boggie
Member
- Joined
- Nov 28, 2005
- Messages
- 48
Hi All,
Our W210 320CDI has developed a strange intermittent fault. Whilst driving up the motorway at about 50MPH on Friday night I noticed that if I tried to accelerate to overtake, the car did not drop down a gear. If I put my foot down the revs did not rise immediately as normal, they only gradually increased as the car slowly accelerated in top gear. Kickdown was not working either. So I tried manually changing down a gear and accelerating but the car did not respond, the revs just stayed at 3000. with my foot on the floor. Next I tried dropping the car into neutral and put my foot down but again, the engine hit 3K and no more.
Apart from that the car was driving ok so I continued my journey. After about 100 miles I stopped for fuel, this meant the car was switched off for about 5 minutes. When I started off again the car was back to how it should be. I could kickdown a gear and the engine would rev strongly, right through the range. However after a while the problem came back again and I could not rev past 3K. If I stop the car for a few minutes and set of again the problem goes away but always returns after a while.
Any of you tech gurus out there know what may be wrong? I have a service coming up so would appreciate any advice and possible reasons before I go.
Many thanks!
Our W210 320CDI has developed a strange intermittent fault. Whilst driving up the motorway at about 50MPH on Friday night I noticed that if I tried to accelerate to overtake, the car did not drop down a gear. If I put my foot down the revs did not rise immediately as normal, they only gradually increased as the car slowly accelerated in top gear. Kickdown was not working either. So I tried manually changing down a gear and accelerating but the car did not respond, the revs just stayed at 3000. with my foot on the floor. Next I tried dropping the car into neutral and put my foot down but again, the engine hit 3K and no more.
Apart from that the car was driving ok so I continued my journey. After about 100 miles I stopped for fuel, this meant the car was switched off for about 5 minutes. When I started off again the car was back to how it should be. I could kickdown a gear and the engine would rev strongly, right through the range. However after a while the problem came back again and I could not rev past 3K. If I stop the car for a few minutes and set of again the problem goes away but always returns after a while.
Any of you tech gurus out there know what may be wrong? I have a service coming up so would appreciate any advice and possible reasons before I go.
Many thanks!