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Mercedes-Benz C-Class Maintenance and Repair

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Comments

  • charlespcharlesp Member Posts: 10
    Thanks tons for bringing me up to speed.

    Dealer here in Las Vegas is Fletcher Jones, with a captive audience. Interestingly enough his operations includes the huge dealership on the West side of Las Vegas, way, way out on Sahara and a maintenance/parts only operation on the East side of the valley out in Henderson, NV. That East side location doesn't even have his name on it, and I have found them to provide rip-off service.

    In comparison, at the dealership operation I have always felt fairly treated.

    Was kind of interesting also last thursday while waiting for my wife's car to be washed and brought down to us, to wander around looking in Maybachs and drooling over a Silver McLaren SLR. Enough to keep your mind off the fact you were waiting for delivery of a car that probably cost less than a front clip for either of them.

    Chuck
  • mezecamezeca Member Posts: 66
    I too was reluctant to reply, and I completely agree with you. I bought my Mercedes because I have always heard how safe they are. And over the years that I've been through the service department, I've either overheard or talked to numerous customers who stated that their Mercedes "saved" their life when they were involved in a serious crash.

    I was actually at the dealership picking up my car when I saw a 211 sedan coming in on a flatbead that had been T-boned. Their was major impact damage, but not very much intrusion to the cabin. I spoke to the driver of the car after she got out of the tow truck, and she said a Dodge Ram pick-up had blown a stop light and hit her as she was going through the intersection. Side air bags deployed, Tele aid made the emergency call, and the driver was shaken but completely uninjured. This tells me alot about the safety about a Mercedes.

    After I was hit in a similar type of accident( Ford bronco blowing a red light into my Honda Accord), the outcome was not so sweet. The driver's door, seat, instrument panel, and me were literally sitting in the middle of the vehicle. I know this from pictures taken at the accident site, and my personal viewing of the vehicle at the impound yard. My collar bone was broken, my ribs on the left side were broken at my sternum, half the teeth on my left side were either broken or shattered, and my spine was described by the physical therapist to have a question mark shape. Two weeks in I.C.U, and a year of physical therapy, in which time I could not sleep in a bed, only on the floor.

    Sorry to ramble, but unless you know what thresholds and limits are built into a vehicle, don't going making assumptions about how a brand of vehicle is of poor quality just because you didn't receive what you "think" should have been the outcome. I am sorry to hear about your injuries, but I don't think that blaming a manufacturer without concrete evidence of defect is just.
  • stramstram Member Posts: 3
    Good Morning ALL,
    My 2004 C230 Kompressor Sport Sedan is OEM equipped with staggered wheels and directional low profile tires. The car tracks straight, although it would drift to left or right depending on the curve of road's surface. In the first 5K miles from delivery, I noticed feather like wear on the outside edge of both front tires. As time goes by, both front tires have worn excessively on the outside edge. At 21,000 miles, the treads on outside edge are gone.
    A four wheel alignment was performed by MB dealer at 14,000 miles; but, the problem did not go away. The service manager at the same MB dealer stated that the way these front tires wear is normal, and the normal wear life is around 18,000 miles. He suggests to dismount the front tires from wheels, and swap them left and right, so that the good tread is now on the outside to take the wear.
    During parking, I have noticed that the right front tire leans into the turn when the steering wheel is turned to the right. The left front tire does the same, leaning into the turn, when turned to the left.
    The rear tires have worn evenly across the width of each tire and still have good tread left.
    I'd appreciate other owners' inputs if they have similar experiences with front tire wear issue, and any suggestion to cure the problem.
    Thanks.
  • jrct9454jrct9454 Member Posts: 2,363
    This area of the car business [tires, wheels, alignment] is a particular obsession of mine. Let me take a crack at answering some of your questions.

    -First, the observation about how the suspension geometry seems to make the wheel assembly "lean" when turned - yep, that's the way it is designed. Most cars have some of this dialed in, but it varies a great deal by make and model.

    -Assuming the alignment was done correctly, I would throw away the front tires and put new ones on the car. The dealer is right about what constitutes reasonable expectations for wear on these ultra low profile Z-rated tires - 20k is a high number. Many people get less. The fact that your rears are still in good shape is a minor miracle.

    -It is precisely because these tires wear faster, and are difficult-to-impossible to rotate, that I avoid staggered sizes and unidirectional tires at all costs. This is also why I tell potential buyers to think twice about the "sporty" C230 over the C240. The ongoing costs of replacing the tires is just part of the price of owning this kind of car. An alternative is to go with standard 16" wheels and 205/55x16 tires all around - wheels can be had for $160-$200 each online - a total switch would be a $1200-$1400 investment, but you would be done with the whole exercise [except rotations, of course] for 40-60k miles. A similar strategy with 17" wheels would be more expensive, with the equivalent tire all around being 215/50x17s or 225/45x17s - there are now some reasonable all-season alternatives out there in the latter size - you don't have to go with a Z-rating or a unidirectional tread. Even if you stick with the staggered sizes, try to find a tread design that is NOT unidirectional, so you can swap them side to side every 5k miles or so.

    -I rotate all 5 tires on our C sedan [I have an alloy spare] every 3500 miles or so. After a careful alignment just after the car was delivered [it had a pull that had to be corrected], the tires are wearing perfectly evenly and are still absolutely smooth and balanced at 17k miles. I estimate total life [these are the Contis - I prefer Michelins] to be at LEAST 60k miles, though for safety reasons I expect to replace them before that [we only put about 7k miles a year on the car]. Your results will vary, as they say, but even with perfect care and conservative driving, the OEM tires on a C230 Sport are likely to be long gone at 20k miles. Think about the alternatives I've outlined above.

    -Again, assuming the alignment was done correctly, and you are not getting any other untoward symptoms [pulling to either side on a flat, unbiased surface], I would ascribe the outside edge wear on the fronts first to the possibility that the toe-in was slightly off when the car was delivered, and secondarily to the fact that some tread designs are going to feather a little no matter what you do - this is why rotation is so important, and why I am so down on staggered, unidirectional tires.

    Let us know what you decide, and how it seems to affect the car - I personally don't think the extra handling margin that the staggered setup gives you is worth anywhere near the price that has to be paid, but to each their own. If you want to go with 4 equal width wheels all around, many dealers have takeoffs that can be had for a reasonable price, or there are numerous online sources.
  • rickfred38rickfred38 Member Posts: 1
    I notice a knocking noise during idle time from start up to switch off always. I have only had my 98 C230 for 5 mos. This has been on going for a while, but the car just had an oil change and wiper replacement at an MB dealer wouldn't they have made recommendations? Is this sound normal or am I headed for something big? Help nervous new owner.
  • jamesbond1jamesbond1 Member Posts: 7
    Good day
    I own a MBZ 320/01 i have the same problem, could you tell me if you find a solution?
  • diazaldiazal Member Posts: 1
    hi all...can anyone aide me with the 2 following issues i am having....sometimes my turn signals will not work, and the wiper also is affected ..the first wiper setting will fail but the other settings will work...when i turn the signal..nothing flashes on the dash and the lights do not flash outside either.....this does not happen all the time ...sometimes it goes away quickly and sometimes it lingers and sometimes it just works perfectly...any clues as to what it could be ?
    second issue..recently had a strange humming and vibration that i could feel on the driver side and it seems from the front...left obviously...sometimes it lingers and goes away quick or sometimes not....it does not affect pickup, gears etc...it does seem to stop totally if i put the car in neutral..but the transmission does not jerk or slip otherwise when i am driving....i can feel the vibration of the humming....any clues ? thanks !
  • jamesbond1jamesbond1 Member Posts: 7
    I have the same problem with my C320 could you tell me how much it does cost replce the SAM control module
  • jamesbond1jamesbond1 Member Posts: 7
    My C320 has the same problem I replced the airflow meter and still the same so the dealer change for a new one and now is fine, the problem was a defective spare part. Check again with another flowmeter
  • suryasurya Member Posts: 1
    i have the same problem.. if you find anything please let me know

    thnks!!
  • amohraamohra Member Posts: 7
    It was covered under warranty.
    Good Luck,
  • trumpnjtrumpnj Member Posts: 2
    im having a similar problem with my battery. I went away for 6 days and came back to a completey dead battery. I recharged it and it was fine for a month but today the car wouldnt start. Has anybody been able to fix this battery problem or knows whats causing the drain?
  • mbenzc230kmbenzc230k Member Posts: 5
    My 2002 C230 Kompressor Sport Coupe with 8080 miles made what sounded like a ventilation flap opening/closing during startup. There were 8 repetitions every time the car was started and it didn't matter whether the A/C was on or off nor what position the air vents were set to. The sound emanated from under the dash, behind the center console. The A/C system seemed to work fine during that time. The problem sounded almost similar to what you have experienced.

    The malfunction was fixed under warranty where a stepper motor was replaced and linkages adjusted.
  • stramstram Member Posts: 3
    Hi jrct9454,
    Thanks so much for your detailed explanation and suggestions.
    I am contemplating the option of replacing the staggered configuration and low profile uni-directional tires with same size of wheels and regular tires all around.
    Your information on wheel size and tire size helps me a lot what to look for as I go shopping (on-line).
    Thanks again.
  • mbz66mbz66 Member Posts: 9
    There is a persistent buzzing noise somewhere in front of driver side, at speed range 20 to 35 MPH, on coarse surface road, but not bumpy road. The similar buzzing noise becomes louder when the car goes over those white cup lane markers on freeway, during lane change at 60 to 65 MPH.

    The dealer has worked on it several times - replaced the stepper motor (in first visit), open and inspected the airbag in steering wheel (2nd visit), pulled the instrument cluster and inspected (3rd visit), tightened the steering lock device to steering column with plastic tie wrap (4th visit). The noise issue did not go away, as confirmed by test drive with dealer rep.

    A second issue is strong odor coming from the front air vents. It is an intermiten one, which usually occurs after shutting off the A/C. However, with A/C being ON, there have been no odor problem.

    The dealer stated that they had cleaned the system, but we are not sure what they really did. The same odor occurred again the next day after the issue had been supposedly worked on.

    Both issues will be looked at again, next time the car is in for FSS appointment.

    We'd appreciate feedback from readers who may have similar experience. Thanks.
  • lmadenlmaden Member Posts: 2
    My wife was driving our C280 when the Air-Condition just stopped blowing Cold Air, Could please give me some possible causes.

    Thanks
  • flyingfoxoneflyingfoxone Member Posts: 12
    Our '01 C320 is currently into the dealer for a Service B plus "clicking under the dash upon startup," just as you have. They said it was a stepper motor in the HVAC (air conditioning ducting); they are fixing it under warranty.

    The second problem is that the up/down motor to position the steering wheel has become disconnected somehow. The motor whirs; the wheel she no move. They say it's a broken coupling, which is NOT covered by warranty! It's something like a $3 part, but it takes 3.5 hours to get to it! The estimate is over $300 to fix this! My copy of the warranty is in the car (in the shop) so I haven't tried to argue about it yet.

    Incidentally, this is our first service out of the 50,000 mile "free service & warranty" period, although we did purchase the M-B warranty extension to 100,000. At 61,000 miles, we have spent exactly $0.00 total so far, plus gas and tires. We can't really complain.
  • psb1psb1 Member Posts: 1
    I have never researched an MB or ever considered one to be in my price range but this model is. I am thinking about an '02 and I'd like to have opinions about the cost of maintenance and any specific problems that anyone knows about. Would you recommend or not? Pros and cons? Also, I typically wouldn't want to buy a car with over 30k miles, but would it be OK to push that higher with this MB?

    I am mostly looking for comfort and safety with as much luxery as I can get in the low $20's price range. However, I hate dealing with car problems and don't want to buy something that will have alot of them and at a high price. Any feedback would be appreciated!

    Thanks!
  • jrct9454jrct9454 Member Posts: 2,363
    We own an '02 C240 sedan that was built in Jan of 2002, first sold in September, and now has about 17k miles. The car had a wheel alignment issue that I noticed on the initial test drive, and was corrected a couple of days after delivery; it had been stored for awhile on a dirt lot, and the differential vent had become plugged, which resulted in a minor leak that was easily taken care of. Knocking on wood, that has been the sum of it so far. This car is our 14th Mercedes, and 53rd car overall since 1962, so I have a lot of experience with everything from Japan and Germany.

    There are simply no generalizations that work right now with the W203 Cs - some cars, like ours, have been no problem, and others have been disasters. I will say this: I went out of my way to avoid the options I knew were causing problems - memory seats, CD changers, the Nav system [MB calls theirs COMAND].

    A lot of people like to dis the C240 as not being powerful enough - I think this is utter nonsense, but then I grew up with diesels and econo cars, so 0-60 in the 8 second range seems more than quick enough to me. We absolutely love this car on long trips - smooth, quiet, 26-29 mpg, great ride, and extremely competent brakes. And yes, our car is probably worth no more than about $19-20k wholesale right now, in pristine condition, which translates to $21-$24k at retail, depending. All of the cars through the '04 model year include the prepaid maintenance; if you can find a car with the factory extended warranty [ours goes to 7 years or 100k miles], that is a big bonus.

    As for miles, look for the lowest mileage car you can find - always. Pay a little more if necessary.

    Things to watch out for - make sure the maintenance records are complete and timely; avoid the doo-dad electronic add-ons, especially the memory seats/ steering column option. Carefully inspect the condition of the wheels and tires - people neglect these wheels for mysterious reasons, and they are extremely expensive to replace. [All the usual German brake dust tempts people to let the wheels get and stay cruddy - a very bad decision.]

    I don't know what else to say, except make sure any car gets a thorough inspection from somebody familiar with the various W203 models and their problem history - someone who knows what to look for and can satisfy you that you're not taking on a problem child.

    I would be remiss by not mentioning that an equivalent year BMW 3er is also a car you should look at, allowing for the fact that they will generally be more expensive. That car is smaller in the cabin and much tighter in the trunk, and doesn't ride as well, and is a bit noisier; generally, though, with a couple of famous exceptions [the cooling fan fiasco comes to mind], they've been slightly more reliable than the C - not nearly as much as BMW dealers would like you to believe [ I belong to both owner clubs, so I get all the dirt from both sides] - they too have their share of electrical problems and other famous or infamous annoyances. In general, these cars will never be Toyota reliable, but they ride and handle in a way that no Toyota [except the LS, in my opinion] can quite match.
  • kravchenkokravchenko Member Posts: 5
    After five visits to a local MB dealership, same problem. They replaced fuel filter, cleaned everything that could be cleaned, did not help. Have you had any luck?

    Thanks!
  • mezecamezeca Member Posts: 66
    What do you mean by "starts hard"? Do you mean that it cranks over for a while before
    firing up? Or do you mean that when starting it cold, it runs rough?
  • ismile2ismile2 Member Posts: 1
    Hi,

    About 3 months ago I became the owner of a 98 C230 w/ 82k. Should I be worried about potential problems with my venicle. Right now the car drives like a dream... no weird noises or anything but seeing that it has sooo many miles I was beginning to get worried. Should I be worried and if so, about what?

    Thanks!
    iSmile2
  • kravchenkokravchenko Member Posts: 5
    I mean, it cranks and cranks and cranks, and then some cylinders (but not all four) start to catch up and the car shakes and rattles, and eventually the engine starts, in 5 or 10 seconds. It is pretty discouraging... Last time I had a similar problem with a 20 years old Soviet made car that I was unfortunate enough to drive when I lived in England. Never after did I experience anything like that, not even with 1985 Dodge 600.
  • helpme6helpme6 Member Posts: 1
    I have a 95 c280 that acts like it is running out of gas. One minute it is purring like a kitten running 80, the next it bogs down and dies. I sit beside the road crank it, it sputters, cuts off, repeat the process for five minutes or so, then it will take off again. Changed fuel filter, ran a fuel injector cleaner and a water remover through, no luck. Any ideas?? :sick:
  • ruqqayahruqqayah Member Posts: 1
    Hi

    I'm having the same problem with my wagon.

    what info. did you find out about this problem?

    please respond.
  • zondervanc240zondervanc240 Member Posts: 1
    I just bought a pre-owned 2003 C240 and it didnt come with the manual. I want to be able to program the three homelink buttons under my rear view mirror and cant find the way to do it. My garage door opener is SEARS brand 1/2 HP with remotes. I lost the remotes but would like to program the homelink buttons on my rear view mirror. Can someone help me ? Might someone be able to fax me or by email the page in the manual that explains how to program the Homelink buttons ?

