Infiniti G35 Maintenance and Repair

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Comments

  • orangecountyorangecounty Member Posts: 3
    I read ALL of the postings tonight on this website for the G35, and I have had most of the problems all of you have written about.

    I own a 2003 G35 Sedan w/ Premium Package, bought in July 2002, and have 33,500 miles on it. (I drive a lot.) I had the rear brake pads replaced recently under the old TSB for squeaky rear brakes (TSB 2003-002). It worked for about 2,000 miles, and then the noise came back! Anybody have any news about fixing this? The brake noise used to occur under light braking on downhill grades or when slowing from higher speeds, say 55 mph+ before the fix, but now it happens all the time!

    I was encouraged to hear that Infiniti will start a brake program, but it's too late for me. Hopefully, they will pay the $415.00 (per the posting above) I spent on the front brake pads and rotors earlier this year when it needed the work at 19,000 miles. I understand letters went out, but I haven't gotten mine yet.

    I was also curious to know if the person who had the dashboard/instrument panel wear (the paint weared off from contact with the free keychain) around the ignition caused by the keychain, which Infiniti gives you with their new car, got their instrument casing replaced for free by Infiniti. I never saw another topic posted on it.

    I'm having my driver's seat frame and CD changer replaced within the next two weeks. The seat frame is in stock, but I'm waiting on the CD changer to arrive at the dealer. Infiniti finally came out with a permanent solution to the rocking driver's seat which does not involve replacing the whole seat. The CD changer on my BOSE system is being replaced because it doesn't accept CDs in the 4th or 5th slot periodically...it spits them back out at me.

    I know that this will sound trivial, but...Anyone who owns a 2003 G35 notice that when you drive a 2003.5 or 2004 that the center display above the clock looks slightly different in the sun? In my car, when the sun shines off the center display, the circuit board stampings are visible. The newer models seem to have a black colored shield that surrounds the numbers and blocks the reflection of the sun off the circuit board stampings.
  • blerner1blerner1 Member Posts: 12
    Wow, after reading about the rattles, squeaks and especially the brake problems, I went and got back my deposit on a 2004 G35X that I was to pick up tonight.

    Decided to keep my 200 Acura RL and wait for the 2005 RL.

    Now I know what the Edmunds review meant by touchy brakes.

    Had a pretty good deal too $ 750 over invoice.

    Hope everyone problems are quickly resolved.

    Cheers for the holidays.
  • das7083das7083 Member Posts: 10
    opimax, where did you get the clear bra?
  • clpurnellclpurnell Member Posts: 1,083
    Congrats I guess. However read the BMW and Merc boards. Cars are machines that break. Lexus has problems so does infiniti, BMW, GM etc. I have an infinti I love. First year model with some bugs but I like it anyway and have been treated well. Good luck with whatever you buy.

    By the way my brand new Honda with 700 miles on it has a hard time starting but I'm not gonna degrade honda for it. I will give them a chance to correct it when I take it in.
  • opimaxopimax Member Posts: 73
    not too surprisingly I would not recommend my clear bra installer. he works out of Baltimore, has a good rep but mine was his first G. it looks it.. never called him back so maybe he would redo most of it. i am just too beat down to fight too may issues at once. I have 2 other cars, 1 is a new Camry that is only a little better than the g but service has need much less than acceptable.

    Mark
  • gkearns56gkearns56 Member Posts: 49
    "freeflier": Stop with the complaining. Since when is ANY rear wheel drive "performance" car to be driven in snow (let alone Pittsburgh's ice & snow; my folks are from Pittsburgh so I know alot about the driving conditions there). This is a rear wheel drive car made for sporting around in not running in snow. Get a Truck, SUV, X-over or sedan with all-wheel drive or front wheel drive car. The tires on those type of cars (vettes, G35 coupe; Camero and etc) are "Sports Car" type; not snowmobiles. Also for anyone having problems with their brakes on the G35, I received a letter from Infiniti regarding my G35 sedan stating they would replace the brakes pads. If you have not received some type of notice, I would contact your dealer because Infiniti is addressing this issue. All cars will have some type of problems but some more prone than others. I've owned BMW, Benz and they are very nice performance "machines". But they have their problems too. I prefer quality and reliability with nice looks and perfromance. BMW quality (and ugly looks on those 7 series now) have gone down in the past several years. Japanese cars have high quality on their cars. I'd take my chances with these cars anyday then with a BMW car. Just look at J.D.Power's and Consumer Reports to see which cars "consistently" ranked among the most trouble-free and dependable cars. I got tired of all these small things always needing to be fixed on my 3-series. Infiniti will listen!. I called them because my G35 purchased in 11/2002 had the clock that was hard to see the hands. I called them and they not only replaced it but have issued a service bulletin that if you have the clock with the smaller hands, they will replace it free too. Just look at the clock in the 2004 model and you can see larger hands on it. It truly is a fun "performance" car if driven like it (not snowmobiling in it).
  • msilver813msilver813 Member Posts: 7
    Has anyone driven their X in the snow today? How did it handle. I am still waiting for delivery as my Maxima was all over the the Long Island Expressway today.
  • klayfishklayfish Member Posts: 48
    See my post under the general G35 category for my thoughts on the G35X in the snow.

