Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 07-30-2003, 12:10 AM
Registered User
 
Join Date: Feb 2002
Location: Bay Area, CA
Posts: 47
Jump Start Car = Major Problems ?

My car battery was weak recently and I had jump started my 1999 SLK230 several times. I thought I had fixed the problem by charging the battery , but it died again, and this time when I jumped it, the idle kept surging between 1000-1300 rpms and there was no response from the throttle. I have searched the archives and have already tried disconnecting the battery. I have also used an OBDII scanner to pull codes and didn't get any. The BAS and ASR lights are both on. I am at a loss to what may be causing this problem, but am afraid to bring it in to the dealer because I know they will just start replacing parts. Has anyone experienced this in there cars or knows of the cause and more importantly, the fix?

Reply With Quote
  #2  
Old 07-30-2003, 03:33 AM
sunil190e-1.8's Avatar
Registered User
 
Join Date: Jun 2002
Location: uk
Posts: 236
when you state BAS do you mean the ABS light?

If so then ,it is likely that the OVP(overvoltage protection relay) is faulty.-check the fuses on it-if blown, replace them,if the problem still persists ,then the the relay itself is faulty.

sorry, but do not know where the relay is located,maybe someone else will be able to help.
Reply With Quote
  #3  
Old 07-30-2003, 11:09 AM
Registered User
 
Join Date: Feb 2002
Location: Bay Area, CA
Posts: 47
Thanks for the reply. However, I did mean BAS. I believe it stands for Brake Assist System. I also checked and found out that this vehicle does not have an OVP. I am at a loss to what could be causing this problem. Any other ideas? Please help. Any input from the techs would be greatly appreciated. I cannot apply gas at all, even if I floor the gas pedal. The problem still persists this morning. I also tried turning the wheel from lock to lock to reset anything, but that didn't help.
Reply With Quote
  #4  
Old 07-30-2003, 03:58 PM
Registered User
 
Join Date: May 2002
Posts: 40
basics first

Have your battery tested by autozone asap... try using a known good battery in the meantime and if you can get it started get the alternator tested at autozone as well. Check your ground wires. Hopefully it is just a bad battery made worse by jumping.. wild tach fluctuations can mean the alternator is going as well.
Reply With Quote
  #5  
Old 07-30-2003, 04:05 PM
Registered User
 
Join Date: Feb 2002
Location: Bay Area, CA
Posts: 47
I'm sorry, I forgot to mention that I replaced the battery with a brand new MBZ battery and the pro blem still persists. Anyone?
Reply With Quote
  #6  
Old 07-30-2003, 04:56 PM
inspector1
Guest
 
Posts: n/a
I am guessing on this soooo..

I speculate that the battery jump caused a voltage spike/ or current surge within the system, in todays newer computer controlled vehicles, it is similiar to a surge in the home that shuts down the home PC.

From reference material:

On most models the BAS and the ABS are integrated. On models 168 the voltage is supplied to the BAS control module ( N48) via the fuse relay box (F1). Check this fuse and relay.

On models 129,140 it is supplied via the base module ( N16/1), on models 163,170,202,208, 210 and 220 via the relay (K40). Check these for voltage, shorts,opens etc.

Hope this helps, if further clarification is needed I can dig into more reference material.
Reply With Quote
  #7  
Old 07-30-2003, 05:16 PM
Registered User
 
Join Date: Feb 2002
Location: Bay Area, CA
Posts: 47
inspector1,

Thanks for the reply. Would you happen to know where this relay is located?

Thanks,
Chris
Reply With Quote
  #8  
Old 07-30-2003, 05:53 PM
inspector1
Guest
 
Posts: n/a
Not having much luck finding it on a schematic and I'm running out of time here at work

I'll look more tomorrow.
Reply With Quote
  #9  
Old 07-30-2003, 06:27 PM
blackmercedes's Avatar
Just a guy
 
Join Date: Dec 2000
Location: St. Albert, Alberta, Canada
Posts: 3,492
I can't help with the problem, but I hope folks reading the thread take note of what caused the difficulty: Boost-starting a late model computer equipped vehicle.

I owned an auto-electronics store and boosting a car meant you were instantly unemployed. No second chances. We paid out too much money to replace electronic brain devices on cars.
__________________
John Shellenberg
1998 C230 "Black Betty" 240K

http://img31.exs.cx/img31/4050/tophat6.gif
Reply With Quote
  #10  
Old 07-30-2003, 10:38 PM
SteveStromberg's Avatar
PORSCHE PARTS
 
Join Date: Apr 2003
Location: Niewport Beach Calif
Posts: 54
When jumping a car you need to turn on the headlights in BOTH cars this will absorb any Voltage spike. Steve
Reply With Quote
  #11  
Old 07-31-2003, 07:26 AM
wjm's Avatar
wjm wjm is offline
Statman
 
Join Date: Dec 2000
Location: Suburban Detroit, MI
Posts: 692
Thanks Steve,

So, the answer to "how to jump a Mercedes correcty" is to turn both vehicle headlights on, eh?

I'll have to remember that one. I mean, you gotta do SOMETHING if you're out there in the middle of nowhere with a bad battery.
Reply With Quote
  #12  
Old 07-31-2003, 07:59 AM
Registered User
 
Join Date: Jun 2003
Posts: 123
I also have learned the hard way with jumping -- thankfully the car a Jeep GC was still under Warr. -- it was about 6 months old and I was using it to Jump another car -- I did think that this was even safer, although I do not now how I got that idea.

After that, I purchased one of those jumper batteries -- the thing is great -- we keep it in the office -- it has saved us many times over the years.

We have also used it when changing a weak batt - to keep all the memory chips powered.

Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 06:57 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page