[R129 SL] Electrical problems

[Paul Samarin]

That's at least 3 of us in So.Cal.  We should do a rally or something.

Meanwhile, I have the exact prob w/ my turn signal stalk.  My indie,  
whose judgment I trust, says it's a replacement-only issue which is  
quite expensive.  Recommendation was to live with it.  I'm not having  
the A/C issue at all.

Paul
90 500 SL
Newport Beach, CA


On Jun 5, 2007, at 9:47 AM, <gregorio at weststargroup.net> wrote:


> Speaking of intermittent electrical problems, I have one as well I  

> would like to see if anyone has a fix.  When using the A/C, the  

> blowers go from the front vents of the dash to the top vents (and  

> seems to stay stuck there), back and forth, and the panel buttons  

> do very little to stop it.  Like Bob in San Diego, my car never  

> sees rain (I live in Chatsworth, CA), but it's darn hot here  

> sometimes so A/C is a must!

>

> Thanks to all!

>

> Greg Conte

> 1991 500SL

> Chatsworth, CA

> ----- Original Message -----

> From: Wesley, Bob

> To: SL Mailing List

> Sent: Tuesday, June 05, 2007 8:30 AM

> Subject: Re: [R129 SL] Electrical problems

>

> Rich,

>

>

>

> I have a similar problem on a very intermittent basis with my ’92  

> as well.  When I signal for a left turn the warning lights will all  

> flash on for a second.  This doesn’t happen very often but is  

> always disconcerting.  I have not experienced the cruise control or  

> wiper issue, but I rarely drive this car in the rain (Doesn’t rain  

> much in San Diego, Ca.). I will be interested to hear if anyone  

> else has had a similar problem and has a fix.

>

>

>

> Bob

>

>

>

> From: r129list-bounces at mbcoupes.com [mailto:r129list- 

> bounces at mbcoupes.com] On Behalf Of Oldbenz1 at aol.com

> Sent: Tuesday, June 05, 2007 8:23 AM

> To: r129list at mbcoupes.com

> Subject: [R129 SL] Electrical problems

>

>

>

> On a recent long hiway trip,  the '92 500SL was exposed to one of  

> its rare rain experiences during which I discovered some annoying  

> problems.  Wiper switch was intermittent, with the low-speed and  

> interval wiper settings working only occasionally (mostly not at  

> all).  Fortunately, the high speed wiper position was OK so I was  

> able to drive safely.  Also, when signalling lane changes, the  

> cruise control would act up, sometimes shutting off, other times  

> speeding up as when the cruise lever is moved to the "Accelerate/ 

> Set" position.  When this happened, the warning lights on the  

> instrument panel would go crazy so I felt like I was playing a  

> pinball machine- different colored lights flashing everywhere, fuel  

> gauge instantly dropping to zero, red oil pressure light and seat  

> belt light flickering, etc.!    This anomaly was seen whether the  

> wipers were on or  not.  I suspect the combi switch is the culprit,  

> although maybe there is a wiring harness in the steering column  

> that is at fault.    My question is can the combi switch be taken  

> apart so electrical contacts can be cleaned?  Failing that,  is  

> replacement of the combi switch likely to solve these problems?  My  

> concern is the cruise control problem that shows up when signalling  

> lane changes- it would seem that the combi switch functions and the  

> cruise control would be two separate systems.

> Rich

>

>

> **************************************

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>

>

>

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Paul Samarin
pauls at sbcglobal.net



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