My 1991 190E 2.6 recently stalled due to what appears is a faulty fuel pump relay (it was a very hot day and the car started right up the next day). I was towed to a service station and the next day picked it up after they were able to start the engine and run it for a while. Since then I notice a vibration when the car hits 20 mph. It does not matter which gear I have engaged ( I have tried first, second and third) and it goes away when the speed reaches about 25 mph but it seems to be getting worse. Could this be a wheel alignment problem which came about due to the towing or is it related to the relay?

Thanks in advance for your response.


Dan