2007 S550 Engine Problems
Needless to say, he was surprised to learn I had the correct diagnosis and the balance shaft and timing chain sprocket needs to be replaced. I did acknowledge and credit this forum without you guys I could not keep this car running well.
When I pick the car up in a few days I will review the work completed by the dealer, and post all the specifics on what I learned as far as time to complete, parts replaced and cost.
Fortunately, my warranty is still in effect and no out of pocket expense, but not really happy with the quality MB engineering.
Needless to say, he was surprised to learn I had the correct diagnosis and the balance shaft and timing chain sprocket needs to be replaced. I did acknowledge and credit this forum without you guys I could not keep this car running well.
When I pick the car up in a few days I will review the work completed by the dealer, and post all the specifics on what I learned as far as time to complete, parts replaced and cost.
Fortunately, my warranty is still in effect and no out of pocket expense, but not really happy with the quality MB engineering.
Sport package
Odometer - 55,000 (guestimate, maybe a hair over 54,800).
MB Service Rep, indicated it if was out of warranty the cost of repair would be on the owner. However, I agree, this is clearly a design flaw and qualifies as a defect.
Although, I felt I studied my purchase of this vehicle for several months prior to making it through this forum and a few other sources, I felt blindsided by the notion a defect of this nature would not be covered under a TSB with the cost absorbed by Mercedes and not the owner.
This is likely my first and last purchase of an S-Class, this is not to suggest the car is not a great vehicle in many respects, it is however, discouraging and a major turn off to continually repair this vehicle all the time with issues that anyone can see are quality in workmanship issues.
My prior vehicle was a 2006 Cadillac STS, leased for 4 years, without a single quality issue or design flaw. No, it was not as quiet a ride, or as powerful a vehicle, but in the 4 years and 65,000 miles I put on the vehicle, it never spent a day at the dealership for more than basic service items, brakes, tires, oil change, etc... My S550 has seen the dealership in 1 year more times than the caddy did in 4 years. By my count this is the 6th trip to fix a defective item on this vehicle, next month my warrranty expires.
This list is as follows:
1. Front suspension (ball joint/tie rod)
2. Transmission (would lock up in 1 gear, and go into limp home mode, not fun on a freeway)
3. Power sunroof motor failed
4. Air conditioner (foul odor), replaced entire unit and duct work
5. Wiper washer motor failed
6. Balance shaft / Timing chain sprocket
...................
7. To Be Determined
Last edited by rmajor; Jun 18, 2011 at 08:08 PM.
The Best of Mercedes & AMG
We are in a 2011 E350 as a loaner in the meantime and although it has nearly every option the S-class offers, minus the ride, power and horrible cheap seats, it is nearly as quiet too, but the 550 is the car she prefers aesthetics plays big part of our reasoning, the E-class definitely feels like a step down in her opinion, I disagreed with her.
My next vehicle is likely a 750LI also going to be CPO, the ride and handling are superior, aesthetics are probably a little less than exceptional, but the extended warranty program offered by BMW is up to 5 or 6 years versus the 3 year offered by MBUSA and declined since my auto insurance provides mechanical breakdown insurance.
Thanks in advance!
E-class is not very comfortable, looks great, has the options but the cheap seats are deal breaker, if there is a better seat option than what I have, then I am sure those fortunate souls are glad to have it.
Rick Cell, with your blessing, I copied this from page 1 on from this thread.
Mar 26, 2008
T-B-03.30/09a
Revision: Combination of DTBs, Model 164.186/871, Model 251.165
Equipped with M272 Engine Up to Serial No. 2729..30 468993
or M273 Engine Up to Serial No. 2739..30 088611
Check Engine Light On / Fault Codes FC1200 / FC1208 Stored in ME-SFI Control Unit
Last edited by rmajor; Jun 29, 2011 at 12:16 PM.

My next vehicle is likely a 750LI also going to be CPO, the ride and handling are superior, aesthetics are probably a little less than exceptional, but the extended warranty program offered by BMW is up to 5 or 6 years versus the 3 year offered by MBUSA and declined since my auto insurance provides mechanical breakdown insurance.
Your wife seems to have good judgment in cars anyway.
Last edited by grane; Jul 10, 2011 at 09:27 AM.
Last edited by WEBSRFR; Jul 11, 2011 at 08:39 PM.
2007 mercedes benz s550 base model on tuesday
white on beige color with 141k miles.
the engine serial number is:
273.96130057331
is this car affected by the timing chain sprocket or anything like that? dont want to purchase this car and it turns into a LEMON! or all kind of problems pops up after purchasing it. if someone can help respond asap by monday night at latest i would appreciate. because im flying out from sacramento to purchase the car 9 hours away from home.



How much will that cost you?




