Please help I changed the spark plugs on my C180 2000 w202 the other day and took i for drive to to make sure everything was ok. The car seemed fine so took it onto local bypass and put the foot down the revs climbed steadily to about 4000 rev and would not go any further it appeared to be backfiring. I tried the kickdown and it just stuck at 4000 revs and would not change gear or go any further. Drove and as long as you dont put the foot down the car drives fine. Brought it and checked over my work and cannot see any probs everything as it should be. I then tried to rev it in park and the same thing happened 4000 revs and it starts to back fire. Changed all the plugs back but the prob is still there.
Has anyone got some ideas on what the prob might be
Has anyone got some ideas on what the prob might be
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