Loss of...electrical (asking again) - Mercedes-Benz Forum

LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 08-16-2006, 05:07 PM Thread Starter
BenzWorld Extremist
Prana25's Avatar
Date registered: Mar 2006
Vehicle: Older, 4 wheels, Functioning Stereo
Location: Sacramento, CA - US
Posts: 956
Mentioned: 0 Post(s)
Quoted: 7 Post(s)
(Thread Starter)
Question Loss of...electrical (asking again)

Sorry, but the 208 forum hasn't given any ideas. So, here's the problem:

99 CLK430

I will park the car, turn off the ignition and I lose all electrical power. Everything... sometimes it happens immediately, other times it waits until I start walking away (and the alarm goes off???). Whenever it happens, it usually just takes slamming the car door closed to get the power back (the sudden jolt seems to do it).

This happens about 3 times a week.

Rarely, I'll be driving and the dash will seem to flash and the BAS light comes on... the same as when the power is restored when it happens while parked. I've never actually lost power though while driving. Just a flash.

The only thing that's changed is:

Factory alarm upgraded with shock sensor.

Aftermarket stereo - however, all connections are very secure and this wouldn't explain the glitch while driving.

Replaced Crankshaft Position Sensor - It actually started happening after this, but I don't see how it could really be a cause?

Any... ANY ideas would really be appreciated. My biggest grip about this is the 5 minutes it takes to reset my stereo security and settings.

Prana25 is offline  
Sponsored Links
post #2 of 6 (permalink) Old 08-16-2006, 05:12 PM
BenzWorld Member
Date registered: Apr 2006
Posts: 386
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Why not go to a Merc dealer and get them to check it over? Make sure you tell them the changes you have made from standard. Good luck. Hope you find it soon. Odd one!

ML350cdi Sport
E220cdi Estate Avantgarde (sold)
S class 320 cdi 2005 (sold)
hawk20 is offline  
post #3 of 6 (permalink) Old 08-16-2006, 05:13 PM
Administratoris Emeritus
GeeS's Avatar
Date registered: Aug 2002
Vehicle: 2021 SL770
Location: Fountain Hills, AZ
Posts: 45,218
Mentioned: 2 Post(s)
Quoted: 751 Post(s)
I hesitate to mention this because it's so obvious, but have you cleaned and tightened the battery cables?

"If spending money you don't have is the height of stupidity, borrowing money to give it away is the height of insanity." -- anon
GeeS is offline  
post #4 of 6 (permalink) Old 08-16-2006, 05:38 PM
BenzWorld Senior Member
Date registered: Apr 2006
Vehicle: 12E350, 12ML350, 08C350
Location: So. Cal. (OC)
Posts: 445
Mentioned: 0 Post(s)
Quoted: 4 Post(s)
It seem that there is a loose battery (or fuse) connection somewhere in your car. Check the front (driver side fuse box, engine compartment) & rear ( lift the liner, it's on the right side of the trunk), also ,be sure the battery post are all tight. If everything are good, head to your dealer is the last thing to do. I had my car's recall for the harmonic balancer , at the dealer after they replaced the harmonic balancer, then the car would not start, it point to crank shaft position sensor is bad, they replaced it too (cost me $550.00),I do not have the choice, because the car is in their shop , but after I got the car there is NO PROBLEMS ever since (10M miles) .Regards.
00CLK208 is offline  
post #5 of 6 (permalink) Old 08-16-2006, 05:54 PM Thread Starter
BenzWorld Extremist
Prana25's Avatar
Date registered: Mar 2006
Vehicle: Older, 4 wheels, Functioning Stereo
Location: Sacramento, CA - US
Posts: 956
Mentioned: 0 Post(s)
Quoted: 7 Post(s)
(Thread Starter)
Well... I have checked the battery cable and it's tight. I replaced the positive terminal when I repaced the stereo (it now has 2 leads off of it with an inline 120 Amp fuse). I thought it may be an issue with the battery, but then again... shouldn't you be able to remove the battery cable once the car is running (because, at that point, it's running from the alt.)? That wouldn't explain the rare glitch while I'm driving.

I can't go to the dealer because it can't be replicated on demand. I'll check the fuse, but because of when it started, I'm really wondering if there's something more to the CPS? I don't know enough about this component to know if it could be faulty.

Last edited by Prana25; 08-16-2006 at 05:56 PM.
Prana25 is offline  
post #6 of 6 (permalink) Old 08-17-2006, 10:42 AM
BenzWorld Elite
Michael Pillay's Avatar
Date registered: Oct 2003
Vehicle: 500SE AMG, E350 4matic, GL 450
Location: Michigan
Posts: 5,312
Mentioned: 0 Post(s)
Quoted: 91 Post(s)
Some alarms go off when there is a voltage drop. Can you remove the shock sensor? I would also have the alternator checked. Sounds like a real pain. You might want to get a good indy garage and have them track down your problem.

Michael Pillay is offline  
Sponsored Links

  Mercedes-Benz Forum > General Mercedes-Benz Forums > General Mercedes-Benz

Quick Reply

Register Now

In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Topic Author Forum Replies Last Post
Loss of electrical - Updated symptoms Prana25 C208/A208 CLK-Class 2 07-31-2006 11:08 AM
Loss of electrical - 2nd issue in one month Prana25 C208/A208 CLK-Class 4 07-17-2006 09:17 AM
Sudden power loss 2.6 (electrical) rjb190e W201 190-Class 2 05-12-2006 07:17 AM
1984 380SE an electrical problem causing power loss?! IMnotDAVIDxnsx General Mercedes-Benz 4 09-06-2004 03:26 PM
Loss of electrical power-not alternator ajstony W201 190-Class 4 03-18-2004 10:15 AM

Posting Rules  
You may post new threads
You may 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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Title goes here

video goes here
description goes here. Read Full Story
For the best viewing experience please update your browser to Google Chrome