Throttle Delay

[Wolfgang]

I've got a 330CI. It's had a slight delay on the throttle ever since new. It's not a "flat spot" but a distinct delay in engine response when the accelerator is pressed. This makes the car difficult and uncomfortable to drive slowly in traffic and spoils what is otherwise a superb car.
My dealer has told me that it's one of the characteristics of the "fly by wire throttle" and I need to accept it. Has anyone got any comments or similar experience?

[doughboyea]

I had a very similar problem in my old mercedes, though it was due to several factors: mismatched spark plugs, bad fuel pump, bad relays, and a dirty air intake. But since yours is still new, I really don't know what that could be.

Since I don't have a 330i, perhaps someone else could better lighten this fellow, than I can.

Dough

...oh and

[320CDI]

Could it be an electrical problem?

I think rather than older cars where the throttle cable was conected to the pedal that this is now done electronically.

Could it be that the sender unit on the throttle is faulty/needs cleaning?


If its new why have you not checked it out with the dealer?

[djs1122]

I have a brand new 325i and seem to be experiencing the same thing. When I push on accelerator, it has a slight delay before kicking in. I though I would ask at the dealer or drive another to see if it just the way the car is supposed to be, or unique to mine.

[330Dawg]

Guys - seems like this might be a common issue. Wife and I test drove an '01 330ci this weekend and we both noticed this issue - slight hesitation when the throttle is pressed. Reminded me of my Dad's golf car. Of course once it kicked in, HOLD ON!!!!! I did notice if you switched to the shift mode that it did go away.

Still debating on buying this one or a new G35 coupe.

[Trigati]

I also have a 325.

The delay I get is actually due to the auto box in normal mode. It's as if it first tries to accelerate in the gear it has currently selected before deciding it's going nowhere and drops it down. Then hey presto acceleration.....

The reason I have come to this conclusion, is switch to Sport mode on the box and the delay/lag disappears completley.

Can anyone testify to this? Or correct me if wrong?