Author Topic: what can cause the washer pump to activate when I start the wipers?  (Read 3632 times)

erickmarciano

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  • Canada, Quebec, montreal
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Hi guys .
when I activate the wipers the washer pump also activates as long as I pust the button.they washer pump also activates when I push the stalk .can't get the wiper motor to activate without it sending washer fluid.
Thanks for your help
Erick
1994 E500 W124
1971 280sl
1989 Porsche 930 coupe
1988 e30 m3
2001 ducati mh900
2006 ps1000
1962 Vespa GS160

114015

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Hi Eryck,

Weird. ???
That's not normal.

Pusching the turnsignal lever towards the steering column should activate only the wipers, nothing more.
Washer pump to be activated by pressing the lever forward - as indicated in the Owner's Manual.

If both engage whilst switching only one function, most likely the wiper-engaging mechanism (or electrical mechanism) in the base of the wiper stalk is malfunctioning. Can be disassembled and checked.

Or - if you have - try another wiper and indicator switch. Then you know for sure.

Good luck!

Achim
Achim
(Germany)

Benz Dr.

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Sounds like it's worn out or something is broken inside the switch. Once they screw up you're looking at a replacement. Sometimes you can fix small problems but there are no replacement parts.

 I have a new one in stock if you find it can't be fixed.
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC