Hi there,
This is a strange one, the car drives fine... until I get on the motorway. It will accelerate nicely to 70mph swiftly, but then if I want to take someone over or even when it's up the hill car will not accelerate 80% of the times, it will slowly slow down to about 55mph and then it will pick up again until next hill. My mechanic can't find a problem, hoping you guys can point me in the right direction.
Thanks in advance
E220/2014/2.2
This is a strange one, the car drives fine... until I get on the motorway. It will accelerate nicely to 70mph swiftly, but then if I want to take someone over or even when it's up the hill car will not accelerate 80% of the times, it will slowly slow down to about 55mph and then it will pick up again until next hill. My mechanic can't find a problem, hoping you guys can point me in the right direction.
Thanks in advance
E220/2014/2.2