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Old 04-04-2010, 07:12 PM
tbomachines's Avatar
Join Date: Mar 2009
Location: Philadelphia
Posts: 5,983
Washer fluid question

The PO of my 300E used some washer fluid that leaves trails everywhere. I assume it is because of the heating, but wherever it sprays it leaves a thick white film. I found that out the hard way on the first day I owned it. I used most of the washer fluid during a heavy rainstorm last week in an attempt to dilute it and get rid of the stuff in the reservoir but the stuff just will NOT come off.

My question is this: has anyone else had to get the white stuff off their windshield from bad washer fluids? What works!? I detailed my car today and a good scrub from the washcloth didn't work, windex didn't work, Armor-all windshield wipes didn't work. Several windshield washes while getting gasoline also didn't work. How the heck do you get it off?

Also, what kind of damage might that stuff leave in the system? The pump is still strong but I'm worried about buildup. Also are there any easy-to-get washer fluids that work fine? Haven't checked on MB brand fluid yet, kind of wondering what my options are at this point (or if there are any at all). Thanks!!

Current stable:
- 2004 Mazda RALLYWANKEL
- 2007 Saturn sky redline
- 2004 Explorer...under surgery.

Past: 135i, GTI, 300E, 300SD, 300SD, Stealth
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Old 04-05-2010, 02:55 AM
mbzman's Avatar
Registered User
Join Date: Nov 2008
Location: Canada
Posts: 600
I have heard of Rain X washer fluid causing problems in the heated tank and washer jets. Personally I just use the standard blue washer fluid year round and it works just fine. The extra cost for the premium washer fluid isn't worth it if it is going to damage the washer system.

You may want to try rubbing a clay bar over the window to remove the film.

1989 300CE
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