On Thu, Jun 4, 2009 at 9:39 PM, andrew strasfogel <astrasfo...@gmail.com>wrote:

> Randy, you have it correct.  Unfortunately, SWMBO doesn't see this as a
> virtue, but as a sign that I have totally lost all my faculties.
>
>
>
>
>
> On Thu, Jun 4, 2009 at 2:42 PM, R A Bennell <b...@mts.net> wrote:
>
>> So, Andrew, are you trying to corner the market on old wagons?
>>
>> Randy
>>
>> -----Original Message-----
>> From: mercedes-boun...@okiebenz.com
>> [mailto:mercedes-boun...@okiebenz.com]on Behalf Of andrew strasfogel
>> Sent: Thursday, June 04, 2009 8:29 AM
>> To: Mercedes Discussion List
>> Subject: [MBZ] Possible cause of loss of front wipers in w123 300TD
>>
>>
>> I purchased a second 300TD w123 wagon recently.  The rear wiper motor was
>> nonfunctional (it had actually come apart), and testing revealed the rear
>> wiper relay was also faulty.  I had brought along a spare rear wiper motor
>> and plugged that in (also substituted a good rear relay) but testing
>> showed
>> my spare motor was bad too.  Bummer.   I never thought to check the front
>> wipers.  Anyway, driving back home there was a severe storm and to my
>> disappointment the front wipers didn't work.  :((  I checked the fuse box
>> and sure enough, the number 6 red fuse (16 amps) was blown.  I swapped out
>> the fuse for a known good 16A fuse from a power window circuit, but the
>> wipers still wouldn't work.  So I waited out the storm under the h'way
>> overpass; after the rain stopped I drove home without incident.
>>
>> The PO swears that the front wipers always worked, and that testing the
>> rear
>> wiper system might have caused the front circuit to fail.  Is it possible
>> that I burned out the front wiper relay?  The other  functions of the
>> combination switch (L and R turn signals, high and low beam) function
>> perfectly.  As far as I can tell the front and rear wipers are on the same
>> fuse (although I could be wrong about this).
>>
>> Has anyone experienced a sudden loss of their front WS wipers - caused by
>> something other than a blown fuse?  Is it possible that just the wiper
>> circuit within the combination switch has selectively shorted out?  Do
>> relays fail catastrophically or selectively, e.g. allowing for one wiper
>> speed rather than all three?
>>
>> Andrew
>> W123 300TD (2)
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