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????
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I believe you have a transmission problem.
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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. |
Pedals and sensors
Originally Posted by socalsounds
(Post 3911802)
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. |
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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yeah definitely sounds like a pedal issue...i have seen many MBs like this.
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Thanks guys...I'm going to get a code readed today to double check but I have a feeling from what I've been reading that you're correct!
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p0120 is the code....still the same fix?
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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. |
Yes, P0120 is a pedal sensor. You need the entire scissors-pedal assembly.
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Maybe you could take the parts out of a new Toyota and rebuild the pedal? Sorry couldn't resist.
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Deleted by moderator |
Base on my experience, it's your transmission may seem to be the problem...
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Your experience would be incorrect, its an electronic pedal issue.
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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?
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No revving. P0120 is the code, and it DEFINITELY not a transmission issue. The part is readily available both new and used.
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I have a E430, but my pedal does not have a sensor. Do I have something else?
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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. |
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?
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Suzgems, what was the problem??
Originally Posted by suzgems
(Post 5759438)
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. |
My Mercedes Benz C200 Kompressor 2003 not moving
Originally Posted by socalsounds
(Post 3911802)
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. 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. |
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.
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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 |
Originally Posted by tusabes
(Post 8436359)
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 Mostly second hand, used pedals. They work and then fail after some distance. Almost like same day. How to find the electrical short? |
you are not doing proper trouble shooting.
Most obvious is a failed gas pedal - only replace with new, not used. |
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