To whom can I send a complaint on horrible service?
You say they didn't fill the oil, how do you know this? What happened? If you remove the pan to replace the TCM you lose 3-4 quarts of fluid, which has to be put back to drive the car out of the shop. Did this not happen?
You expect warranty service after warranty ends... to what point? The warranty has a finite end point, if we disregard that and assume just because it's "close" MB will keep covering it, at what point does the customer become responsible?
The cars are expensive to own outside of warranty, as with most German vehicles. Sucks, but you can easily find that out through any little bit of research. If maintenance costs are going to be a concern, buy Japanese.
Let me clarify some facts concerning my situation.
Regarding your questions : "you say they didn't fill the oil, how do you know this? What happened? If you remove the pan to replace the TCM you lose 3-4 quarts of fluid, which has to be put back to drive the car out of the shop. Did this not happen?" - confirmation of my words, that there was not a proper level of oil in the transmission, is a letter from MB. I'll explain everything in order now. When I turned to MB local dealership there were diagnosed the errors in transmission control unit, in the engine control unit as well. According to the policy of MB transmission control unit as well as the whole service related to this unit have to be done only at the MB official dealership. That is why I bought this unit along with the service from the MB dealership. Since there were another errors diagnosed in the car the vehicle was not running and was towed from dealer not running. The further repair was performed based on the invoice gotten from MB. Since the next mechanic was sure that there was the oil in the transmission ( as stated in the invoice) mechanic started to perform the procedure for adjusting the oil level. having heated the transmission to 45 degrees, mechanic unscrewed the drain plug and saw that there was not oil at all. Since the engine was running and transmission worked without oil these actions led to the damage of the transmission. Having this situation I complained to the SA and SM of the dealership. After that I got a letter from them in which was stated that 3 quarts of fluid instead of 7 ( as was stated in the invoice) were filled in the transmission. Thereby the letter once again confirms inconsistency the data of the invoice to the reality. But in fact, there were no oil in the transmission at all.
Regarding your following questions: "You expect warranty service after warranty ends... to what point? The warranty has a finite end point, if we disregard that and assume just because it's "close" MB will keep covering it, at what point does the customer become responsible?" - of course I don't expect the warranty service after warranty ends. that is why I paid for the transmission control unit as well as the whole replacement service along with the unit. Just for avoiding misunderstanding I would like to explain that I expect not warranty service but the qualitative service after the ending of the warranty.
Regarding your remark "The cars are expensive to own outside of warranty, as with most German vehicles. Sucks, but you can easily find that out through any little bit of research. If maintenance costs are going to be a concern, buy Japanese" - I am well aware of the high cost of maintenance! Therefore under such expensive price of the service I expect high qualitative service. In this case the problem isn't the cost but a conformity the price to the quality.
Anyway, any advice is appreciated! Thank you
Yes, they will say you should have done all the work with them. Yes, technically you would have to sue them to get them to pay you, but in reality they will often concede and just give you back your money or reimburse for your repairs to avoid all that hassle of legal actions.
Unsure if it's common in your area, but most local news stations here have some sort of Consumer protection segment where they will go to bat for you in a case like this, might be worth placing a call and seeing if they would take your story if the dealer will not stand behind their work.


