Re: [MBZ] 1985 300D - Intermittent glow light while driving

2015-06-25 Thread Max Dillon via Mercedes
Horn issue sounds like a ground problem.

Glow plug issue may be the diagnostics in the relay telling you that the system 
has a problem (usually one or two burned out glow plugs, but maybe related to 
the horn issue).
-- 
Max Dillon
Charleston SC
'87 300TD
'95 E300
___
http://www.okiebenz.com

To search list archives http://www.okiebenz.com/archive/

To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com



Re: [MBZ] 1985 300D - Intermittent glow light while driving

2015-06-25 Thread Rich Thomas via Mercedes

Bad ground somewhere?  Check the connection between engine and body.

--R

On 6/25/15 8:17 AM, Mike Esh via Mercedes wrote:
Last night while driving home my glow light flickered on and off 
several times and then on my way to work this morning it came on 
several times while driving.  At one point it stayed on solidly for 
more than a minute.  Then it flickered a few more times and went out 
and did not come back the rest of the drive.  I am concerned the glow 
plugs are coming on when not needed and will eventually burn 
themselves out.  In addition to this issue the horn is only working 
intermittently and when I try to activate the horn (with the key on 
and the car not running)the dash lights dim as if it is trying to 
work.  The only work I have done recently was to replace rear 
calipers, change out one heater to block hose and spray the underside 
of the car with undercoating.  I checked and rotated all fuzes.  All 
looked good.  Any thoughts on what to look for?

Thanks,
Mike´╗┐

Michael E. Esh
me...@horizonenv.com
michael...@mac.com
(C) 231.894.5505
___
http://www.okiebenz.com

To search list archives http://www.okiebenz.com/archive/

To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com




___
http://www.okiebenz.com

To search list archives http://www.okiebenz.com/archive/

To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com



Re: [MBZ] 1985 300D - Intermittent glow light while driving

2015-06-25 Thread Curly McLain via Mercedes
Yes, glow relay is a signal, but I can't remember what.  check/change 
GPs and the relay should be normal, unless it is a signal that the 
relay is failing.






Horn issue sounds like a ground problem.

Glow plug issue may be the diagnostics in the relay telling you that 
the system has a problem (usually one or two burned out glow plugs, 
but maybe related to the horn issue).

--
Max Dillon
Charleston SC
'87 300TD
'95 E300


___
http://www.okiebenz.com

To search list archives http://www.okiebenz.com/archive/

To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com



Re: [MBZ] 1985 300D - Intermittent glow light while driving

2015-06-25 Thread Jim Cathey via Mercedes

There are only a few ground clusters, it's well worth the time to
disassemble, clean, and reassemble them.  Many weird things can
be cured that way.  Also check and possibly clean contacts in
the fuse box; check/clean/replace  fuses.  The horn doesn't
have a relay, it's a circuit that's as simple as it can get.
Either the power feed (fuse) side is weak, or the ground is.

The GP relay is fairly stupid in that vintage, so if it's
coming on it's either sick inside, or the key signal to it
is flickering.  (That can be the ignition switch.)  It doesn't
have much of an agenda.

And of course, don't forget the 'mother lode': the battery
and its connectors.

-- Jim


___
http://www.okiebenz.com

To search list archives http://www.okiebenz.com/archive/

To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com