leak in windshield reservoir

millerboy · Post by **millerboy** » 07 Oct 2020, 13:12

When I pour into the reservoir it comes out under the car. How do I get access to the tank on my 2008 S80

Post by **RickHaleParker** » 07 Oct 2020, 22:27

millerboy wrote: ↑07 Oct 2020, 13:12 How do I get access to the tank on my 2008 S80

Remove the front bumper cover.

millerboy · Post by **millerboy** » 13 Oct 2020, 14:17

Thanks for the info.

Jdawgvolvo · Post by **Jdawgvolvo** » 29 Nov 2020, 09:39

Volvo Sweden has a good YouTube video on removing the front bumper cover when he fixed his headlight wipers.

The hoses on the tank to the wipers are high pressure not your regular washer fluid tubing.
There are several leak points on the system. Can be the tubing going to the headlight washers or can be the rubber grommets where they are attached to tank.

I had the same issue and got new grommets and issue was solved. Then I realized I also had a leaking headlight washer tube. Volvo sells the washer tubing for around $120 bucks. Not cheap but it has the correct connectors and worth the cost.

Volvo windshield fluid systems suck. I would rather do away with the headlight washers as they consume a lot of fluid and just become more things to fix.

Owned 4 Volvos and 3/4 of them have required repairs to the washing system. The only brand of car ive had to repair such system.....

arne27 · Post by **arne27** » 01 Dec 2020, 11:16

First thing to do is establish where the leak is. If any part of the tubing which goes from the engine firewall down to the reservoir, it's unlikely that they'd gush on to the floor, rather more of a trickle. ID this happens when you fill up, the first item to look at is where the tubing goes into the reservoir. (I don't have an S80 but a v70 2009 and this might well be similar). The pumpmotor itself fits into the bottom of the reservoir with a grommet and possibly a filter, though I know most aftermarket motors are not supplied with a mesh filter. This could well leak badly if it's out of place, even slightly, as I found out when replacing the motor. So if replacing, test if the grommet is not leaking before putting it all back together. Motors in the UK are found on an auction site for less than 10 bucks so may be the same from your location.
The other possibilities are tears in the tubing fixed to the motor and damage to the reservoir itself.
On the v70 the bumper cover does not need to be removed. There's a plastic piece fitted under the bumper which can be removed as well as a few screws on the wheel arch lining and access to the reservoir is then quite easy.

Jdawgvolvo · Post by **Jdawgvolvo** » 02 Dec 2020, 03:59

On the 2010 S80 you have to remove the bumper cover to get to the top of the tank where the full tube enters the tank. You definitely need to take the cover off to replace the tank.

The tubing itself you need to remove the headlight, bottom splash shield that attaches to front cover, and the inner fender plastic. You can get to the tubing that connects to the pumps that go into the tank.

There places for leaks:
High pressure tubing going to pumps
High pressure tubing going to headlight sprayers
Rubber grommets where tank inlet tube or washer pumps insert to the tank

In my case it was 2 out of the 3. System not designed well.

lntravler · Post by **lntravler** » 25 Oct 2021, 10:11

Depends on which part leaks. Generally, you remove the driver side grille with side PA sensor and fog light. You can access the reservoir. You can access the other side by removing the wheel and it’s fender