ASR problem solved! - PeachParts Mercedes-Benz Forum

BauhnBuster · #1 01-13-2004, 05:07 PM

I just want to let my fellow members know that I have had the dreaded ASR "limp home mode" problem withy my 500E for the last couple months. I had Boundary Mercedes in Vancouver scope the car and see what it is. It ended up being the Throttle Position Switch. This is a $55.00 part Canadian. I am very happy with the service I got and they added new clips for my body mouldings and a new wiper for no cost. I want to post this news because I think it is important to have the car scanned for the appropriate codes before parts are thrown into it. I also wanted to add about the great service which in many posts seems to be lacking at the dealers lately. My 500 is now very happy

Cheers!

Shaun

dtf · #2 01-13-2004, 07:39 PM

It is always nice to hear about happy endings.

sab · #3 01-13-2004, 07:42 PM

Would my '95 S320 have a throttle position switch like that or is that part of the ETA (Electronic Throttle Actuator $1,000.00 !!!) in a W140?
My tech told me that my ETA indicates "open throttle" and therefore I get a check engine light and at times the ASR issue.
He told me I need a new ETA. Anyone knows?

Thanks,
Sab.

BauhnBuster · #4 01-13-2004, 11:39 PM

Get Mercedes to pull the codes. On my invoice it states that it was only 1 hour labour to diagnose the problem and the switch was it!

dtf, it is a happy ending

You sometimes never know. I could have got the call about ECM or worse!

I love my car again.....

Shaun

JimF · #5 01-14-2004, 02:03 PM

DTCs that were read, you would help all of us out. Please post them if you do.

BauhnBuster · #6 01-14-2004, 03:53 PM

Here is what it reads on the bottom of the invoice:

Road test check for DTC found 051 224 117 prepare for electrical test, perform electrical test M16/1s2 OK, prepare for socketbox test, perform socketbox test, RE $ RE L/F carpet & underdash panel, replace closed throttle position switch, clear DTC, note if problem still persists may require Throttle valve actuator, REC overnight roadtest."

Shaun

JimF · #7 01-14-2004, 06:23 PM

but those numbers do not compute in my reference material for a '92 500E.

BauhnBuster · #8 01-15-2004, 01:27 PM

....that's what it says on the invoice. I copied it right off the bottom. What should the numbers look like? Could these be Canadian codes? All I know is so far so good. I wish I could be more help.

Shaun

Andres · #9 02-20-2008, 08:30 AM

Hey everyone I'm new to this forum. I just bought a S320 and the dashboard looks like a christmas tree.

I have ABS, ETA and SRS lights on. Any clues!!!??/

Tks.

Ferdman · #10 02-21-2008, 07:47 AM

Andres, check the condition of the voltage regulator brushes. They may be worn down so far that the battery is not recharging properly. If so, simply replace the voltage regulator.

donbryce · #11 02-21-2008, 09:37 AM

Yes, nice to hear a success story. Where I am, there is no dealer, and no indy left still actively working who knows anything about older Mercedes. You're fortunate. My manuals, my noggin, and this forum are what I rely on.

Andres · #12 02-21-2008, 01:03 PM

Fred,

Thanks for your response. SRS light turns off now after about 30 to 60 seconds of running the car. ABS and ETA lights are still staing on.