    Val :confuse:
  • tomotomotomotomo Member Posts: 57
    I owned a 95 C280 and the fuel pump failed at about 45000 miles while going down the highway at 70 mph. It behaved just as though I turned the ignition switch OFF. No warning or any other misbehavior, the engine just died! MB picked up the car about 75 miles South of Dallas and took it to their dealer, Parkway Motors, in Dallas and replaced the fuel pump the next day. The car was out of warranty and it cost me approximately $700. including the wrecker fee of about $80. Good Luck.
  • dwrightdwright Member Posts: 1
    I'm also having similar problem with the air conditioner on my C230. Would appreciate learning of these causes as well. Thanks.
  • seaudio123seaudio123 Member Posts: 4
    I own a 1999 C220 CDI T model. There are no controls on the steering wheel and I want to reset the service wrench. I tried the method of selecting the wrench with the bottom button on the left of the dash, held it down until it cleared. On restart it appeared again with the same -1000KM message. Any ideas?
  • seaudio123seaudio123 Member Posts: 4
    C220 CDI T 1999.
    Any ideas. I have a rattle outside, under the car, it sounds likie its near the middle or toward the front of the car. It is only heard when going over a bump. Smooth roads not rattle. It's easiest heard at slower speeds.
  • mcd3mcd3 Member Posts: 3
    I am experiencing the foul odor coming from my 2004 C240. My car has been in the shop 8 times and Mercedes Benz is unable to correct the problem. The odor comes from the evaporator in the air conditioner. Water collects in the evaporator and does not drain, which in turn causes mildew to grow. This problem is not correctable because the air-conditioner in this car does not have a rest button which can dry the evaporator and prevent mildew from growing. This issue will not end and will still exist after 8 treatments.
    If the car is still under the original manufactures warranty consider the :lemon: law.

    Please feel free to email me with further questions.
  • jamesbond1jamesbond1 Member Posts: 7
    Hi you may go to www.mbusa.com there you will find owners club and download the MBZ manual you want.
  • dom63ukdom63uk Member Posts: 1
    i have no power when i drive my c 270 cdi this morning i got in it and there was no power could it be turbo please someone help
  • jrct9454jrct9454 Member Posts: 2,363
    More likely a fuel supply problem. Fuel filter? Injection pump? Fuel pump? A failed turbo is a very long shot - not impossible, but highly unlikely.
  • vdavidvdavid Member Posts: 2
    My wife sometimes has the same problem with her stereo shutting down with her 2005 230 Kompressor. Except, sometimes it won't come back on for days at a time. This started the very fist month she got the car! The dealer has changed just about every component in the system and is now looking to install a second "special" amp. My wife is considering to have them re-purchase the car under the california lemon Law since it has been a year without change. What have you done to remedy your situation?
  • vdavidvdavid Member Posts: 2
    My wife's stereo sometimes shuts down unexpectedly or won't come on after the car is restarted. Sometimes it won't come back on for days at a time. This started the very fist month she got the car! The dealer has changed just about every component in the system and is now looking to install a second "special" amp modified by the company after we made comtact with the MBUSA. My wife has made a total of 12 visits of the past year for this issue. She is now considering to have them re-purchase the car under the california lemon Law since it has been a year without change which is unfortunate because she loves the car. Is their anyone out there that has had this issue? Can anyone provide some advice?
  • amohraamohra Member Posts: 7
    The Passenger Airbag Off light stays on a few seconds after starting the car and goes off (light is off) even no one sits on the passenger seat. I have driven loaner C230 and the light stays on when the seat is empty. Dealer says that MB-USA claims that my car was built early (May 2004 construction date) and does not have WSS (weight sensing system). It's a little hard to believe that MB just added this WSS later, when the Passenger Airbag OFF indicator is installed on the dashboard just for that purpose to warn that passenger airbag is not active.
    Any advice
  • jrct9454jrct9454 Member Posts: 2,363
    ...is that our '02 C240 does not show an airbag light if the passenger seat is empty.

    The actual SENSING system has always been there, and the bag will not deploy if there is no one in the seat [so it says for our car, anyway] - but the light doesn't stay lit, which is just as well as far as I'm concerned...I'd find it annoying, I think.
  • mbz66mbz66 Member Posts: 9
    Hi mcd3,

    It is interesting to learn of the cause of foul odor coming from the air vents, due to water collected and not drained from the evaporator, and the problem being not correctable.

    Please bear with my ignorant, what is rest button? Do they make this button available to other models, such as the E and S classes.

    Thanks for the information. I'll contact the dealer after this holiday.

    Regards
  • eurotrashboyeurotrashboy Member Posts: 1
    Sometimes my water temp will go up to 110 degrees celsius. It doesn't stay there for long and usually goes back to 100 C. Is this a major issue? I've had the coolant changed for arizona.
  • krhodeskrhodes Member Posts: 1
    7-11-05 while pulling my 2001 CLK450 into a parking place, with my foot on the brake, it suddenly accelerated, plunging my car down a very steep 25 foot embankment into a river. I've owned the car 4 months. It has 30,000 miles. According to carfacs I am the 4th owner. It was previously damaged in the right rear quarter panel. The day before the accident, the fuel gauge started malfunctioning. Could that have indicated the computer was having trouble? If the brakes worked after the accident would that rule out that there had been an acceleration problem caused by the computer? The car is fixable and I was not seriously injured. It luckily did not roll. However, I am worried about driving it again if the computer can cause a malfunction.
  • mcd3mcd3 Member Posts: 3
    The rest button is available only on E and S class models. This button turns the fan on which in turn will dry out the evaporator. The C class ariconditioning system does not have this feature.

    Good luck.
  • isitjunkisitjunk Member Posts: 1
    :sick: Curious if anyone has noticed the 2005 C230K sedan smoking when started??? Purchased car for wife Feb. '05 as I couldn't talk her into the BMW..oh well..still like the looks of this vs. beemer. Anyway I noticed when she leaves for wk after car sits I watch what appears to be black/light grey smoke from rear exhaust. This occurs under boost and smokes till I can no longer see veh. Yes nothing but high test branded gas since new and not condensation smoke as this is anytime of day on east coast of SC 85+ daily temp..I advised the dealer (FM..what a joke) of this when 1 service of 2k miles & and as I figured would not be addressed...all is good w/car per them. Before I go back I wanted to poll any other owners of this veh. that may have noticed this or may need to be aware of this.I have been in the collision & insurance industry for 20 years so I not a rookie as the dealer may think.
  • paul_ppaul_p Member Posts: 271
    Well with 20k miles on my Y2K C230 I have to agree. With the most careful driving over the years, all 4 tires are now down to 3/32 tread, and feathered on one edge (alignment was probably off from the factory). I still have to say this car mechanically is awesome, as I have not had any breakdowns save for the fuel sensors in the tank failing due to gasoline sulphur content.

    So before the tires wear fully to 2/32, I am planning on purchasing new tires and getting the front wheels aligned. Current tires are ContiSportContacts, 205/55 R16 91H with a treadwear rating of 280.

    What's the best alternative where I can get the maximum amount of wear from a low profile tire - or are those two things a contradiction in terms? My wife is the main driver of this car now, and neither of us are concerned with the "sportiness" of the ride - as we never drive the car fast or erratically. Our main concerns are safety, smooth ride (no vibrations), and longevity of the tires - in that order.

    Any advice you can give in this regard will be greatly appreciated.
  • zmerzynzmerzyn Member Posts: 1
    Does anybody has a problem with power seat operation. Both driver and passenger seat controls do not operate. They came back online few times and died few minutes later.. Back window sun shade stoped working as well. Anybody has an idea what is going on or how to fix it any help is appreciated.
  • jrct9454jrct9454 Member Posts: 2,363
    Firstly, the wheel alignment has to be on all four wheels, not just the front. And get it done by someone [either the dealer or an independent] who is an MB specialist. The first time the alignment is done, it requres a small parts kit to make the camber and caster fully adjustable, which has to come from the dealer anyway. [Or did you say the alignment had already been done once? I forget...]