    It's a shame some people would decide not to buy a car because of a minor issue. The brakes issue scared me when I first read about it, but the more I thought about it, if that is the biggest achillies heal it has, it could be a lot worse. Most every car has one...the TL and its' trans, Lexus and their trans...BWM and Mercedes their..well, read their boards. NO car is perfect. While I won't accept a poor quality vehicle and will have any minor problems fixed, I am somewhat understanding that wear will happen and a minor problem here and there is not the end of the world. Plus the fact that Infiniti has a good track record and has stepped up to take responsiblity for the brakes. I'm not here to say the G35 is the most well built car ever made, it certainly isn't, but I see nothing to stop from recommending it to people.
  • carnaughtcarnaught Member Posts: 3,582
    I agree that Infiniti finally stepped up to the plate with their coverage on the brake issue. I do hope that you experience better luck with the wear and tear on your vehicle than I have because at the price, it really gets one p.o.'d.
  • mylegacymylegacy Member Posts: 38
    I'm doing some research on the G35X, just couln't wait for the new Subaru Legacy anymore(taking too long). I came across the G35 recall section on the Consumer Report mag. and it said something about the brake lights might not come on when stepped on. To fix it, just have the dealler replace the brake light switch. Simple problem, so why all the bid deal?

    I did do a little researching now I all I got to do is test drive one. The only thing that bother me is the leather. People complain that it's not that great, even Edmunds puts it a "average".
  • msisengmsiseng Member Posts: 369
    The leather is certainly not the quality of Connely, hand-stitched, Jaguar Leather. Wearing a black leather jacket on white or sand-colored Connelly Leather marks it with a black color. I do not see this as a positive and it is almost impossible to clean.

    The G35 leather is cheap with a silver lining: it is easy to clean if you have anyone prone to spilling. Almost like vinyl if you ask me. Spray Nine cleans it very well.

    IMHO - The G35 interior parts appear to be sub-standard. Seems like Infiniti puts all their eggs into the engine rather than into the creature comforts. If you know this going into a purchase, then you will not be unhappy after you buy. The lower-end Mercedes and BMW are also cheap inside and their engines are not as powerful.

    Again, Nissan/Infiniti stepped-up to the plate with the brakes due to public outcry and government pressure. It was/is not a proactive measure. You think they are making money doing the brake pad and rotor replacements? In any case, the bottom line means victory for the consumer.
  • starrinstarrin Member Posts: 10
    Hi,

    My wife and I are looking for a new vehicle and the G35 Sedan AWD quickly made our short list.

    However, I have been reading most of the posts here with much concern. It would seem that some of the posters would go about there purchase differently. I was wondering (if we were to go the G35 route) what you would want upfront from the dealer?

    ie. - a written acknowledgement of the brake problem

    seat problem?

    Thanks,

    Jason
  • centraljerseycentraljersey Member Posts: 16
    I have been very happy with my G35 sport coupe with manual, but then came the snow. The Michelin Pilot/Sport tires that came on the car are evidently not meant for driving in any amount of snow whatsoever. It was a scary trip home on Friday. I got there with no accidents, but had to have friends push the car into my driveway (it has a small incline and, boy, is that car heavy). I was embarrassed by having Kia Rios and Honda Civics rush around in the snow while I was fish-tailing all over the place. I need snow tires, but do I get them for just the back wheels? Any recommendations as to what brand/model to buy would be much appreciated. BTW, suggesting that I drive the G only on clear roads is not an option for me.
  • naveed_rahimnaveed_rahim Member Posts: 17
    Hello,

