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Old 03-19-2010, 01:30 AM
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Join Date: Mar 2010
Posts: 5
W140 S320 Washer Reservoir Replacement

Hello ! '97 S320 - To remove the washer reservoir, ALLDATA says one must remove the bumper (& of course the right headlight assembly). Can anyone confirm this ? ALLDATA doesn't show how to remove the bumper (perfect). I do see where it must be removed from below. I don't yet know if it's leaking - PO says it is.

Thx - Dave H.

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Old 03-19-2010, 08:04 AM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
Yes, correct info.

Bumper removal is simple, about 6 bolts.
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Old 03-19-2010, 09:46 PM
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Join Date: Mar 2010
Posts: 5
Thanks - I've not looked under the bumper yet, but imagined it would have been harder than that (just 6 bolts). I suppose I should be quite careful with it, though. I had the bumper off my '73 220D once, just trying to get all the paint cleaned. Well, weather's supposed to be great for a change on Sat, but not Sun, so we'll see what I see.

Thanks - Dave H.
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Old 12-16-2014, 01:49 PM
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Join Date: Dec 2014
Posts: 5
I know it's an old thread, but for the benefit of members everywhere who are dealing with their front passenger headlight, front bumper removal is easy (on my 95); it does come off with only 6 bolts (two upper centre that have the rubber hood striker bumpers attached, and one each hidden under the tow hook / temp sensor bumper covers, and one smaller one each just inside the front inner fender lining lip. Things I learned: There is a real rubber lining attached to each front plastic fender liner which i sprayed with viny/rubber preservative (autoglym) before putting it back on (completely seals the splashes from the inner fender/bumper areas). There is also a longer matching one that supposed to continue above / all around (I am missing this one on one side). Anyway with the bumper off you can waggle the filler neck for the windshield washer such that you have easier access to Bolt number 7 on the attached diagram. (My car had was missing bolt 7 and bolt 10 after some cheap PO repair, which I ordered from Mercedes). The only thing left is to obtain another plastic plug to replace the one I broke holding the radiator mesh surrounding the 2 electric fans. By the way when you button it all back up you can silicone spray the side glides, and check the factory spec. clearance between each top side of the bumper and the upper fender (with a rubber seal in between) to 5 mm. The metal/plastic glides can be adjusted upwards if needed so the bumper appears tighter.
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W140 S320 Washer Reservoir Replacement-diagram.jpg  

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