Infiniti M35/M45 Maintenance and Repair

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Comments

  • nycdudenycdude Member Posts: 33
    It is probably a missing fuse, not a blown one. When I took delivery, the clock was not working, and the salesman (otherwise extremely capable) couldn't figure it out. When I got home and found homelink inoperable also, I remembered previous posts where people had found a fuse in the ashtray. That's where I found the missing fuse, and I just figured out where it went by its size , i.e., amperage, and something I found in the manual about the fuse box location.

    Hope this helps.
  • rrhearrhea Member Posts: 3
    Highway mileage on my new M35 is good, about 24 MPG. City mileage is very disappointing, about 13 MPG. I don't know why it is so bad.
  • nycdudenycdude Member Posts: 33
    My M35 is normally parked from Mon-Fri in an attended garage. I leave the smart key in the port and the attendants need only use the button to start the car. This evening, the car having been unused since last weekend, I found a dead battery. Infiniti roadside assistance provided a jump start, but I was delayed by over an hour. I believe that the attendant who parked my car inadvertently pressed the button more than once when shutting it down, and the ignition was left on. Of course this would eventually drain the battery. I checked the manual, and there does not appear to be a timer that shuts down power if the car is left in the "on" position. This problem could occur with a key-operated ignition, too, but only if the key were left in the ignition, which garages do not usually do. I guess my only way to avoid the possibility of a recurrence is to check the car during the week to make sure it will start. Any other suggestions?
  • mwgmwg Member Posts: 28
    Tip the guys to check your car... money talks
  • bcorigbcorig Member Posts: 13
    M-35 10,000K. Love the vehicle. All I want to do is drive it. I don't even want to eat anymore.
    I have been experiencing the following: In Drive, while traveling down a certain steep hill in my neighborhood at 40 - 45 MPH, the engine begins to rev to 3500 - 4000 rpm, as if it had downshifted. There is no engine braking
    action. The vehicle does NOT accelerate with the higher RPM - the phenomenon seems to be a downshift.
    8 - 10 occurences in 10,000 mi.
    As I decelerate to the bottom of the hill the RPM gradually decreases to about 1500 then goes to idle as I stop.
    I can extinguish this by going into manual shift and then up shifting into 5th gear. If I go back into D it returns.
    Has anyone else experienced this phenomenon?
  • mwgmwg Member Posts: 28
    On my M35, when I set the A/C to auto, no matter how low I set the temperature, the fan never goes faster than the second stage. In order to get adequate cooling I have to manually set the fan at a higher speed. Does anyone else have this problem? Solution?

    Thanks,

    Emgee
  • jdmassjdmass Member Posts: 14
    I've only had my M35x for two weeks, so I can't speak as authoritatively as others, but quite simply the gas mileage is AWFUL. My BMW 540, V8 easily averaged 19-20 mpg with no attempt on my part to economize.

    With the M, if I treat it gingerly, I can get 16-17 in mixed driving conditions. Prior to my 540, I had a BMW 528 (I-6 engine) which was consistently in the 22-23 mpg range, and a hell of a lot smoother than the 6-banger in the M.

    I know this sounds harsh, and I like the M very much in most respects, but this just smacks of poor engineering.
  • bocatripbocatrip Member Posts: 194
    The M35 and G35 are known and proven to be horrific on gas. I own a G35 and my car is quite thirsty. I drive very conservatively and I get around 14-15 in the city. I do all city driving. One of the reasons I'm considering on bailing from my Infiniti is the poor mileage. I have been considering the Lexus GS300 which averages 22 in the city and high 20s on the highway. There is nothing that can be done with these Infinitis. They just like gasoline. Have you noticed upon starting them cold you get a distinct gas smell? They also run rich.
  • carnaughtcarnaught Member Posts: 3,585
    I've only had my M35x for two weeks, so I can't speak as authoritatively as others, but quite simply the gas mileage is AWFUL.

