New transmission on 2007 S550 with 68,000 miles???
My service writer called me today to inform me that my car needed a whole new transmission, torque converter, and fluid flush with a total cost of $6,500. He said that the transmission fluid was like "sludge". Apparently, there is no record that the car's transmission was serviced at the recommended 39,000 miles. I purchased the car as a certified pre-owned car in 2010 with 46,000 miles, so the transmission should have been serviced prior to my purchase. The paperwork that I received when I purchased the car states that the next service was due at 56,000 miles. The car had an extended warranty when I purchased it, but that has since expired, so it is no longer under warranty.
I have been up to date on all my services since owning the car. I asked the service writer why a transmission fluid service was never recommended to me during one of the services. He explained that the w221 transmission does not have a dip stick, so during routine services, the transmission fluid is not checked. He said that the transmission is just serviced every 40,000 miles.
I do not feel that I should be held responsible to pay $6,500 to fix this problem. The dealer from which I purchased the car from was negligent since they did not service the transmission before selling me the car as a certified pre-owned model. I am also not sure if I believe the service writier's explanation that the transmission fluid cannot be checked during routine services.
I called mercedes customer care and opened a case today. They said they will get back to me within 24 hours. I would greatly appreciate any advice on what I else I should/can do to avoid paying this hefty bill for Mercedes negligence. Thanks in advance.
It would only be fair that MB pays the cost for the repairs, as long as the dealer that you purchased the car from was a MB dealer. Even if the dealer you purchased the car from is not standing behind the matter, then I would think that MB should pay any cost associated with the repair (including a rental) at a MB dealer of your choice.
keep us informed and good luck.
I got a call from the case manager handling my claim and he informed me that Mercedes Benz of Encino, CA, which is the dealership I purchased the car from, refuses to assist in anyway. They claim that they did the transmission service, even though the service writer in Mercedes of Oakland, CA says there is no record of that. The case manager also said that Mercedes Corp will not be able to assist in the matter. So I am stuck with the bill. of $6500.
Does anybody have any advice or connections within Mercedes Benz to help me?
I am very disappointed with Mercedes Benz. When I spent a large sum of money to buy a CPO S550, I thought I was getting a reliable, luxury car. I thought CPO meant that Mercedes would ensure that all the required services were done. Obviously this was not the case. Although Mercedes Benz of Encino contends it serviced the transmission, there is still the likelihood that they did not since it does not show in the records. The reliability that is promised with a CPO is fake.
This is the worst customer service that I have ever received. For one, the case manager is supposed to be a consumer advocate, but he did not helped me at all. Furthermore, for Mercedes not to stand behind their product and to take the stand that if you purchase a Certified Pre-Owned Mercedes, you should expect the transmission to fail and it should not be a surprise is quite discouraging. Who would want to buy a car for over $100k that has such poor quality and low expectations???
So I am considering taking Mercedes Benz to small claims court. What do you guys think?
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There are no other prove for that dealer that he did the service,that is why nobody uses the book with stamps anymore because every service is recorded .
Also small claims court is not the way to go because currently they don't owe you any money.You need to consult an attorney and take them to court
Last edited by ulflei; Sep 7, 2012 at 09:14 AM.
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That leaves you in an unenviable position. Manufacturers rarely make policy adjustments on vehicles that were sold used under certification programs once that extended warranty is expired. Were you the original owner out of warranty, you would have a much better chance that Mercedes would make a goodwill gesture.
The car is 18,000 miles out of warranty and most likely at least two years. They extended the warranty once as a marketing tool to support used car values. Most manufacturers, in my experience, wash their hands of any liability to subsequent owners after that extended period. Isn't what you want to hear but common in the industry.
I also have a 2007 s550 CPO...I paid to have the service flush/fill on the tranny myself because the dealer I receive service from said that it did not appear that it was done for the CPO checkout at the other dealer, so luckily I have not had issues. However, lots of people have problems with these transmissions.
Even though I agree with many folks about the lawyer and court, from experience, I think you would not win and would likely suffer an awful lot of frustration and lost-time on that route....MB fights these types of things all the time, so they know the game better than the rest of us....just my 2 cents.
One thing to investigate some more....you say "a whole new transmission, torque converter, and fluid flush" is what the dealer wants to do....I would talk to the owner of the dealership or at least service manager at the dealer....I don't understand the need for a flush if the tranny and torque converter are being replaced...all the fluid is being thrown away with the old units...there is a cooling loop along the radiator...but the amount of fluid there (and any flushing req'd threof ) shouldn't even be a charged service with 100% new fluid in a new tranny/torque converter...this seems a bit much...worth exploring anyway....also, just ask for a discount given the circumstances and the fact that you have your car serviced there all the time....parts at cost, 10% off...whatever...worth asking the boss, eh?
I would also get some "second opinions" or alternate quotations from a couple more dealers and/or independent repair shops....in this economy, they will compete for your business...and for $6500...its worth some time....
Good luck...please post the final outcome so we can all learn from this!
Last edited by new550; Sep 8, 2012 at 04:59 PM. Reason: typo
That leaves you in an unenviable position. Manufacturers rarely make policy adjustments on vehicles that were sold used under certification programs once that extended warranty is expired. Were you the original owner out of warranty, you would have a much better chance that Mercedes would make a goodwill gesture.
The car is 18,000 miles out of warranty and most likely at least two years. They extended the warranty once as a marketing tool to support used car values. Most manufacturers, in my experience, wash their hands of any liability to subsequent owners after that extended period. Isn't what you want to hear but common in the industry.
There are no other prove for that dealer that he did the service,that is why nobody uses the book with stamps anymore because every service is recorded .
Also small claims court is not the way to go because currently they don't owe you any money.You need to consult an attorney and take them to court


