Hi all,
I have a gearbox prob that I could do with some help with.
I have a 1999 V220 CDi auto.
It seems to drive ok, but nothing special, and is particularly sluggish when pulling away from a standstill - say from a road junction.
If I clog it to pull away, the engine/transmission "mushes" rather than wheelspins away.
If I drive very gently and accelerate very slowly (learner speeds slowly) it will change up through the gears normally, just.
If I drive it even marginally enthusiastically it is reluctant to change gear and stops changing at 3rd.
It will rev away quite happily but won't change up to 4th.
If I'm cruising in 4th (after driving like Miss Daisy to get there) and then either brake hard enough for it to change down, or use kickdown, it will change down to third and refuse to change back up again.
The only way I can get it back into 4th is to slow right down, almost to a standstill, and then accelerate very slowly, or knock the gear selector into neutral momentarily (at high speed) and then back into Drive.
After trawling through the posts for advice on this forum, I've stripped the inlet manifold & cleaned out all the black gunk from the EGR and associated area,
I've replaced the vaccum sensor by the rhs wheelarch,
and also replaced the boost sensor on the bulkhead just above the manifold.
I have no idea whether it's a gearbox or engine problem.
It doesn't seem to be in limp mode for either and there are no warning lights illuminated on the dashboard.
I'm now at a loss for what to try next.
It's driving me nuts and I'm tired of driving the van like a girl!
I'd appreciate it if you could put your collective heads together and perhaps point me in the right direction...as long as it isn't towards the nearest MB Dealer!
Thanks in advance,
Rob
I have a gearbox prob that I could do with some help with.
I have a 1999 V220 CDi auto.
It seems to drive ok, but nothing special, and is particularly sluggish when pulling away from a standstill - say from a road junction.
If I clog it to pull away, the engine/transmission "mushes" rather than wheelspins away.
If I drive very gently and accelerate very slowly (learner speeds slowly) it will change up through the gears normally, just.
If I drive it even marginally enthusiastically it is reluctant to change gear and stops changing at 3rd.
It will rev away quite happily but won't change up to 4th.
If I'm cruising in 4th (after driving like Miss Daisy to get there) and then either brake hard enough for it to change down, or use kickdown, it will change down to third and refuse to change back up again.
The only way I can get it back into 4th is to slow right down, almost to a standstill, and then accelerate very slowly, or knock the gear selector into neutral momentarily (at high speed) and then back into Drive.
After trawling through the posts for advice on this forum, I've stripped the inlet manifold & cleaned out all the black gunk from the EGR and associated area,
I've replaced the vaccum sensor by the rhs wheelarch,
and also replaced the boost sensor on the bulkhead just above the manifold.
I have no idea whether it's a gearbox or engine problem.

It doesn't seem to be in limp mode for either and there are no warning lights illuminated on the dashboard.
I'm now at a loss for what to try next.
It's driving me nuts and I'm tired of driving the van like a girl!

I'd appreciate it if you could put your collective heads together and perhaps point me in the right direction...as long as it isn't towards the nearest MB Dealer!
Thanks in advance,
Rob