    It will probably improve after it's broken in. My M35 sport gets 18-20 mpg in mostly city driving. On the highway it gets 23+ mpg.
  • carfan13carfan13 Member Posts: 1
    We are considering buying an Infiniti M35 Sport. Overall, it seems to be an excellent sport/luxury sedan. However, its requirement for premium fuel is a major downside in the world of high gasoline prices. I have noticed though, that not all Nissan/Infiniti cars with the 3.5-liter (VQ) engine require premium fuel. For example, Nissan “recommends” premium fuel for the Nissan Altima for maximum performance, but the manufacturer says that regular, 87-octane gasoline will suffice. Infiniti, though, says that its M35 sedan must use premium fuel. Because the Nissan with the same engine can use regular fuel, will regular fuel be okay for the Infiniti M35? I know that today’s cars can generally cope with lower-quality fuel because the engine readjusts its combustion to account for lower-octane gasoline.
  • bocatripbocatrip Member Posts: 194
    Bottom line on using anything other than Premium for the G35 or M35 is this. You will lose sufficient power and ultimately get worse gas mileage than with the suggested premium. I have tried using a middle grade gas for a G35 loaner and noticed the difference right away. Loss of power. Why get a high performance car, use cheaper fuel and have a low performance car. If the manufacturer says use Premium, there is a reason. Unfortunately, gas is pricey. If this is an issue, there is no reason looking for any car that uses premium. Good luck.
  • velveteendad1velveteendad1 Member Posts: 36
    If you read through other messages in this forum, other people have confirmed that the M35 is fine with regular 87 octane, but the M45 needs premium.
  • kgrinderkgrinder Member Posts: 2
    I've had a 2006 M35 for two months now. Using premium and driving mostly city, about fifteen miles each way to work and around Palm Beach County on the weekends. Mileage started out at 17.3 but now is holding steady at 19.5. Not too shabby, from what I'm reading in these posts. :shades:
  • rlejr66rlejr66 Member Posts: 44
    For what it is worth, the manual clearly states that the car will function with 87 octane fuel. But Infiniti suggests you use premium for maximum performance. I have seen this debated from one side of the barn to the other. The majority of the car guru's seem to think it doesn't matter. I use regular in my M35 Sport and have not noticed the difference, except for the extra change I get to keep in my pocket! Good luck with your decision.
  • edspider1edspider1 Member Posts: 195
    That was a key reason for me bailing out, too. I think the AWD system really kills the mpg in the M. I moved to the E350 a couple months ago. I get 21 without trying and like it a lot more than my old M35x.
  • bocatripbocatrip Member Posts: 194
    Epsider1..........Do you really find that you enjoy the E350 more than the M35X? The reason I ask is because they are such different cars. One being the sports oriented and 4 wheel drive and one being more luxo and front wheel drive with much different road manners. I'm glad to hear it since I'm gearing towards the GS350 over my G35.
  • bw45sportbw45sport Member Posts: 151
    and one being more luxo and front wheel drive with much different road manners.

    The E-Class is rear wheel or all wheel drive.

    Also, while every penny counts, I would like to weigh in on the mpg issue a little further. We will use the number Ed has provided from his E350, 21 mpg, which probably skews a little high for mostly in-city driving and use a number oft-cited for the M35, 15 mpg, a number I think is a little low unless you drive it mostly in-city, on short trips, with time for the engine to cool between trips.

    With these numbers, if you drive 12,000 miles per year and gasoline remains at $3/gal, you arrive at the following costs:

    E350 - 12,000/21 = 571.4 gals @ $3.00 = $1552.20
    M35x - 12,000/15 = 800.0 gals @ $3.00 = $2400.00

    This results in a difference of $847.80 or about $70/month assuming worst case scenario. Now, while this is not inconsequential, let's compare the lease prices of the two cars mentioned.

    36 month leases, 12,000 miles/year, at current prices of cars similarly equipped.

    E350 4matic - price $59,000 for a monthly lease price
    of $1,039 before taxes.

    M35x - price $50,500 for a monthly lease price
    of $673 before taxes.

