alans1

My '02 E55 with 69K miles recently developed a problem when whenever I go to full throttle - it goes into the limp home mode. This occurs at low and high speeds. No check engine light is set and the problem clears with a restart. I just replaced the MAF and the problem persists. Any thoughts?

saintz

Can you describe the limp mode? Does the transmission lock into second gear? Or does it just cut power so it feels like a 1982 Honda Civic, even though you have the full range of gears? The latter would allow you to go over 60 mph on the highway, but accelerating would be very slow. The former would limit you to slow speed in 2nd gear.

Dan Wang

Hook it up the the SDS. It should tell it you why its going into limp mode.

It could be the throttle position sensor or a number of things.

alans1

I go in the limphome mode only when I fully depress the accelerator pedal. At the end of the accelerator pedal travel I depress what feels like a switch and the car no longer responds to the accelerator. It just seems to coast but does not stall. Does the e55 have a TPS?

trinitony

Any update???

Fabio D

No, the E55's not have throttle position sens, only have a micro switch at the first acc pedal depress & final switch to reduce one gear in hard accel

maybe your problem are the final switch or potenciometer accel in front of the car near the fuse box! i have some problem in one car & the faulty are the potenciometer

Fabio Daniel

greg12m3

It's probably your pedal accel sensor. The other sensor fabio mention is the kickdown, which i ordered once from euro in bethesda, i was told i was the only person the ever buy that part from them and since it was only 18 dollars I did but never installed it because it actually was not the problem. But I really think it maybe your pedal sensor, i had no check engine light, but everytime i floored the pedal the car would die or just go in to limp mode.

Fabio D

1+ absoluttly correct greg!

I remember only change 1 kickdown switch in a ml55 (W163) for not response at full throttle, but no limp home.. i think the problem is the potenciometer near the front fuse box (pedal sensor).. Yes!. (greg remember, our cars have a little microswitch in the pedal accel for the idle control)

Fabio Daniel

rikkie55amg

Been having a look at this thread and It's exactly what I need. do you guys have the part number or replacement instructions to solve this problem. thanks
Also, my car is back on the road after a little mishap with a new Lorinser bumper on it. You can see here: http://www.cardomain.com/ride/3051115

saintz

I'm interested in this as well. I think I may have this issue. I can't seem to find the part number for any of the TPS switches online. Anyone?

saintz

I've checked everything on parts.com and can't find the relevant part, but this definitely seems to be my problem as well. Can anyone help with a part number?

saintz

Edit: the following appears to be for the S class and some others, not the W210. See the following thread for the W210.

Per this thread:
https://mbworld.org/forums/s-class-w...n-problem.html

The part appears to be 2203000004, available from parts.com for $110. I think this is the right part.

Per StephenK, this is the picture of the part.

Can anyone confirm this is correct?

saintz

It appears on the S class, SLK, and certain other models, the sensor is in the pedal, which is the part shown above.

On the W210 (and similar cars like the W208), the sensor appears to be under the hood, near the firewall and fuse box. Thanks to Dantus on this thread:
http://www.benzworld.org/forums/w210...hrottle-2.html

Part number W0133-1786802, available from Mercedesshop.com and even Amazon.com. I have one on order and will update if this fixes the problem or not.

saintz

Ok, I installed part W0133-1786802 on my W210. It is available from Amazon and many other shops. It cured the problem of going into a low power, delayed response, limp mode that was described earlier. Note this is not a true limp mode, which would be in 2nd gear and would definitely throw a CEL. My problem didn't throw a CEL and allowed use of high gear (I think it was 5th gear, but hard to tell).

I used the Vemo version. This version is clearly made by Vemo as an OEM part for Mercedes. Comparing the Vemo part to the Mercedes part, the Vemo part has been dremeled by hand in the areas where the Mercedes casting has a Mercedes logo. In short, it's pretty clear that Vemo made these for Mercedes, had an overrun, couldn't legally sell them as is, so they dremeled the Mercedes logos off the casting, and now sell them under their private brand. You can also find the Mercedes branded OEM models at parts.com.

Note that if you have a S class or other model, you may need the pedal version, rather than this version (in the firewall).

alans1

Saintz - Please provide the location of the the TPS on the firewall. I need to replace mine this weekend.

saintz

On the W210, the sensor is in the engine bay. Note that on other models, it may be under the pedal.

Open the hood and stand where the hood meets the drivers door (USA/left hand drive car). Place your right hand on the VIN plate on your windshield. Stick out your left hand, and place it under the hood. Your left hand should be resting really close to the TPS sensor. You'll see a taught cable running from the firewall to a small black box. Pull the cable, and the pivot arm on the TPS will twist. That's the part. Worst case, have someone in the car press the throttle, and you can see the cable move inside the engine bay. The throttle cable is attached to the TPS.

alans1

As a result of the help I received on the Forum, I was able to fix the problem of going into the in the "limp home mode" at full throttle. I ordered the Vemo TPS from Au*o Par*s Ware*ouse for $143 shipped and after a 10 minute install and a tranny reset, I was back in business!
Thanks to all,
Alan

carczar

Can the same Throttle position sensor part # be used for W210 CDI models as well or diesel engines use something else.

saintz

Probably the same. Check parts.com or autohausaz.com and they'll match it to your model.

ABALONE

I have a similar problem, any clue? I know my car is heavily modded, but some OEM stuff are actually still on the car

If i go full throttle,sometimes the car shut off ALL the power with,pedal respone is all gone,and the car gets higher idle (1300 rpm) and you have to restart it before you can drive it again. But the car feels like a honda civic, really no power at all. MAF? Limp mode?

Only warning that comes up is ESP Traction control. No BAS/ABS

Thanks!

Peter_02AMG

Did Kleemann tune your ECU?

ABALONE

At first,yes! But now i have a special ECU tune/map in it.

Peter_02AMG

Must be something in the program because my car was fine till I got a Kleemann tune. It did the same thing you described. I sent the ECU back to Cory and he told me the programmer increase the rev limiter and on some 00-02 E55 the car doesn't like it. He change it back and it work fine.

ABALONE

Ooh, interesting! Did your car also pull the ESP warning on the dash and nothing else? Stalled and raised idle?

Thing is that the car has been working 100% fine all summer and running strong even with the raised rev limiter. Just about the last week i started having this problem Makes me think it's something else?

TPS?

Peter_02AMG

No not these thing.