Help!!! Car won't go when you step on the gas!!!
Thread Starter
Newbie
Joined: Jul 2006
Posts: 5
Likes: 2
2001 s430
Help!!! Car won't go when you step on the gas!!!
Hello all...01 s 430. Normal driving today. Came off the freeway and when I went to accellerate nothing happened. I put it to the floor and it accelerated very very slowly. I can only imagine what would have happened if I was trying to cross a busy intersection with my kids...wholly cow that was scarey!!!! I pullled over and turned car off and restarted it and it worked fine for a few miles then did it again...but this time with the check engine light....uuuuuuuggggg...any ideas what's going on????
Member
Joined: Jun 2008
Posts: 215
Likes: 6
From: San Diego
2012 CLS63 AMG Performace - Obsidian Black
Believing and knowing are two different things. That said, I'll bet a dollar to your donut what your problem is. And it's not your transmission. Relatively simple, actually. Not super cheap, but simple.
Your gas pedal has a sensor behind it; it sends pedal angle information to the throttle. When the senor goes bad, the pedal doesn't work.
The pedal replacement is a DIY job, about 10 minutes with basic tools. The pedal itself, with sensor (its a scissors-looking assembly) is available at StarPower for $150 (better than the dealer's $300):
http://cgi.ebay.com/ebaymotors/Merce...Q5fAccessories
Good luck- BTW, your code should be P0402 for throttle / pedal sensor...
Chris
p.s. If you just want to take it to an independent, the part and labor will run you about $250 average.
Your gas pedal has a sensor behind it; it sends pedal angle information to the throttle. When the senor goes bad, the pedal doesn't work.
The pedal replacement is a DIY job, about 10 minutes with basic tools. The pedal itself, with sensor (its a scissors-looking assembly) is available at StarPower for $150 (better than the dealer's $300):
http://cgi.ebay.com/ebaymotors/Merce...Q5fAccessories
Good luck- BTW, your code should be P0402 for throttle / pedal sensor...
Chris
p.s. If you just want to take it to an independent, the part and labor will run you about $250 average.
Last edited by socalsounds; Jan 26, 2010 at 06:50 PM.
Newbie
Joined: Dec 2009
Posts: 1
Likes: 0
sl500
Pedals and sensors
Believing and knowing are two different things. That said, I'll bet a dollar to your donut what your problem is. And it's not your transmission. Relatively simple, actually. Not super cheap, but simple.
Your gas pedal has a sensor behind it; it sends pedal angle information to the throttle. When the senor goes bad, the pedal doesn't work.
The pedal replacement is a DIY job, about 10 minutes with basic tools. The pedal itself, with sensor (its a scissors-looking assembly) is available at StarPower for $150 (better than the dealer's $300):
http://cgi.ebay.com/ebaymotors/Merce...Q5fAccessories
Good luck- BTW, your code should be P0402 for throttle / pedal sensor...
Chris
p.s. If you just want to take it to an independent, the part and labor will run you about $250 average.
Your gas pedal has a sensor behind it; it sends pedal angle information to the throttle. When the senor goes bad, the pedal doesn't work.
The pedal replacement is a DIY job, about 10 minutes with basic tools. The pedal itself, with sensor (its a scissors-looking assembly) is available at StarPower for $150 (better than the dealer's $300):
http://cgi.ebay.com/ebaymotors/Merce...Q5fAccessories
Good luck- BTW, your code should be P0402 for throttle / pedal sensor...
Chris
p.s. If you just want to take it to an independent, the part and labor will run you about $250 average.
Member
Joined: Jun 2008
Posts: 215
Likes: 6
From: San Diego
2012 CLS63 AMG Performace - Obsidian Black
Not to my knowledge- I was told by my indy that a slow to respond pedal is the first sign- mine seemed sluggish (I actually thought I had an engine tune problem!) until kickdown, until it just died. Felt like a whole new car with a new pedal assembly!
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Super Member
Joined: Jul 2008
Posts: 769
Likes: 5
From: New York
Mercedes S55 AMG
Something that happened to me, may not be the same but similar:
I was driving, and accelerating a good bit, and I guess I caught one of the revs a bit too soon, and it's like the transmission went out of gear. It wouldn't accelerate anymore, I had to stop the car, put it in park, and back in drive.
I did a transmission fluid flush/filter change, and new transmission mounts, and I never had that problem again.
Although in your case it appears that it's a throttle issue with the pedal, since I think code p0120 means that. I never got any codes.
I was driving, and accelerating a good bit, and I guess I caught one of the revs a bit too soon, and it's like the transmission went out of gear. It wouldn't accelerate anymore, I had to stop the car, put it in park, and back in drive.
I did a transmission fluid flush/filter change, and new transmission mounts, and I never had that problem again.
Although in your case it appears that it's a throttle issue with the pedal, since I think code p0120 means that. I never got any codes.
Last edited by rondocap; Feb 4, 2010 at 02:28 PM. Reason: a
Senior Member
Joined: Sep 2005
Posts: 303
Likes: 75
From: s.f. bay area
s500 GL450 GL63 Z71XL Yukon 67 396 SS velle 68 Vert Camaro 69 RSSS Vert Camaro 75 Blazer
ive had the same problem happen to me about 5 times now in the past year. i step on the gas but doesnt go anywhere. it revs but seems like the tranny is out of gear. if it was the pedal sensor, it wouldnt rev correct?
