I have just replaced both sets of brake pads on my 2007 W211 E320CDI V6 everything went well went to start the car this morning and was met with the warning light in the shape of the engine illuminated, manual says it could elude to the computer not being able to process certain readings ie coolant temperature, rev counter or cruise control, and now the car will not accelerate above 40mph strange question to ask could this stem from anything relating to changing the pads or is this an unfortunate occurance relating to something more sinister any help would be gratefully appreciated