Headlight Washer Motor Keeps Running-96 SL500

[jdonnee]

I have a problem with one of the headlight wiper blades on my SL 500 not moving from the upright position. This seems to cause the washer fluid motor to run continuously.

a. I am assuming that since one headlight wiper blade works fine that there are two motors for the wipers. Where is the right motor located?

b. Where is the connector that I can disconnect that will turn off the washer fluid pump to the headlight wiper units.

I want to stop the washer pump until I can trouble shoot the wiper blade motor.

Thanks

[cool]

the wiper motor is right underneath the headlamp

[jdonnee]

Thanks for the reply. Do you know where I can disconnect the washer pump to the headlights?

Thanks

[wbrian63]

The washer pump for the headlamps is plugged directly into the washer reservoir. The actuation of the headlamp wipers is what triggers the pump to run, and since one of your wipers won't "park", the pump keeps running.

Depending on where the reservoir is, unplugging the pump may or may not be an easy exercise.

You could also try unplugging the wiper motor - if your car is the same as mine, the wiper motor actually plugs into the headlamp housing. That might be an easier solution. Once the motor is disconnected from the electricals in the car, there's no signal to the pump.

[softconsult]

If it's like most MB's there are two small pumps that press into the front of the washer fluid tank. You should easily be able identify the one supplying the headlight wipers by following the hose routing.

Unlike the 300E's, mine on the W140, is secreted away and must be accessed from below. Your's may be similarly located.

Steve