Newbie
Joined: Aug 2013
Posts: 1
Likes: 0
E430
Also an E430
I also have an E430 that did the same thing yesterday. I was barely able to get home. And toward the end there was a whirring noise coming out of the engine area and the engine light was on.
Press on the accelerator and the engine revs up but won't go anywhere - won't engage. After turning it off and waiting a few minutes (maybe to cool) it starts up again, and will go for a few miles then quit again.
Have to go to the shop with it this week, but any input is appreciated.
Press on the accelerator and the engine revs up but won't go anywhere - won't engage. After turning it off and waiting a few minutes (maybe to cool) it starts up again, and will go for a few miles then quit again.
Have to go to the shop with it this week, but any input is appreciated.
Newbie
Joined: Jul 2013
Posts: 6
Likes: 1
Mercedes
I have a E430 with the same problem. Nothing happens when you step on the gas. I replaced the accelerator position sensor, but it did not fix my problem. Could the part I received from Autohaus be bad? Or do I have another issue? What next?
Newbie
Joined: May 2019
Posts: 1
Likes: 0
2001 e430
Suzgems, what was the problem??
I also have an E430 that did the same thing yesterday. I was barely able to get home. And toward the end there was a whirring noise coming out of the engine area and the engine light was on.
Press on the accelerator and the engine revs up but won't go anywhere - won't engage. After turning it off and waiting a few minutes (maybe to cool) it starts up again, and will go for a few miles then quit again.
Have to go to the shop with it this week, but any input is appreciated.
Press on the accelerator and the engine revs up but won't go anywhere - won't engage. After turning it off and waiting a few minutes (maybe to cool) it starts up again, and will go for a few miles then quit again.
Have to go to the shop with it this week, but any input is appreciated.
Newbie
Joined: Oct 2021
Posts: 7
Likes: 2
Mercedes Benz 2003 c200 Kompressor
My Mercedes Benz C200 Kompressor 2003 not moving
Believing and knowing are two different things. That said, I'll bet a dollar to your donut what your problem is. And it's not your transmission. Relatively simple, actually. Not super cheap, but simple.
Your gas pedal has a sensor behind it; it sends pedal angle information to the throttle. When the senor goes bad, the pedal doesn't work.
The pedal replacement is a DIY job, about 10 minutes with basic tools. The pedal itself, with sensor (its a scissors-looking assembly) is available at StarPower for $150 (better than the dealer's $300):
http://cgi.ebay.com/ebaymotors/Merce...Q5fAccessories
Good luck- BTW, your code should be P0402 for throttle / pedal sensor...
Chris
p.s. If you just want to take it to an independent, the part and labor will run you about $250 average.
Your gas pedal has a sensor behind it; it sends pedal angle information to the throttle. When the senor goes bad, the pedal doesn't work.
The pedal replacement is a DIY job, about 10 minutes with basic tools. The pedal itself, with sensor (its a scissors-looking assembly) is available at StarPower for $150 (better than the dealer's $300):
http://cgi.ebay.com/ebaymotors/Merce...Q5fAccessories
Good luck- BTW, your code should be P0402 for throttle / pedal sensor...
Chris
p.s. If you just want to take it to an independent, the part and labor will run you about $250 average.
I Have had the pedal changed 7 times in the last 4 weeks and the issue persists, have changed the injector mouth/head, ateator, brainbox, checked all the cables; still the issue persists. I start the car to warm in the morning, and wanted to rev it about but it won't, pedal to the floor it didn't even bulg just kept running like I was not there.
Please help what else can I do, I am on the verge of selling it as scrap.
MBWorld Fanatic!
Joined: Dec 2012
Posts: 2,474
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From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
I know almost nothing about a C200 (this is the W220 Forum), but I would concentrate on the throttle body and the wiring between the pedal and the throttle body.
MBWorld Fanatic!
Joined: Jan 2008
Posts: 6,151
Likes: 533
Mercedes
When you say you’ve changed the pedal 7 times , are they new or used ?
does it work at first when it’s replaced then stops working again , or have none of the 7 pedals worked ?
if they work initially upon replacement then stop working , there’s probably an electrical short that’s damaging them
does it work at first when it’s replaced then stops working again , or have none of the 7 pedals worked ?
if they work initially upon replacement then stop working , there’s probably an electrical short that’s damaging them
Newbie
Joined: Oct 2021
Posts: 7
Likes: 2
Mercedes Benz 2003 c200 Kompressor
When you say you’ve changed the pedal 7 times , are they new or used ?
does it work at first when it’s replaced then stops working again , or have none of the 7 pedals worked ?
if they work initially upon replacement then stop working , there’s probably an electrical short that’s damaging them
does it work at first when it’s replaced then stops working again , or have none of the 7 pedals worked ?
if they work initially upon replacement then stop working , there’s probably an electrical short that’s damaging them
Mostly second hand, used pedals. They work and then fail after some distance. Almost like same day.
How to find the electrical short?
