Elmerman
New Member
Hi all, I am new to this forum. I have owned a low mileage 2012 E350 cabriolet for a year bought from an MB dealer.
I took my car for its yearly MOT and service to the dealer that I bought it from and all was good. However, during the service I was advised that the car needed a diesel ECU software update which was done. Since the update/service was performed my fuel economy has dropped by around 20%. I do the same journeys, drive in the same style and mode.
My dealer who performed the service said nothing can be done.
I am getting max 29mpg from my diesel and prior to the service I achieved a regular 35mpg.
Has anybody else had similar issues?
I took my car for its yearly MOT and service to the dealer that I bought it from and all was good. However, during the service I was advised that the car needed a diesel ECU software update which was done. Since the update/service was performed my fuel economy has dropped by around 20%. I do the same journeys, drive in the same style and mode.
My dealer who performed the service said nothing can be done.
I am getting max 29mpg from my diesel and prior to the service I achieved a regular 35mpg.
Has anybody else had similar issues?