    I just got my 04 G35 coupe delivered on 21st of November. This weekend I noticed that the metal which holds the side view mirrors is turning white. It is like a fire effect it starts from the edge and going upwards. I am not sure why this has happened. I called the dealer and they are looking into it. I am wondering if any body has the same issue
  • das7083das7083 Member Posts: 10
    I ALSO LIVE IN THE NORTHEAST AND GOT HIT WITH THE BLIZZARD. I TOO OWN A G COUPE 6MT. AS FAR AS I KNOW IT'S GOING TO BE VERY HARD TO FIND SNOW TIRES FOR THE COUPE BECAUSE THE 6MT'S HAVE 18" WHEELS. FROM WHAT LITTLE RESEARCH I'VE DONE I HAVE NOT SEEN ANY. YOU MIGHT FIND SOME ALL-WEATHER TIRES IN A SMALLER SIZE- BUT THAT MEANS YOU'LL HAVE TO INVEST IN RIMS ALSO.

    THE SOLUTION TO THE PROBLEM FOR ME WAS SIMPLY TO INVEST BEFOREHAND INTO AN INEXPENSIVE, RELIABLE 93 HONDA ACCORD WITH FRONT WHEEL DRIVE. FOR AROUND 3K + INSURANCE I'VE GOT PIECE OF MIND AND MADE IT THROUGH THE BLIZZARD WITHOUT A THOUGHT.
  • naveed_rahimnaveed_rahim Member Posts: 17
    WHY ARE YOU typing in all capital, Its seems that you are shouting or something similar.
  • cheerioboy26cheerioboy26 Member Posts: 412
    I have a sedan, but from what I've read the most populat solution for coupe owners with the 18s is to buy a set of winter tires/rims that are 17s. you might check out choices at a place like http://www.tirerack.com
  • kdshapirokdshapiro Member Posts: 5,751
    centraljersey - I feel your pain. And though the conti's handled admirably with my RWD in the recent snow, I do not wish to buy extra rims or snow tires. The last snow convinced me, I will be switching to an AWD, probably the X3 next year. At least I can get away with all-seasons.
  • dsvogeldsvogel Member Posts: 15
    New to these boards, but here is one other observation as to why the smaller cars smoked by you in the snow. It's not just a function of tire type and FWD vs RWD, it also is a function of tire width. You could probably fit 2 or more Civic tire widths in the width of your rears. There is physics behind this, but probably not worth going into. Just know that the huge contact patch of a wide tire in dry conditions can actually hurt you adhesion wise when conditions are not ideal - the tiny fuel efficient skinny tires can actually get more grip!
  • centraljerseycentraljersey Member Posts: 16
    Thank you das7083 and cheerioboy26 for the suggestions regarding winter tires for my G35 coupe and thanks to dsvogel for the enlightening physics explanation. Since New Jersey's insurance rates are sky high (and I have three others on my car insurance policy, including an 18 year old boy's car which is insured for over $3,000/year) buying another, cheaper car is not really an option. I must either get rid of my car, which I love, or I must get better tires. I much prefer the latter. I am amazed that they do not seem to make snow tires or all weather tires, for that matter, for 18" rims. Is getting two new 17" rims (for the rear) with four new all weather tires (are there snow tires for 17" rims?) my only other viable option?
  • abecpaabecpa Member Posts: 3
    My 2004 g35 sedan was purchased 11/03. The car has a definite drift right. Tested it on the same road with another car just to verify how much it pulls. Discussion boards are full of this problem and there is a TSB for the coupe. I am taking it in this weekend and have spoken to service so they take into consideration that there is a problem that many people are having so as to not just do an alignment and say "see ya". Anyone else with this problem? and how was it handled?
  • das7083das7083 Member Posts: 10
    Unfortunately, those are your only options. Snow or all season tires are not available for the coupe with 18" rims (at least I havn't seen any). Looks like 17s are your option if you decide to keep it. Even still, don't expect the car to get around like the Kias.
    I've got plenty of friends and contacts in Jersey,so I know how terrible insurance is. Sorry to hear about your dilemma.
  • gabmangabman Member Posts: 284
    Just received a X-mas Gift from Infiniti.

    I am staring at a cheque from Nissan Canada in the amount of $ 750.00 representing 100% refund of amounts which I paid to dealer for brake work along with all sales tax paid.

    Thank You Infiniti Canada
  • freeflierfreeflier Member Posts: 3
    "gkearns56" your argument just convinced me even more of my mistake of buying an Infiniti G35....I wonder, if RWD performance cars are not to be driven above the snow line, why is that Infiniti is selling cars in Pittsburgh, with a package (18inch sport) that is not made for this climate, and that can not accommodate local driving conditions? why is that they are not even offering "a winter package" to help make this machine more winter friendly (as it is done with the base model)? , and even worse, why is that they are not telling their customers the inherent danger, and cost ($1500+ of going to 17 inches wheels to make it drivable in light snow) of buying such a car?......plus of course all the other problems I have had, and I have been reading in this forum...
    You may view your purchase as just as a beautiful, and powerful car, which we both certainly have in the G35. However, I didn't purchase just that in the G35. I would have never paid close to $40K for just a pretty, and powerful car...I can get that for less. I bought a brand promise based on the equities of quality, service and support. My G35 ownership experience was supposed to be about trust and reliability of the product, and status, and pride of owning it....
    Infiniti failed me as a customer when that promise was not met.
    It failed me when after sending the complaint about these issues, they have not even gotten back to me with suggested solutions..yes, they opened a ticket, but with no follow up...It failed me when I can trust the dealer and brand as much as I could trust a Chevrolet dealer...It failed me when I can not be proud of the car I drive, and when I have people coming at me reminding me about the bad decision I made, and the liability it is...it failed me when I have to spend 30 minutes, at home on a snowy Sunday writing a note like this....
  • das7083das7083 Member Posts: 10
    Have you ever thought that that the purchase you made was just a bad purchase for YOU? Most of the arguments made in your post are not the result of Infiniti's shortcomings but your ignorance.
    If you had complained about the the brakes, seats or other manufacturers defects, then I'd understand perfectly why you'd detest Infiniti. But complaining about a sports coupe because it's a sports coupe? If you'd done a little research before you bought the car, you would have known that it's built more for performance than snowmobiling. Is it Infiniti's fault that you wanted a beautiful, powerful snowmobile?

    "I wonder, if RWD performance cars are not to be driven above the snow line, why is that Infiniti is selling cars in Pittsburgh, with a package (18inch sport) that is not made for this climate, and that can not accommodate local driving conditions? why is that they are not even offering "a winter package" to help make this machine more winter friendly (as it is done with the base model)? , and even worse, why is that they are not telling their customers the inherent danger, and cost ($1500+ of going to 17 inches wheels to make it drivable in light snow) of buying such a car?"- freeflier.

    You've got to be joking, right? Plenty of people are buying this car above the snow line. Most already know that the car should not be driven in snow. There are plenty of other fair weather vehicles sold in the northeast- are those manufacturers also responsible for warning others of the inherent danger of driving in snow-such as Porsche and Harley-Davidson?

    Bottom line is YOU made a terrible decision. But it's not too late to rectify the situation. The G coupe has outstanding resale value. Next time I would suggest just doing some homework and not just buying a car that's pretty to look at and goes fast.
  • bryannbryann Member Posts: 54
    at this point, just spend a little more money and buy a set of 17 inch rims and put all season tires on them. yes, they will fit, because you upgraded to 18 from the stock 17's. also, look for a very good tire shop and they will definitely be able to help you out with getting a good set of all season tires. they may only help to the point of ground clearance.

    all your other rants about them failing you for selling the car to you really doesn't make much sense. adults, at times, need to take responsibility for their actions.
  • freeflierfreeflier Member Posts: 3
    The only thing I would have expected from Infiniti was to have them to be honest enough to tell me, when I bought the car, that no snow tires, or all season tires would be available for that package at all, ever! and the potential cost of converting it....then my "adult" decision would have been very different...
    bryann, thanks for the suggestion. I already looked at TireRack and decided to but the Michelin Pilots..the problem now is that they don't have the rims (original rims are close to $1000! from the dealer)...nothing seems to come easy with this car..
  • centraljerseycentraljersey Member Posts: 16
    freeflier, from my earlier post you can see that I am in the same boat with you regarding the snow tires, or rather, the lack thereof. I think that the salesman might have mentioned this to me as he knew I had been driving a Camry for thirteen winters. It was an oversight, as I do not think he was "dishonest" and deliberately hid that fact from me; I will give him the benefit of the doubt. So, it seems that I have in my future 17 inch rims with all weather (not snow) tires on them. Apparently that is an expensive proposition. I guess that also means paying quite a bit to have the tires changed each winter/spring.

    bryann, do not be so hard on freeflier. No all of us are car buffs who would know that the G35's 18 inch tires could not be fitted with snow tires. It is not something that one would consider after driving Corollas and Camrys for 30 years as I have done. 18 inch rims and 17 inch rims, what the hell are they? As far as I knew, there were big and small tires and for every car's wheels all-weather and snow tires were made. Before buying my G35 coupe I read every car magazine article I could get hold of and read many things about the car, but not a one, as far as I can recall, mentioned this. I guess they all assume that those who are interested in buying the car will know. But what of the first time buyer of a "sporty" car like me or like freeflier? How were we to know? I did not even see it mentioned on any of the web postings that I read; all they spoke of were the supposed advantages of front-wheel drive over rear-wheel drive when driving on snow. So please cut us new guys some slack, but thanks for the helpful suggestions.
  • msisengmsiseng Member Posts: 369
    Don't people realize a RWD car does not do well in snow? Mine remains in the garage every time it rains or snows.

    This may be a stupid question so no flames please:

    Can one put 18" rims and tires on the G35 Sedan? Are the wheel wells large enough to support a larger rim without the tires rubbing? Does anything need to happen with the suspension if one can use 18" rims?
  • cheerioboy26cheerioboy26 Member Posts: 412
    I think over on another forum i have seen people put 19s on the sedan, so 18s should be fine. might depend on the actual rims though.
  • q45manq45man Member Posts: 416
    "Just know that the huge contact patch of a wide tire in dry conditions can actually hurt you adhesion wise when conditions are not ideal - the tiny fuel efficient skinny tires can actually get more grip! "

    Wider tires don't have a larger contact patch in AREA.......the width may be wider but the tread length is not as long.......duh!

    X amount of weight on a tire divided by the inflation pressure is the AREA in square inches!

    Tire to road friction is a function of weight on the tire and tire compounds and how they react to temperature.
    What most don't understand is Summer tires are only designed for Summer temperatures below 50F they get funky as the tread compound hardens!

    In many parts of US to achieve optimum friction you need 3 sets of tires: Summer, A/S for Spring and Fall, Winter/Ice for Winter temperatures.

    Something owners don't understand and surely don't want to pay for thus ignore - Physics.
  • bryannbryann Member Posts: 54
    i believe going to 18 inch rims shouldn't be a problem but certain tire sizes may be limited. if the tire gets too wide, it will rub and you would need shims or spacers to stop that. if i am not mistaken, don't you live in the wash dc metro area? if so, as i do as well, there is a great tire shop in silver spring called Radial tire. i have been going there for over 6 years any buy all my tires from them. they have some of the most experience guys i have ever seen in regards to tires and rims. if you ask around, most likely their name will come up. they only have one shop, but well worth the drive for the prices and service and helpful suggestions. i drive from Howard county all the way back there for tires, free rotations, and patches if necessary.

    also, centraljersey and freeflier, i just re read my post and it came across more harshly than i had intended. i apologize. factory anything is always very expensive. i would consider buying a nice set of aftermarket aluminum rims in 17's with all season tires. is the point i was trying to make. $1000 for the factory rims is ridiculous. having driven in a lot of snow and having bought many different sets of all season performance tires, i guess the shop that i go to has really educated me on the decisions that i make in regards to tires. anyway, sorry for the long post, but wanted to try and set the tone of my original message straight.
  • abecpaabecpa Member Posts: 3
    As a followup to my post last week. Infiniti has had a problem with their cars pulling to the right. However, they fixed my problem and the car drives just fine. The alignment was not at factory specs, seems that is common when they tie down the cars on the truck and do not check them before selling them. They realigned to spec and things are good.

    In between my post, there are a lot of problems with driving in the snow. Glad I live in S. Florida.
  • das7083das7083 Member Posts: 10
    I too apologize if my previous comments were unnessisarily abrasive. Your problems are just hard lessons learned. My intentions were not meant to belittle anyone, but to attempt to place more accountability on the purchasers. But as centraljersey stated, we are not all "car buffs." Therefor, one shouldn't assume that everyone who visits this site knows the different dynamic of vehicles. I only wish this site or information was available when I purchased my first vehicle for way too much and received way too little.

