Acceleration *hiccup*
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Joined: Jan 2004
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Acceleration *hiccup*
I get these on cooler mornings. I'll accelerate, but for a second, it feels like no gas is going where it needs to. It usually does this between 1-2k RPM & is more exagerrated when outside temp is in the 30's. I called my local MB dealership and was told by service tech that this is normal. A safety precaution from MB to prevent harsh driving with a cold engine. To me, this sounds like the opposite of a "safety feature." Random bouts of non-acceleration spell big trouble when trying to make a pass in the left lane.
Once the engine warms up, everything seems to be normal.
Anyone else have this problem?
Once the engine warms up, everything seems to be normal.
Anyone else have this problem?
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From: NYC/NJ.
W209 - W163
I have hiccups everyday on my 2002 ML320, so annoying, its not even a smooth acceleration, cause if if i punch it a little, the RPMS go up but the car just revs and then jerks into gear... whats up with that???
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Joined: Sep 2003
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From: Edmonton
Re: Acceleration *hiccup*
Originally posted by O Dogg
I get these on cooler mornings. I'll accelerate, but for a second, it feels like no gas is going where it needs to. It usually does this between 1-2k RPM & is more exagerrated when outside temp is in the 30's. I called my local MB dealership and was told by service tech that this is normal. A safety precaution from MB to prevent harsh driving with a cold engine. To me, this sounds like the opposite of a "safety feature." Random bouts of non-acceleration spell big trouble when trying to make a pass in the left lane.
Once the engine warms up, everything seems to be normal.
Anyone else have this problem?
I get these on cooler mornings. I'll accelerate, but for a second, it feels like no gas is going where it needs to. It usually does this between 1-2k RPM & is more exagerrated when outside temp is in the 30's. I called my local MB dealership and was told by service tech that this is normal. A safety precaution from MB to prevent harsh driving with a cold engine. To me, this sounds like the opposite of a "safety feature." Random bouts of non-acceleration spell big trouble when trying to make a pass in the left lane.
Once the engine warms up, everything seems to be normal.
Anyone else have this problem?
I had a similar problem.....The MAF sensor was bad. But it did turn on the CEL.
To see if that was the problem......I just unplugged it, it ran better.
I can relate to your last sentence! Almost got into 3 accidents because of the lack of acceleration problem.
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Joined: Apr 2002
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From: NYC
red bicycle
This is normal. I read somewhere that this is due to emissions control. When the car is cold, the catalytic converters do not work efficiently. I think the lag has something to do with helping to warm the catalytic converter.
While I'm not 100% on the exact explanation of what the lag does, but I know it has to do with emissions control.
While I'm not 100% on the exact explanation of what the lag does, but I know it has to do with emissions control.
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Originally posted by ahopeter
o dogg, sounds normal as long as it goes away after lightly warm.
o dogg, sounds normal as long as it goes away after lightly warm.
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Joined: Jun 2003
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From: nj
a car that can't do the throttle reset.
its supposed to be a safety issue to protect the motor and tranny til warm... at least thats what the dealer tries to say. its probably just another crappy ml flaw that they are trying to cover up.
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Joined: Jun 2004
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ML320 hesitating
My 2002 ML320 is hesitating also, but not just when it is cold...all the time. It is most obvious when shifting into drive after backing up a short distance (as in pulling out of a parking space). Once in drive pressing on the accelerator reaps no reward of motion for a full 2 or 3 seconds.
It does this at stop lights etc. as well. I took it to the dealer who so far has said that the onboard computer shows no error or problem messages so he concludes that there is none. He said a road test showed no problems.
I'm going back and take one of them with me in the car but would appreciate anyone's thoughts on this.
I am already begining to smell a run-around coming. This is not minor problem. It is so bad that my wife, who is not a timid driver herself, refuses to use the car.
It does this at stop lights etc. as well. I took it to the dealer who so far has said that the onboard computer shows no error or problem messages so he concludes that there is none. He said a road test showed no problems.
I'm going back and take one of them with me in the car but would appreciate anyone's thoughts on this.
I am already begining to smell a run-around coming. This is not minor problem. It is so bad that my wife, who is not a timid driver herself, refuses to use the car.
Newbie
Joined: Aug 2003
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2000 ML430
Maybe its the fuel filter.
On the start a fresh injection of fuel can be blocked by fuel debris, when you drive a little bit it becomes smoother.
It could also be the electrical plugs
Or its just the Air sensor.
Check all of these 3.
On the start a fresh injection of fuel can be blocked by fuel debris, when you drive a little bit it becomes smoother.
It could also be the electrical plugs
Or its just the Air sensor.
Check all of these 3.
Junior Member
Joined: May 2004
Posts: 58
Likes: 1
From: San Francisco, CA
2005 SL55 AMG
I have the same issue has Viktorious.
Say on my 2000 ML430 I press the accelerator a little deeper to get to get a sudden burst of speed. The revs go up, and after a whole 1.5-2 seconds, it kicks into gear and then I get the power I should have had earlier. It makes lane passing more complicated! I think it should kick into the lower gear sooner.
I understand that this is probably a "safety" feature, or to make the ride seem more "smooth," but does anyone know what I can do about it? Maybe an aftermarket mod?
Thanks,
riz
Say on my 2000 ML430 I press the accelerator a little deeper to get to get a sudden burst of speed. The revs go up, and after a whole 1.5-2 seconds, it kicks into gear and then I get the power I should have had earlier. It makes lane passing more complicated! I think it should kick into the lower gear sooner.
I understand that this is probably a "safety" feature, or to make the ride seem more "smooth," but does anyone know what I can do about it? Maybe an aftermarket mod?
Thanks,
riz
