SPONSORED LINKS

1976 Mercedes Benz 450sl windshield wipers

Tiny
RICHARD URBAN
  • MEMBER
  • 1976 MERCEDES BENZ 450SL
  • 5.3L
  • V8
  • RWD
  • AUTOMATIC
1. Windshield wipers do not home
2. Windshield wipers work in fast, slow, stop only
3. Control switch (slow, fast, variable, wash, stop) is built into the switch (Ron Francis) aftermarket custom car switch
4. What is the "impulse" switch inside the wiper?
5. Before I experiment with disconnecting this "impulse" switch (unsolder) I assume the motor is just that a motor and was originally controlled by the switch on the post. And that it can be controlled by any switch?
6. Mercedes manual gives no clue what this "impulse" does, local MB mechanics are clueless and suggest buy a new motor assembly for $300.00 plus, and can't read the schematic to assist.

Thanks for your help.
SPONSORED LINKS
Wednesday, December 11th, 2013 AT 3:04 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I'd first suggest you contact Ron Francis as it's a custom switch/control to see if they have a diagram online. The impulse allows the wipers to go on every few seconds and also will effect the Park mechanism-meaning they go home. From what you describe the impulse control is bad but not sure how it's hooked up. In later American cars you can just replace the circuit board to fix that. You may be able to do the same with the Ron Francis hook up. So contact them they should be on the net as they are still in business
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, December 12th, 2013 AT 6:17 AM

Please login or register to post a reply.

Related Wiper Switch Content

Sponsored links