    At these prices, the Benz includes proximity warning sensors rather than back-up camera. The advantages of both have been argued and I have had both. I prefer the camera for a couple of reasons. The sensors do not pick up low-lying objects. Toys, children, curbs and other objects lower than the sensors will not be identified. Also, if you are in a parking lot and have had the fortune of parking next to the ubiquitous long SUVs, you know how difficult it is to see oncoming traffic behind you. The wide-angle lens of the camera lets you see objects behind you that you could not see with the naked eye.

    Also, the Benz does not include the following:

    - Intelligent Cruise - Interesting that this option is
    not available on the E Class. It used to be.
    - Lane Departure Warning - Some people don't care for
    this anyway.
    - All Leather - The model quoted comes with leather on
    seating inserts only. The rest is M-B vinyl. The
    M-B Tex is nice though for vinyl.
    - DVD Audio - While the surround sound system is
    included in this price, you can't play DVD Audio,
    DTS, or Dolby 5.1 encoded music.
    - Heated and reclining rear seats
    - DVD Entertainment System - I hate that Infiniti chose
    to mount the monitor on the roof rather than in
    the seats. I can imagine that it obstructs the
    rear view. It is something, however, not
    available in the Benz.
    - Voice Activation of Many Controls - Some people have
    problems with voice activation. While my ex-
    perience hasn't been perfect, I've yet to see a
    voice recognition system that is, it is accurate
    enough that I use it all the time. It is much
    handier and safer than diverting your attention
    from the road.

    I believe the more complete feature content, reliability, and dramatically cheaper entry price of the M certainly outweigh the added fuel and rubber costs.

    However, if you want a car that provides a smoother ride, more prestige, and a likelihood to have fewer rattles, then the E can make sense if you are willing to pay more.
  • bocatripbocatrip Member Posts: 194
    Sorry for my misunderstanding about the E350. I have been spending so much time looking at Lexus I was thinking of the ES350 when it was mentioned by Edspider1. I was not even thinking Mercedes. I think we should start including the make as well as the models when making comparisons since they sound so similar.
  • docnukemdocnukem Member Posts: 485
    I think edspider's biggest complaint was noise (road, tire, and engine).
  • james27james27 Member Posts: 433
    Has anyone considered giving the M-series a good dose of Dynamat? I was surprised at how load the stereo is on the outside with the door closed. I would think that is an indication of how easily sound would come in through the doors.
  • bw45sportbw45sport Member Posts: 151
    I think edspider's biggest complaint was noise (road, tire, and engine).

    You're right Doc. I remember his comment that the fun of the "boy racer" nature of the car wore on him quickly and he preferred the classic, refined, elegance of the E-Class.

    I did respond though to his agreement that the awd of the M35x probably drags down the mpg of the car and it was "one of the key reasons that he bailed out" and opted for an E350.

    I agree that Infiniti automobiles, for the most part, compare very unfavorably to their competition in mpg examinations. As I stated before, however, even with the added fuel expense the cost of ownership is still significantly less than the competition.

    That said, with people's sensitivity to higher fuel costs it would serve Infiniti well to address poor mpg results.

    P.S. - While I've conceded that the M doesn't fare as well as it's competitors, I've still achieved an average mpg greater than the EPA estimates.
  • bennet1bennet1 Member Posts: 2
    There are a number of posts on this board that refer to road noise or tire noise. The tires on my M-35 Sport are worn and need to be replaced. Is there a tire other than the Bridgestone Potenza 050 that has less road noise? I would be willing to sacrifice a bit of handling.
  • sfcharliesfcharlie Member Posts: 402
    Don't own one yet, but have read about rattle complaints. Found this website:

    http://www.infinitihelp.com/Infiniti/Bulletins/M/2006/1.htm

    It has Infiniti service bulletins, several of which talk to techs about rattles. Hope it helps someone. Rattle would annoy me greatly in a 50K car.
  • bocatripbocatrip Member Posts: 194
    As we are approaching the era of larger wheels, lower profile tires, and shorter tread life, road noise from tires are going to become an inherent characteristic of most of todays sports sedans. There is no way around it. When the rim gets bigger, the distance between the rim and the road gets smaller and thus, harder ride and more noise. To make matters worse, more wear and alot more noise.
  • sfcharliesfcharlie Member Posts: 402
    I went through a futile search for source of rattle on a Passat once, until a friend mentioned he had experienced one in a Toyota that turned out to be due to a misfiring spark plug. Right after I changed plugs on the Passat, the rattle disappeared.
  • omromr Member Posts: 1
    Considering purchasing an M35X
    Anybody had any problems that resulted in a visit to the repair shop?

    I am also concerned about the push button start. Is it possible that the button could break, and then I would not be able to stop/start the car?
  • james27james27 Member Posts: 433
    I've had my M35x since last August...so far, so good.

    About the switch...anything can fail. It could just as easily be the ignition switch of a car that used a key. The more problematic thing is losing the key fob...the electronics will prevent the car from starting. If you don't have the second fob handy, you need to buy a new computer as well as the new remote fob from what I hear - big bucks. Unfortunately, this is becoming more common as car manufacturers try to come up with means to help prevent the cars from being stolen - Infiniti is by no means the only one.
  • sfcharliesfcharlie Member Posts: 402
    A rattle noise comes from the rear of the vehicle when driven over speedbumps or into potholes.
  • james27james27 Member Posts: 433
    Make sure the spare tire is tightened down.
  • sfcharliesfcharlie Member Posts: 402
    No, sorry, my posting was unclear. An Infinti service bulletin tells techs that one cause of such a rattle -- of course, it might be nothing but a loose spare -- has been found, in some cases, to be coming from parking brake cable and can be fixed with adjustment and lubrication.
  • blov8rblov8r Member Posts: 567
    Try the dimmer dial.

    Bart :shades:
  • laderakingladeraking Member Posts: 69
    Hyndai Elantra 1996 had changeable LED's Green, Orange, Blue
  • laderakingladeraking Member Posts: 69
    Wondering if it is a cool feature or is it overrated?
  • brianfoxbrianfox Member Posts: 25
    The Homelink buttons themselves don't light up at all. Do yours?
  • laderakingladeraking Member Posts: 69
    Got a great deal from Mission Viejo Infiniti, email me and I will give you a name.

    Hey does anyone have the Blue exterior with Black interior?

    Do you like it?

    Any other color thoughts welcome.
  • blov8rblov8r Member Posts: 567
    Bennet: "Google" tires, buy tires, etc. You can find any number of websites offering all makes of tires ... key in the 245/40R 19 parameters, see what comes up and by which manufacturer, and there will be customer ratings of the tires for you to review. On one website I found that size for ~ $200/tire ... but not Potenza's and not RunFlat tires. RunFlat tires, from what I've read (that's what's on my M35 Sport) are noisier and ride harder than the others. Personally, I've not been at all unhappy on either account with mine.

    BTW: How many miles did it take you to wear those Potenza's down?

    Bart :shades:
  • blov8rblov8r Member Posts: 567
    Any other color thoughts welcome.
  • blov8rblov8r Member Posts: 567
    Any other color thoughts welcome.

    My Sport is Crimson Roulette with the lite interior. I've not seen another one around here ... everyone seems to like the gray, blue, and black. Bart :shades:
  • brucebrucebrucebruce Member Posts: 11
    hi!
    can i get a little more detail about your deal?
    i am this close to buy a car soon after returning my bmw.
    thanks
  • laderakingladeraking Member Posts: 69
    You can read the specifics in the "prices paid thread" but basically it was
    M45 sprt, with goodies MSRP 57000, I am paying 500 over invoice.
    4k down 580 a month for 24m/12k in CA.
  • brucebrucebrucebruce Member Posts: 11
    M45 sprt, MSRP 57000, 500 over invoice
    4k down 580 a month for 24m/12k in CA
    sounds really good to me............
    please introduce me the dealer....
    Is that $580.00 before the tax or after the tax???
    I'm in L.A. CA
    How far are you at???
  • laderakingladeraking Member Posts: 69
    580 is without tax, I think the total would be 620.00 or something close.
    I'm in Orange County.
    The dealer is Mission Viejo Infiniti. Email me and i will give you my sales guy.

    Good luck
  • donbregmandonbregman Member Posts: 5
    I could not believe that the Homelink buttons were not illuminated so I called my local Infinity dealer for an appointment. The service guy on the phone could not believe it as well. WELL, I was right. Upon a very comprehensive inspection of not only my vehicle but another brand new M35 from stock, they determined what I had expected all along. A royal screwup by Nissan. They gave me an Infinity consumer phone number to talk to a human being. I called, explained my situation He took the info and said that probably nothing could or would be done. This was about a month ago and so far, no response from Infinity.
  • art234art234 Member Posts: 99
    Regarding Homelink, I only see 1 LED-the status light, which is the same as the G35 and Murano. For me that works just fine.

    Now a question--does anyone who has an M use it with a Palm Treo 650? I called Infiniti and they said the Treo is not fully compatible with the bluetooth network in the car. They did however mention that the Treo was tested before the firmware update, so it might work now--I am just wondering if anyone has had any experience.

    Looking forward to picking up my M35x on Saturday!
  • donbregmandonbregman Member Posts: 5
    It must be wonderfull to be able to see in the pitch dark. Unfortunately for me, I can not.
  • art234art234 Member Posts: 99
    Don,

    I wasn't being a wiseguy, I live in NY where it is never Pitch black-but I have it down by feel as well.
  • cilurzocilurzo Member Posts: 3
    Here is how my Treo 650 works on the "M". The Bluetooth only connects when a call is coming in... which you can answer and talk handsfree.

    However, making a call only can be dailed from the Treo... once the call starts to connect, the "M" handsfree is conncected and operates just fine.

    So what doesn't work - is making a call via voice commands on the "M". Even if the number is in the M's address book it will not connect to the Treo 650.

    Mostly I answer calls when driving - I rarely make them from the car... so it's works ok for me. But I sell Infiniti's - and I would love to hear from others - especially if your Treo 650 experience is any different than mine.
  • james27james27 Member Posts: 433
    Is there an option to have the treo keep bluetooth on all of the time? It would affect the battery life, but that seems like it may be the problem. Do you see the icon on the upper right showing signal strength only when making a call? That gets triggered (I think) only after the car detects the Bluetooth link (that't show it work on my car, anyways).
  • james27james27 Member Posts: 433
    I programmed the button right next to the LED, rather than the first one to make it easier...I just press to the left of it slightly - works all of the time.
  • jdmassjdmass Member Posts: 14
    I was able to get my Treo650 to work properly with the M35x, but at some risk. Here some details.

    I assume that you have Verizon as a service provider, as do I. Other carriers, such as Sprint, offer 650's that function properly with the Infiniti even though they are not on Infiniti's supported phone list. Palm's implementation of Bluetooth has been widely criticized (just check boards like TreoCentral.com), but, even worse, the version of the firmware on the Verizon version is considerably older than other phones. Palm has corrected a number of bluetooth problems, but Verizon just doesn't seem to release firmware updates as frequently as the other carriers.

    I experienced the behavior you described, but my Verizon 650 phone nows work fully with my M35x because I hacked the phone and created a customized ROM consisting of the Verizon 1.04 firmware overlayed with the Bluetooth components of the Sprint 1.13 firmware. This is a risky procedure in that it is possibly to render the phone useless if something goes wrong. In my case, it worked, and I have full functionality in the car.

    The Treo650 forum on treocentral.com has some threads that discuss ROM customization and there are tools available. Obviously the safer way to deal with this would be to get a Sprint phone, they definitely work with the latest official Palm firmware. I'm not sure of the status of Cingular 650's.
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