    Centraljersey- if you do plan on keeping the coupe, I'm sure you'll be able to find after-market tires and rims (that won't void your warranty) in northern jersey or the ny area at discounted prices. If I were in your shoes, I wouldn't go back to Infiniti just for rims.
  • msisengmsiseng Member Posts: 369
    I will check with Radial Tire. Good to know you drive from Howard County to Silver Spring. Must be a good group of people! They should know if the shims and spacers are necessary.

    Could care less about optimum friction and temperature as the car is seldom driven in adverse conditions.

    Regarding cars pulling: most cars come off the assembly line out of alignment. Then, the carrier truck ruins it more. Always get the car realigned before delivery. Years ago, Mustang GTs had a terrible problem with uneven tire wear. Ford finally figured out the root cause was the factory AND the transport trucks and rectified the matter. Tires on that car were not inexpensive!
  • dsvogeldsvogel Member Posts: 15
    "Wider tires don't have a larger contact patch in AREA.......the width may be wider but the tread length is not as long.......duh!

    X amount of weight on a tire divided by the inflation pressure is the AREA in square inches!"

    What was your major in college?!

    Dude, remember I said I didn't want to get into the physics? Even though just canceling lbs by the inverse of psi gives you inches it is not a good solution. Things are more complicated that that. If that were true you would be telling me that a bicycle tire running at 50 psi and a car tire at 50 psi with the same weight on them have the same possible contact patch.

    But don’t take my word for it – here is a quote from a Physics teacher on a website:
    "Friction is proportional to the normal force of the asphalt acting upon the car tires. This force is simply equal to the weight which is distributed to each tire when the car is on level ground. Force can be stated as Pressure X Area. For a wide tire, the area is large but the force per unit area is small and vice versa. The force of friction is therefore the same whether the tire is wide or not. However, asphalt is not a uniform surface. Even with steamrollers to flatten the asphalt, the surface is still somewhat irregular, especially over the width of a tire. Drag racers can therefore increase the probability or likelihood of making contact with the road by using a wider tire. In addition a secondary benefit is that the wider tire increased the support base and makes it hard to turn the car over in a turn or in a mishap."
    Answered by: Stephen Scholla, B.A., Physics Teacher, Vienna, Virginia
    www.physlink.com/ae200.cfm

    Why are those smaller tires on the fuel efficient cars? Yes they may be running at high pressures, but the smaller contact patches give less rolling resistance. Why make wider tires? More area to make contact and better lateral grip. So going back to my original statement, heavier sports cars running wider tires (G35) normally have worse snow performance than smaller fuel efficient cars (CIVIC) running tiny narrow fuel efficiency tires. Read the original post where the ? was on why those cars were doing fine and his coupe wasn't.

    Or take the Tire Racks’ website:
    A wide, low profile or large tire has to "plow" a wide path through snow which causes more resistance. The narrower the tire, the easier you can get through snow.

    You may wonder why I took this tone in my post or you could just keep writing like you are the supergenius and getting confused between inflation psi and pressure being transmitted to the ground. Of course who ends up saying "duh" then. Your choice Homer.
  • q45manq45man Member Posts: 416
    Notice I Capitalized AREA........wider tires have more total surface area [and less thermal resistance to the wheel to dissapate the heat] but not more area in contact with the road at any moment.
    The wider surface area cools the the carcass faster........this is why to some minor extent wider low profile tires SEEM to have more friction under certain conditions.

    Wider low profile tires tend to be SUMMER COMPOUND tires thus are pretty useless when the temperature drops below the plasticization point [40-50F].

    Narrower conventional tires tend to have a wider temperature range thus a lower plasticization point........All season [spring and fall] tires are examples at the ultra premium ones may function down to 25-30F.

    The compound is 3-4 times more important that the tires aspect ratio........Note you can now get really good compound snow/ice tires in 18" and really bad ones in 15".
  • dsvogeldsvogel Member Posts: 15
    OK Q45man, I see what you are trying to say, but notice I never even had AREA in my original post. Maybe I should have said "wider" instead of "larger" contact patch.

    Seems to me though, that given the same tread pattern and compound a skinnier tire will do better than a wider tire in the snow because of that whole "plowing" tendancy. It might not be making contact with the road, but it might be making contact with some snow right?

