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King_GH
Extreme Veteran
Date registered: Oct 2011
Location: London
Vehicle(s): 95 G300 RHD
Posts: 324
| Screen Washer/Wiper pump G300 / 95
My front screen washer pump stopped working at the front. The back works okay. I thought it’d run out of the liquid washer put apparently not so as the back is fine. All the fuses check out. Are there 2 pumps involved here?
Because that’s the best logic l can figure so far. Is there a relay that controls the pump. It may be worth checking before I start looking for a replacement pump. Also if I have to change the pump where is the front one it located? |
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Braingears
Expert
Date registered: Apr 2006
Location: St Petersburg, FL
Vehicle(s): G320 & ML320
Posts: 1450
| RE: Screen Washer/Wiper pump G300 / 95
The pump on mine is located on inside of the front right wheel well. I have already purchased a replacement motor for mine, but haven't changed it out yet. |
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AlanMcR
Expert
Date registered: Apr 2006
Location: US, CA, Los Altos
Vehicle(s): G300DT E300DT 230SL
Posts: 3500
| RE: Screen Washer/Wiper pump G300 / 95
King_GH - 11/14/2018 7:08 AM My front screen washer pump stopped working at the front. The back works okay. I thought it’d run out of the liquid washer put apparently not so as the back is fine. All the fuses check out. Are there 2 pumps involved here? Because that’s the best logic l can figure so far. Is there a relay that controls the pump. It may be worth checking before I start looking for a replacement pump. Also if I have to change the pump where is the front one it located? On mine there is one pump that provides service to the front and back squirters. It runs clockwise for one and conuter-clockwise for the other. Pop the hood and have someone try to squirt the back window. You should be able to find the pump quickly. If it has two outputs then it operates just like mine, and you have an electrical problem somewhere upstream of the pump. If it only has one output, then you'll have to hunt down the other pump. Mine was seized when I got it. Took it apart, cleaned and lubed it, has worked fine ever since.
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King_GH
Extreme Veteran
Date registered: Oct 2011
Location: London
Vehicle(s): 95 G300 RHD
Posts: 324
| RE: Screen Washer/Wiper pump G300 / 95
I have identified the pump. How do I take those hoses out. Do i use sheer force? It doesn't seem like an easy one to disconnect. |
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H1LM002G55
Expert
Date registered: Mar 2010
Location: S Florida / Geneva / Jeddah
Vehicle(s): 500 GE, G55, LM002, H1
Posts: 1796
| Re: Screen Washer/Wiper pump G300 / 95
The washer fluid hoses get stiff and hard with time and age. If I was you I would plan on replacing them, too. The hose is sold by the meter at your MB dealer. |
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Aircruiser
Extreme Veteran
Date registered: Aug 2011
Location: Atlanta GA
Vehicle(s): 2000 G500, 1986 300GD, 2017 Porsche Cayenne Hybrid
Posts: 364
| Re: Screen Washer/Wiper pump G300 / 95
Post some pictures of the pump and hoses when you repair, King.
Mine just started leaking, not sure where from as of now. I can feel it just can't see it. On the 2000 G500 the tank and pump are tucked high in-between the inner and outer fenders near the right firewall.
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