[W126 Coupe] Electrical / start problem

[Pete Williams]

You could have lost the ground to the engine. Back feeding could be causing
weird stuff to happen.

 

Pete

 

From: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com]
On Behalf Of Dick Spellman
Sent: Friday, August 22, 2008 5:01 PM
To: Mercedes Coupes Mailing Lists
Subject: Re: [W126 Coupe] Electrical / start problem

 

This is a new one.  Does the wiper only do this when you are holding the key
over for the starter to crank?  Does the wiper stop after the engine has
started?  If so, perhaps the ignition switch or ignition harness at the rear
of the ign. switch.  That will be a tough one to sort out and require some
time under the dash with a dc rpobe while trying to replicate the condition.
 If not for the wiper, I'd look at connections to the starter for corrosion.
Regulator is fine where your charging rate is good.

Just a few guesses I'm afraid.

Dick

On Fri, Aug 22, 2008 at 5:21 PM, Shin Takei <shinzbox at aol.com> wrote:

Hi all,
Recently my '91 560 SEC has had slow starting. When the ignition is turned
on, all the lights in the instrument panel come on and when cranked, it is
slow and the wiper turns on without the switch being on.  Then it starts and
maintains until the engine is shut off and the same is repeated. All
indicator lights including charging turns off when the engine is on. This
has been going on for at least two weeks so I checked the battery voltage
which reads 12.45 with engine off and 13.65 with engine on. So it can't be
the battery and it seems to be charging. Any ideas on what it could be? Some
short along the way? dieing regulater?
Thanks to all of you experts.

Shin


The MB Coupes Website!
W126 SEC Mailing List
Postings remain property of MB Coupes, L.L.C.

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.pairlist.net/pipermail/mbcoupes/attachments/20080822/87377c5c/attachment.html>