Mercedes dealerships share information through the NetStar system. While very good, it is not foolproof like every other computer system. It would not be the first time a service was missed being recorded.
I would simply request Encino to forward to you the repair order copy where they did the work. If they do so, you can most likely save yourself a lot of time and concentrate on finding a less expensive way to cure the transmission problem.
Get the MVI from your dealer if it don't show a transmission service then there was non ,period.
Then find out if the transmission service is a requirement to get the CPO for the car,if yes, you take the car to the selling dealer and give it back to him and sue him for breach of contract.
You bought the car because as a CPO car you expected a car with all required maintenance done,so if that is not the case he sold you something what he didn't had,also a breach of your buying contract.
That has nothing to do with if your transmission works or not.
Again get a lawyer,with your plan to pay for the repair and the go to small claims court I'm afraid you will not succeed
Get the MVI from your dealer if it don't show a transmission service then there was non ,period.
Then find out if the transmission service is a requirement to get the CPO for the car,if yes, you take the car to the selling dealer and give it back to him and sue him for breach of contract.
You bought the car because as a CPO car you expected a car with all required maintenance done,so if that is not the case he sold you something what he didn't had,also a breach of your buying contract.
That has nothing to do with if your transmission works or not.
Again get a lawyer,with your plan to pay for the repair and the go to small claims court I'm afraid you will not succeed
Ask for a supervisor if your service guy refused to answer your question if the service was done or not.
They are not required to show you the report because it includes information about the previous owner , but they have to tell you if a certaint service is done


Ask for a supervisor if your service guy refused to answer your question if the service was done or not.
They are not required to show you the report because it includes information about the previous owner , but they have to tell you if a certaint service is done
Encino is the dealership who claims to have records of the transmission service. For all we know, they did do it or they are holding the repair order where the previous owner had it done at an independent. Evidently they did convince Mercedes of this scenario. Those are the people to contact for the records, not some other dealer with no skin in the game and no real knowledge of the situation other than what is on the computer.
His home dealer is the address to talk to,all services done by a dealer ship are in the VMI that is the only prove for all services done on warranty ,good will and paid by the customer ,that report replaced the good old book with the stamp from the dealer that a certain service was done.
By 39000 Miles as an add on to the B service the transmission fluid change is required by Mercedes,if that is required to get the car certified I don't know that is something he has to find out.
If his dealer not provide him with the information,during a lawsuit against the selling dealer they will have to.
Last edited by ulflei; Sep 11, 2012 at 11:28 PM.


My CPO S550 '08 was just at 39,000 miles when I purchased it, and had no record of the transmission flush. I paid for this myself at my next service. No transmission issues so far.
The Mercedes Benz Club of America has a program with MB dealerships to give 10-20% discount on service and parts. My dealer gives me 10% discount on everything, parts, labor, even inspections.
I have saved hundreds of dollars servicing my three vehicles at my dealer this way, but it is worth the $49 membership fee in your case for the single repair.
An additional benefit is $1,000 off the final negotiated price of a new Mercedes, but you have to have been a member for more than one year.
Good luck, and keep us posted.







