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Mercedes-Benz C-Class Care and Maintenance



  • Good information; I'm going to hang onto mine for the foreseeable future!
  • lxgmblxgmb Posts: 41
    It worked about 1 month ago. I don't think it freezes. It is 52F now outside. Any ideas?
  • jrct9454jrct9454 Posts: 2,363
    ... a look and listen at the reservoir will give you a clue. Someone needs to listen at the same time you try to use the system - if you can hear the pump humming, the pump is probably flawed or plugged. If you hear nothing, it could be the pump, or it could be the relevant fuse. And without sounding flip, the reservoir is topped up, we can assume?
  • mbowner1mbowner1 Posts: 2
    I just purchased a C230K about a month ago. My dealer said to use 89 in the summer and 87 in the winter, unless you live at sea level. Then it is necessary to use 91 octane. I live about 2000 from sea level and use 89 and it runs fine on that.

    Hope this helps.
  • paul_ppaul_p Posts: 271
    I plan on keeping my '00 C230 10 to 15 years, and it gets nothing but premium. In '95 I believe it used to state the requirement "Premium Unleaded Fuel Only" right on the instrument cluster.

    I believe the label on my fuel filler door (and certainly in the Operator's Manual) still says to use "Premium Unleaded Fuel Only."

      - P.
  • jrct9454jrct9454 Posts: 2,363
    ...the octane requirement is proportionally reduced, and in some markets, you can't GET 91 octane fuel. HOWEVER, regardless of temp and altitude, you should be using the highest octane available if it is lower than 91.
  • mb240slkmb240slk Posts: 3
    hey Ive got 01 c240 glacier white java interior. Had lots of problems I'm now on my 4th set of keys. My drivers seat edge the seam was ripping they fixed that. my cars been in mb service for over a week I'm driving a huyundai accent. They have figured out its the command center but thay have technical support helping. Everytime they get it all cleared and then run the system all the warning lights for ie esp engine light etc..
    So I'm curious to see what they do. Has anyone else had problems?
  • I have a 1999 c280 with 64500 miles. The engine warning light indicator comes frequently. I have replaced the gas cap which didn't help. I visited dealer who informed me that a diagnostic had to be performed at $150.00. Is there a "reset switch" on the engine. I had one on my Lexus. What could this problem be? Any suggestions
  • hello,

    i had an older benz (87 300E) and i was always told to put a min octane rating of 91 in it. so i continued to do so.

    however, i just bought another benz (97 C280) and while talking about gas, he said that even though it states "Premium Unleaded Fuel Only" on the dash board, that's essentially a German thing. 89 Octane gas IS premium fuel in Germany and throughout the rest of Europe as well.

    Thus, i was told to not bother paying the higher price for what we here refer to as "premium"... consider the German's definition of "premium" as 89 Octane.

    In fact, and surprisingly enough, my mileage actually increased. i've gone 425 mi (680 km) before the fuel light even came on. never made it that far on 91 Octane.

    So, yes, 89 is fine (already confirmed this with the local Benz dealer) and you won't damage any of the fuel system components or give up horsepower or any other performance.

    hope this helps.

    good luck!
  • the best advice (although not the cheapest) is to go ahead and let them run the diagnostic test. that single warning light will come on for many reasons. it could be a single sensor is going bad (i.e. coolant temp sensor, etc.) or it could also indicate a problem such as a failing fuel injector or too many other possibilities to count.

    It's really a bad setup when you have an indicator light on but have no idea of the system to which the problem pertains. but, in most cases, that multi-function warning indicator is saying there is something minor that needs to be corrected. thus, the diagnostic testing fee is the most expensive part of the whole deal, in most cases. and you cannot reset the warning light without the dealer attaching the computer and resetting the system that has an error.

    in my own experiences, it has always been some sort of sensor or electrical switch that weren't working at 100%... cheap to replace... besides the testing fee.

    good luck!
  • jrct9454jrct9454 Posts: 2,363
    I'm sorry, but it is absolute nonsense that "89 octane fuel is the same as 'premium' in Europe".
    In fact, the exact opposite is the case - the best motor fuel in Europe has higher octane than the most common [91 avg] available here.

    Look, this is not religion, you can do whatever you want, but there are good, sound, technical reasons why MB specifies a min 91 octane fuel for this car. Using a lower octane has two effects, neither of them good: the engine computer will retard the timing to compensate, and that in turn has several negative consequences: higher fuel consumption, less power, and over the long pull, the chance for heat-related problems [using up spark plugs sooner, for example]. It's just false economy to drop 2 octane points in return for 10 cents a gallon.

    Running this car requires certain expenses be borne - this is one of them.
  • I am looking at buying a used car. A 1996 C-220 with only 47k miles had its engine warning lights on when I test-drove it. The salesman (it was a used car lot that specialized in European cars, but not specifically MB) said it was common for cars that sat for a while to do that, but when I asked him when it came in, he said, "oh, five days ago." So, this sounded fishy to me.

    Anyway, should this trigger a warning light in my head or is the car a pretty safe bet? It would be my first MB, but not my first euro car (that would be an Audi A4 four years ago).

    Thanks in advance,
  • jrct9454jrct9454 Posts: 2,363
    ...about this car.