    As for tires, the 205/55-16s are the same size on the "cooking" [non-sport] C240 we drive, so they are hardly radical. For some reason, in the original post, I thought we were talking about a W203 C, which uses 17" wheels and 40/45 profile tires; yours is a W202 C, and the 16" wheels use the same size as the touring models of the W203.

    While expensive, my first recommedation for this car is always Michelin - the MXV4 is OEM on this car for a good reason. Our car's Conti CH95s have been quite satisfactory, and are far cheaper, and they promise to go at least 50k miles, but their ride and noise characteristics will not quite match the Michelins. Goodyear makes a new tire [Assurance?] that is supposed to set new standards for quiet and ride quality, but I have never been enthused about their products in the past - you might check the Tire Rack's website for their reactions.

    If you go to Tire Rack online, enter the size, and tell them how you drive the car, they make recommendations based on your inputs. They also have ratings from customers on how the tires behave in the real world on other cars. Or call their toll-free number and talk to one of the reps.

    The OEM "non-sport" wheels/tires for your car are 195/65-15s - you can configure a new package of wheels and tires on Tire Rack's site that could get you new wheels and tires for not much more than the tires alone....just another alternative...
  • jrct9454jrct9454 Member Posts: 2,363
    My first reaction would be to check the fuses, but my experience is these mysterious electrical gremlins are usually related to the central bus system that MB uses to control the electronic functions in the car. A fuse is cheap and relatively easy to take care of, though there are three different fuse boxes, and the diagram is tucked away in the one on the left side of the dash - you have to have the driver's door open to access it, and have to be careful not to damage the dash when opening it.

    Our horn mysteriously stopped working last month; I dutifully checked the fuse, reseated it, but nothing happened. Then about 4 days later, it worked again and has worked fine since. There are so many connections and routing points with the electronics, that it is impossible to diagnose anything just looking at something in your garage, besides fuses. After that, you have to get yourself to someplace that has the testing tools to see where the interruption is. Anyway, try the fuses first, and check the diagram to see if the functions that are failing are covered by a common circuit.

    As an aside, I'll mention that the fuse diagram is a Generic-English [not American English] translation from the German, so there are some anomalies. The horn, for example, was actually labeled something like "clarion" or words to that effect...
  • paul_ppaul_p Member Posts: 271
    jrct9454,

    Thank you very much for your info. Sorry for not mentioning that my tires are indeed smaller than those mentioned in the original post.

    Since buying the C230 new I have not had the wheels aligned, and will indeed bring it to the dealer for that service. I'll also ensure they use the proper kit you mention.

    Your Conti CH95s sound very interesting to me. I will check into those further, and very much appreciate your comments - your knowledge is incredibly helpful to me!

    I would drive the C230 more often, but my daily driver Toyota pickup (now with 213k miles) continues to show no significant signs of age, except I'll eventually need to replace the windshield due to the pitting.

    - PaulP
  • mezecamezeca Member Posts: 66
    Depending on which system you have; weight sensing or seat recognition sensor, the light will react differently. If you have the seat recognition sensor, the light will go on and then turn off after a few seconds.

    The weight sensing seat is just the opposite, it will illuminate all the time when no one is sitting in the front passenger seat.

    Keep in mind, airbag "off" light on the seat recognition sensor is to let you know that the airbag is turned off when you have seat recognition style baby seat in the front. It basically confirms to you that the airbag has been defeated.

    The weight sensing system does just what it says and can tell the difference between a child and different size adults. It does this for airbag deployment thresholds, something the seat recognition sensor could not do.

    I hope this helps!
  • paul_ppaul_p Member Posts: 271
    I recently took off right side wheels, one at a time, to clean the back side of them. The right two wheels came off and wenty back on just fine (and torqued to 80 ft. lbs.) But when I tried to remove the driver's side front wheel, even though I took off all 5 lug bolts, I could not get the wheel off the axle. Wheels are stock aluminum for a 2000 C230 Sport.

    I put the lug bolts back on and gave up, rather than risk damaging the car by trying to force the wheel off by prying, hitting, etc. My next step is to take it to the dealer when I get the tires replaced this fall. But if I had to (i.e., if I had a flat tire and MB roadside assistance could not get to me), what could I do to get the wheel to come off safely, without damaging me or the car?
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