Limp Mode from severe curb scrap?
 

Hi. need help. Trying to understand issue.

my daughter had a severe curb scrap...chipping a chuck of the rim and tire off, as well as, throwing the alignment off. A week or so later after no driving a lot, after stopping to gas station, her a hard noise when turning the wheel and noticed the car was in limp mode. no park or mode on display. stopped for a moment and turned car off. No limp mode. drove ok until next day. limp mode. intermediate bouts until finally its stuck completely in mode now. But before, got a diagnostic and said bad shifter. 1100.00 dollars. although he said check engine light when off when he drove around corners and no problems with him. As soon as i got back in, limp mode. turn off then for a few and normal. now limp mode forever....

You need to hit the curb really hard to take out a chunk of tire and rim.

It sounds like a wheel speed sensor has been damaged, which could be triggering limp mode.

...going with speed sensor also.

Hi newbenzowner1234....Welcome to the forum! I'm going to agree with the other members; speed sensor is likely the issue. I would be happy to send you a link to our catalog where you'll be able to find a speed sensor, if that's the part that needs to be addressed. Can you please let us know what year and model the Mercedes is.

I've also included a link to our Technical Articles. This is where we break down every part/system of the car by year and model for those looking to DIY their projects. Please take advantage of it if you decide to go that route! Welcome again! :)

Mercedes Benz Tech Articles - Mercedes-Benz Technical Articles – W203 C-Class W210 R170 SLK-Class - Pelican Parts

Looking forward to hearing back from you.


-Dmitry

Not sure what kind of car we're talking about here but FWIW I've never seen a bad wheel speed sensor put a car in limp mode, and by limp I'm assuming the transmission won't shift???

The shift indicator going blank is a classic sign of a faulty shifter which WILL cause a limp condition.........

if you have standard issue tire/rim combo, it may be challenging to take out
a chunk out of both tire and wheel. with low profile tire, it is quite easy even
at snail's pace. it happened to.....uh....friend of a friend. ;-)

Funny, now I am noticing the original post specifically mentioned the shifter error.