    Come to think of it I remember a few years ago some guy was marketing rims that allowed you to mount two skinny tires side by side to achieve an overall wider profile. He claimed better wet/snow performance than a wider tire etc... Price was pretty high though.
  • fornovfornov Member Posts: 34
    I posted a message earlier in this thread (#951), and I wanted to follow up for everyone. I was having a problem with my transmission; specifically the car would slip out of gear when accelerating. This happened mostly on a shift from 2nd to 3rd, or from 3rd to 4th, but not always at a shift time. FYI, I have a 2003.5 G35 AT with premium and winter packages.

    I got the car into my dealer a couple of days later, and they told me the transmission was broken! I don't know a whole lot about automatic transmissions (or manuals, for that matter), but they were going to have to replace the tranny. The tranny was shipped from Nashville, and I got a loaner of Thanksgiving. (The loaner was an I35 -- not a bad car, but geared more for my dad's demographic, I think.)

    They never did tell me why the tranny broke. I have not heard of ANY trannies breaking in the G35's. In fact, that was one reason I shied away from the Acura TL-S. Has anyone heard of tranmission failures in G35's, and does anyone know what might have happened? I've tried following up with the dealer, but I don't think they're in the loop anymore because Infiniti has the old tranny now.

    On the bright side, the repairs didn't cose me a penny, and I got to try something new for 2 weeks (took a little longer than usual with the holiday). On the dark side, I worry that my transmission may fail again, and it could be in a dangerous situation.

    Other points: my brakes are starting to squeal...usually on light braking, but inconsistently. I will have this looked at as well. I'm not too worried, at least for the first 36,000 miles!

    Also, I have had no trouble whatsoever driving in the snow. I live in Iowa, and we have had 4-6 inches twice so far, in addition to several dustings. This is nothing like 18 inches, obviously, and I do have tires with only 5000 miles on them. Granted, I have to go a little slower, but this is true for any vehicle. I used to live in Minnesota, so I am used to driving in 12+ inches of snow. I wouldn't expect to get too far in that much snow with anything slort of a 4WD Wrangler/Hummer with great tires and balance and huge clearance. I do think common sense dictates that sport cars with RWD and performance tires will be quite lousy on any wet/snowy road surface.
  • dsvogeldsvogel Member Posts: 15
    The more I think about it the more there is a big fault in your equation/logic and even if you capitalize AREA it still does not work out.
    Weight / Inflation PSI = AREA

    So if I had 0 inflation PSI I would have an infinite area?

    Yes inflation PSI has something to do with the amount of tire in contact with the ground. In fact underinflating reduces your AREA as well as puts the wrong part of the tire in contact with the ground. However the correct way to form this equation is:

    Weight/Area of contact patch = Pressure on the pavement.

    See that physics prof's quote. Wider tires spread out the same amount of weight over a greater AREA.
  • q45manq45man Member Posts: 416
    Suggest you look at the AREA of the contact patch as tire engineers do with a transparent glass road.

    Obviously the simple equation cannot take into consideration the sidewall stiffness which makes it nonlinear till one approches the 20-51 psi range.......tire patches are measure at 35 psi [industry standard].

    The other problem is the void ratio [the blank space between the treads and designs]......vs a slick which has no void space .....the AREA is all rubber vs a Summer tire which may be 80% rubber vs an A/S tire which wil be 75-73% rubber vs a snow tire which may be 65-68% rubber.

    See the actual area vs the actual rubber area....the more the voids the greater the pressure on each segment of rubber.
  • gkearns56gkearns56 Member Posts: 49
    das7083: I have to agree with your comments to "freeflier" about sports cars. Freeflier you must not be a true sports car enthusiast. Like das7083 basically said, sports cars are truly not meant to be driven in the snow or awful weather. (Why do they sell them in the Pittsburgh area you said). Why not? Why do they sell Harley's or a simple bike, or a Mustang, Corvette, Porsche, or Ferrari? People that own these type of vehicles and are sports car enthusiast are aware they'll sacrific handling in the snow (RWD) for that terrific handling one gets from these type of cars. You seem to be complaining more about whether it should run in the snow or not. If you got that "lemon" then use the lemon law in your state. I read the postings on this site to see what other car buffs are communicating (good or bad). Did you contact the rep in your area and try working with them to resolve any of your issues. Based on how much you complained in your posting, if you spoke to the rep in that manner they may have gotten defensive about the situation; now it's harder to get it corrected.
  • kgtripskgtrips Member Posts: 5
    This is my first post so pardon me if its long winded. to start I am 40 yrs old and live in toronto ( ie witnessed 40 winters ). I don't own a g35 but I'm in the process of a deal on a 6mt coupe. as such I've been lurking on this and other g35 forums for a while.
    I currently drive a 5 spd BMW 323i sedan w/ 17" rims and Pirelli all seasons on it. Its a rear wheel drive as are virtually all sports or sporty cars. My wife drives a rwd 1999 maxima. They're both crappy in the snow . Of course they are. Without good snow tires no rwd is going to be any good in the snow. This should not come as a surprise to anyone. Certainly a sports coupe with 18' rims and high perf. summer tires is going to slide around. Even none physicists like me can figure that out.
    Freeflier really should have expected what he got. This probably wasn't his first winter in Pittsburgh.
    To put it simply you don't go out in a snowstorm in loafers. You put boots on. a car is no different.
    I suspect freeflier will bite the bullet and get rims and tires. I am surprised the dealers were not up front. Both dealerships I've approached told me I will have to buy snows and gave me a a not very good price on them.I didn't need them to tell me that( 40 winters, 24 driving in them blah blah blah).

