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fill reservoir too high, it leaks out of the passenger side headlight wiper

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

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WhatAmIDoing
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fill reservoir too high, it leaks out of the passenger side headlight wiper

Post by WhatAmIDoing » Sun Sep 30, 2018 12:19 am

If I fill my reservoir too high, it leaks out of the passenger side headlight wiper. Do you know where it's leaking?
'98 S70 T5M - 276,000+mi - forever a project
'99 S70 "AWD" - 220,000+mi - wrecked :cry:
Knows enough to be dangerous :wink:

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Clemens
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Re: fill reservoir too high, it leaks out of the passenger side headlight wiper

Post by Clemens » Mon Oct 01, 2018 12:39 am

my reservoir overflows somewhere else when filled all the way up. since it is quite big, i just don't fill it all the way anymore. do you park your car on a steep driveway with the front facing down? if so, your problem is problem might be just that. if the headlight nozzle is lower than the reservoir it will leak.
Summer: 1996 855 R
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voltech1
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Re: fill reservoir too high, it leaks out of the passenger side headlight wiper

Post by voltech1 » Mon Oct 01, 2018 6:26 am

There is a check valve behind the passenger headlamp that is leaking. You can find the washer hose running between the headlamps. If you gently pull the hose going behind the passenger lamp it should show itself. The valve will need replacement.
96 855 turbo 235k
00' v70r 156k w/blown motor

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