Throttle Lag
Thread Starter
Member
Joined: May 2002
Posts: 116
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From: Los Angeles, CA
Throttle Lag
I know there was a post in the Technical Forum on this same issue last year, describing the same symptoms as mine, but the originator had a C230 and I wasn't sure if anything on the E was different.
Almost verbatim of a reply to the other post, after cruising around passively, when I punch the accelerator there's a very noticeable lag in throttle response and the car just doesn't go. Twice now when I wanted to move out of the way to avoid a potential accident I've barely missed it, because I can't accelerate fast enough to completely get out of the way.
The other post mentioned this is due to the adaptive transmission, which defaults to a sort of economy mode unless you've driven aggressively a few minutes earlier. There didn't seem to be a fix other than every now and then stepping on the throttle to maintain the aggressive-shifting mode. On one hand I wouldn't want to give up the smoothness of the shift pattern in passive driving, but when you want to go you need the car to respond. Does anybody have any other suggestions?
Thanks.
Almost verbatim of a reply to the other post, after cruising around passively, when I punch the accelerator there's a very noticeable lag in throttle response and the car just doesn't go. Twice now when I wanted to move out of the way to avoid a potential accident I've barely missed it, because I can't accelerate fast enough to completely get out of the way.
The other post mentioned this is due to the adaptive transmission, which defaults to a sort of economy mode unless you've driven aggressively a few minutes earlier. There didn't seem to be a fix other than every now and then stepping on the throttle to maintain the aggressive-shifting mode. On one hand I wouldn't want to give up the smoothness of the shift pattern in passive driving, but when you want to go you need the car to respond. Does anybody have any other suggestions?
Thanks.
Senior Member
Joined: Mar 2002
Posts: 333
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From: LI, New York
All of them, as much as I can...
Annoying, isn't it?
I just flip the gear to "3".
A slightly more expensive solution is to put a performance chip like Upsolute and a K&N filter in your car. I found it improved the response in mine drastically.
I just flip the gear to "3".
A slightly more expensive solution is to put a performance chip like Upsolute and a K&N filter in your car. I found it improved the response in mine drastically.
Newbie
Joined: Apr 2002
Posts: 6
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2000 E320
If it's really urgent to get moving fast press the pedal all the way down to immediatley activate a down shift.
If you don't feel confortable pressing all the way down, remember that the speed at which you press the pedal down partially is also detected, try a quick tap down and see if that triggers a downshift.
Regards,
If you don't feel confortable pressing all the way down, remember that the speed at which you press the pedal down partially is also detected, try a quick tap down and see if that triggers a downshift.
Regards,
Thread Starter
Member
Joined: May 2002
Posts: 116
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From: Los Angeles, CA
Techbike - Does putting an Upsolute chip in void the warranty?
EMan - The frightening thing is I did floor the pedal! I can get it to downshift by doing that, but the momentary lag is still there. I'm going to mention it when the car is serviced next week, although it sounds like there's no fix (bummer)...
Thanks for responding.
EMan - The frightening thing is I did floor the pedal! I can get it to downshift by doing that, but the momentary lag is still there. I'm going to mention it when the car is serviced next week, although it sounds like there's no fix (bummer)...
Thanks for responding.
Senior Member
Joined: Mar 2002
Posts: 333
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From: LI, New York
All of them, as much as I can...
Originally posted by New E
Techbike - Does putting an Upsolute chip in void the warranty?
Techbike - Does putting an Upsolute chip in void the warranty?
But technically speaking, yes, it would void it since the car has been modified with a non-factory-approved mod.
Last edited by techbike; Jul 15, 2002 at 08:37 AM.