    The reality is that you bought this car because of what it can do in the summer. if you push it in the winter you'll end up in a ditch with or without snow tires. You also bought it because on an emotional level you had to have it and could afford it ( ie a lot less than a porsche and rear seats for the kids).

    I've read all the complaints about this car on the boards- snow, cheap interior, brakes, even clutch wear problems. I'm still buying it.
     
    Reality is , those guys in the kias and civics would rather be fishtailing in the g35. I have to agree with DAS. Live with your decision , get snows or buy an SUV.
  • msisengmsiseng Member Posts: 369
    You mention a good point about rear seats for the kids. Please note that in order to safely install a car seat on the G35, you need to use the locking clip supplied with the seat. This firmly holds the seat in place. Otherwise, the infant/toddler/child seat will slide all over the place. On some vehicles, you do not need the locking clip to hold the seat firmly in place. Not true of the G35 sedan.

    This is NOT a problem...just do not throw away that locking clip that comes with the seat. Just trying to save lives and hopefully this will help someone. AND...I do speak from a very knowledgeable perspective.
  • chrisbothchrisboth Member Posts: 493
    but what where the heck is this locking clip and how is it applied?
  • dsvogeldsvogel Member Posts: 15
    Actually, you don't need a locking clip if you buy a car seat which is LATCH capable. I highly endorse these seats. We have two of them and they are much easier to take in and out than a normal one. LATCH = Lower Anchors and Tethers for CHildren. Also called ISOFIX or other names. I think it is now industry standard to have them in a cars rear seats. I know the sedan has them, I am pretty sure the coupe does two.

    These also make putting your car seat in a rental car that is newer go quick too.

    If you don't have a LATCH capable seat/car I also will put in a plug for a "Mighty Tite" Available at WalMart etc... It is a ratchet clip that tightens the belt way tighter than you ever could.

    Here is the web address for Infiniti's own carseat guide as well.
    http://www.infiniti.com/m/pdf/child_safety_FX45.pdf
  • eticketrideeticketride Member Posts: 53
    Not sure about other areas, but here in San Diego, the California Highway Patrol and some police stations offer free installation of car seats. They will walk you through the process and go over the do's and don'ts. They really get that car seat in there very tight without the rachet clip! Awesome job!
  • gkearns56gkearns56 Member Posts: 49
    kgtrips: I echo your comments to freeflier. When you buy a sports car, they are built to be ran in the summer and those nice fall months too; not in the winter with snow on the ground. Even with snow tires, these sports cars are not truly meant for treading in snow. They are the cars we all wish we could have for those summer days. I hope he is able to work things out with the rep because those Infiniti's are a really nice car and give a lot of bang for the buck too.
  • ryokenryoken Member Posts: 291
    I thought 1999 Maxima's were FWD, not RWD. All Maxima's since at least 1990, if I'm not mistaken.

    The G35 Sedan's rear seatbelts will switch to a locking ratchet mode if you pull them all the way out and release. Then the locking clip is not needed. Many cars do this.

    I recommend one of those non-skid car seat protector pads that goes between the car seat and your leather seats to prevent indentations and rips in the leather.
  • chrisbothchrisboth Member Posts: 493
    Damn who of us nonparents though the seatbelts did this? Wow cant wait for the baby to get here now...."can you say hemi"
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