    If this car were a legitimate contender, it would have been bought at the auction by a Mercedes dealer, and sold as a Certified car. The miles on this car would make any dealer salivate, if they are legit and the car has no serious problems. My advice is to walk away, no matter how attractive the car sounds. At the very least, it needs a complete, top-to-bottom inspection by an authorized MB technician, including a full explanation of the warning lights.

    Sorry I can't be more supportive - this smells bad, even over the internet....
  • Thanks, for the fast reply. I am new here on Edmunds and appreciate the frank discussions I've read so far :-)

    It seems to me that if it were a trade-in, it might not get to the dealer network. Could that explain this possible gem?

    Anyway, there are lots of great cars on the market. I will continue looking and if this one is still around in a few days, I will ask the sales guy(s) if we could have it checked out first.

    Best regards,
  • jrct9454jrct9454 Posts: 2,363 legitimate dealer is going to tell you to drive the car away with warning lights on.

    In any case, no matter where the car came from, I simply would never buy a newer MB without complete service records...OR...a bulletproof, comprehensive or the other is a requirement, unless you yourself are a skilled mechanic.
  • rlmrlm Posts: 1
    Good to hear, I just bought a 2000 C280 with 34K miles for 19K, excellent condition. Unfortunately, not from MBZ, so no warranty, should I get extended?????
  • tmay2tmay2 Posts: 1
    My 2000 c230 has close to 50K on it. Over the past few weeks the little wrench light comes on with a mileage count down number...

    My guess is that this would mean scheduled maintenance is due. Has anyone seen this before? I could just go to the dealer, but I'd at least like to know what the light really means first...

  • jrct9454jrct9454 Posts: 2,363
    Exactly what you think it means....time left before servicing.
  • knutknut Posts: 1
    I had a 1997 Mercedes C230 which had the engine light come on. 660 Dollars later I decided to trade in the car for a new 2005 Mercedes C240 4matic.
    I advise everyone not to buy a C-Class out of warranty.Even I tried GOOD WILL request no chance.
    I like the C-Class as long as it is under guarantee
  • tizertizer Posts: 23
    Has anyone had any experiences with getting an oil change for a 2001 c class at a Expressway franchise? My C240 will need a B service soon and the dealer quoted around $350! Now that the car is 4 years old with 65,000 miles and out of warranty a $70 expressway oil change is attractive. Expressway said they can do it but with no drain plug and dipstick I am apprehensive about letting them near this car.
    Overall this has been a solid reliable car, I had some niggles the first 18 months but all taken car of under warranty.
  • postoakpostoak Posts: 537
    wouldn't let them touch my car. Places like that screw up even simpler jobs than *this*. Besides, for $350 I'll bet you are getting more than just an oil change. I would price this out at a Mercedes-only independent garage. (Or consider buying the equipment to do oil changes myself.)
  • jrct9454jrct9454 Posts: 2,363
    Yeah, my reaction is the same. Do not turn any modern MB [or BMW or Audi or Lexus, or...] over to one of these places. It's better to find a reasonable independent MB mechanic. And also as noted above, $350 for a B service is not crazy at all...if you're not a do-it-yourself person, you must allow some $ every year to keep these kinds of cars going. Low cost of upkeep is not one of their virtues.
  • tizertizer Posts: 23
    Thanks for the very true advise that I will heed. I do know a good independent MB Mechanic, the only inconvenience is droping off the car for the day, but I think it will be worth it. Certainly an MB does not run on a Civic Budget!
  • rrrroverrrrrover Posts: 1
    Did you ever get any good information on whether one can use anything less than premium gasoline? I just bought a 1998 C230 and am wondering if I could use something less than premium.
  • Curious,
    has anyone purchased an extended warranty from their dealer. Dealer has recommended one and the literature it appears very comprehensive.
    Thanks in advance for any help.
  • melomelo Posts: 2
    I am also thinking of getting an extended warranty. I just purchased my first benz (C240-2001) and the 4 year warranty is expiring in 3 weeks. I don't know what to do. Any recommendations? The car was inspected by a benz dealer and does not have any problem at all. I just find Cn$2,300 for an extra 3 year a little too much. Please send your opinion.
  • melomelo Posts: 2
    The info I got from a benz dealer in Toronto is that this car uses an european syntetic oil good for 15,000 Km. I am facing the same situation: My C240 2001 also requires a B service but I don't trust a regular shop to do that. Don't forget that this car takes 7 to 8 litres every oil change.
  • c2801996c2801996 Posts: 2
    I bought a 1996 C280 sport last year. It had about 70K then and close to 90K now. It's my first MB and I love it. I have brought it into the shop a few times. Only big expsenses were far. Although, I did purchase the starmark warranty so I didn't incur any charges when the engine light came on (twice over a little more than a year)
  • c2801996c2801996 Posts: 2
    My 1996 C280 has a Starmark warranty that will be up in 10K. I'm thinking about having the car looked over for any potential problems, then bring it to the dealer and ask them to fix them while it's covered under the warranty.

    Does this make any sense? Does anyone have any suggestions regarding where I should bring it to be inspected (e.g. another dealer, some MB specialist?)

    Or, should I be looking to tade in or sell the car?
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