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E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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  #1  
Old 04-23-2014, 08:36 AM
evanwray evanwray is offline
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Location: johannesburg
 
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Mein Auto: bmw e36 325i
325i wipers run continuously.

As with most problems, it starts with just a hint to cause doubt that it exists and then suddenly one day it goes totally postal.!
My wipers swiped once while I was driving and I figured I must have brushed the stalk with my hand. A week later they swipe once again, and this time I know it wasnt me that did it. Now suddenly they run continuously as soon as I switch on the ignition.
Thinking there could be a short, I disconnected the stalk control connector to eliminate the controls as the problem, but alas they still run.
I removed the wiper motor and its control arms(what a major pita that was!) cleaned out the motor, which was surprisingly very clean and in good condition considering the cars age, and checked the function of the home position switch which was in perfect working order.
The car has the large double coil relay WI-WA LOWII in it, which clearly energises the moment the ignition is switched on. On inspection it looks ok, but one can never really tell with these things.
My question is, can anybody think or know of anything else that I could check or may have missed short of replacing this relay as BMW SA want a large fortune for it and have a non return policy on electronic parts if its not the issue. Regards.
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  #2  
Old 04-23-2014, 11:06 AM
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dc_wright dc_wright is offline
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Mein Auto: '96 328iC, '04 325Ci
Sounds like your wiper control module has gone bad. Since the E36 has speed variable wipers, there's an electronic module that interfaces to the instrument cluster that actually controls the sweep of the wiper blades.

http://www.ecstuning.com/ES169272/PriceAlert/
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Last edited by dc_wright; 04-23-2014 at 11:11 AM.
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  #3  
Old 04-25-2014, 05:15 AM
evanwray evanwray is offline
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Mein Auto: bmw e36 325i
The control module is the one that im referring to that BMW want a sh*t load of money for.
Maybe I will try a junkyard instead.
Thanks.
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  #4  
Old 04-25-2014, 08:40 AM
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dc_wright dc_wright is offline
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Mein Auto: '96 328iC, '04 325Ci
Quote:
Originally Posted by evanwray View Post
The control module is the one that im referring to that BMW want a sh*t load of money for.
Maybe I will try a junkyard instead.
Thanks.
I think getting one from a salvage yard would be a good move. Just judging from how seldom we see a post for this problem, the module seems to be pretty low failure rate, so your probability of being able to get a functional one through salvage looks really good.
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  #5  
Old 04-25-2014, 08:46 AM
hnaz hnaz is offline
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Mein Auto: 128i M, M3, 325is M-Tech
Holy crap, $70 for that tiny module??
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  #6  
Old 04-25-2014, 09:33 AM
Kirkush04 Kirkush04 is offline
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Mein Auto: BMW 318i 1995
What was the answer to your wiper problem? My 1995 318 the wipers only work on high speed no low or intermittent ??? any ideas
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  #7  
Old 04-25-2014, 09:41 AM
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hornhospital hornhospital is offline
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Mein Auto: 1995 318is / 1993 325is
Most likely yours is module problems, too. My 318 went through several steps of failure: Wouldn't work on intermittent, then wouldn't work on low, then wouldn't run on high unless it started from the parked position. A used replacement wiper module cured all of that.


The best fix for all of it is RainX.
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Last edited by hornhospital; 04-25-2014 at 09:42 AM.
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  #8  
Old 04-25-2014, 09:53 AM
Kirkush04 Kirkush04 is offline
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Mein Auto: BMW 318i 1995
Thanks for the help I will replace the wiper control module, where is it located?
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  #9  
Old 04-25-2014, 10:08 AM
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hornhospital hornhospital is offline
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Mein Auto: 1995 318is / 1993 325is
Behind the glove box. Google "E36 glove box removal" to see how to get it out (and more important, to get it back in without it ending up sagging). The wiper module is here:
Attached Thumbnails
Click image for larger version

Name:	wiper module location.jpg
Views:	15
Size:	49.4 KB
ID:	435701  
__________________
Quotes to live by:
guessing gets expensive...drivinfaster
nothing is more expensive than a cheap BMW...c4harpe13
buying a ratty example (of a BMW) is a parasitic relationship.(and you ain't the mosquito) 7pilot

Ken Kanne, Silverhill, AL, E36 Forum Mod/Craigslist addict/Hoarder of all sorts of stuff
BMW-CCA #441426
1995 318is "Bebe"; 1993 325is "Elvira" 1985 635CSi "Katja" 1984 633CSi "Sylvia"
HAVE I HAD MY MEDS YET?


Last edited by hornhospital; 04-25-2014 at 10:10 AM.
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  #10  
Old 04-25-2014, 10:11 AM
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hornhospital hornhospital is offline
D'oh, You kids!
Location: In the Grumpy Chair
 
Join Date: Jan 2008
Posts: 15,120
Mein Auto: 1995 318is / 1993 325is
Here's a better drawing of the module location. It's #7:
Attached Thumbnails
Click image for larger version

Name:	wiper control module.jpg
Views:	17
Size:	158.7 KB
ID:	435704  
__________________
Quotes to live by:
guessing gets expensive...drivinfaster
nothing is more expensive than a cheap BMW...c4harpe13
buying a ratty example (of a BMW) is a parasitic relationship.(and you ain't the mosquito) 7pilot

Ken Kanne, Silverhill, AL, E36 Forum Mod/Craigslist addict/Hoarder of all sorts of stuff
BMW-CCA #441426
1995 318is "Bebe"; 1993 325is "Elvira" 1985 635CSi "Katja" 1984 633CSi "Sylvia"
HAVE I HAD MY MEDS YET?

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