My windshield sprayer clogged and I had fits trying to repair it, so I thought I would share.
This isn't nearly as simple as it would appear and I wanted you all to benefit from my repair experience!

Time: Allow an hour

Note: Good post for older 200/700 series here.

First, try to do the simple thing - push a stick pin or sewing needly through the hole. Nothing to damage in there, just try to clear it. If both sprayers are not working right, the blockage may be at the "Y" connector. Also, the hose could be pinched, if someone has tried working on them previously. After you remove the old spray head, you will be pulling the entire hose out of the hood for inspection and testing. It's easy to replace the "Y" connector, split or leaking hoses, or the check valves, while the tubbing is out of the hood!

REPLACE the sprayers (you might was well pull out both of them).

The spray nozzles (pictured below) are not complicated, but they can be very hard to work on, particularly if you have large hands and fingers, like I do.

Hint: Wear heavy gloves!

Tools: Piers, scissors

Parts: Spray Heads (2), Y-connector (1), check valves (2). Part Numbers below.
Double stick tape (1")

1) Open the hood. Pop out the two oval plastic cover plates under each sprayer. Use your fingernails or a plastic scraper. Screwdriver, if you have to, but don't scratch the paint.

2) Grab the spray head on top with one gloved hand and work it back and forth, pressing up from under the hood with your other hand. You may have to work it back and forth several times, until the tape seal breaks free. The built-in snaps are released when you turn the part a quarter turn (90 degrees left or right). Then pull it up out of the oval hole, stretching the rubber hose as you do.

Hint: The sprayer may be stuck to the paint with a thin layer of double stick tape. Nobody tells you this! Don't try to remove the old tape - leave it there. Replacement tape is not included in the parts kits, so use some thin double stick tape you can get any grocery store or office supply store.

3) You can safely pull the rubber hose out as much as 2-3 inches. Then just cut off the tubbing and let it slip back inside the hood. The replacement sprayer heads come with a short section of replacement tubbing !

4) After snipping off both sprayer heads, pull the entire length of tubbing out of the hood from the passenger side of the car. It is much easier to work on and to test the system that way.

5) Now you can test the system without the spray heads. Notice that there is a "Y" connector and then each end of the tubbing may have a one-way check valve. The valve has a triangle arrow under it, showing the direction of the fluid.

TEST the system

1) Lay the tubing on the windshield. Close the hood. Raise both windshield wiper blades to get them out of the way.

Optional, put each end of the hose in a water bottle to recover the fluid as it gets pumped out.

2) Get in the car and turn the ignition switch to the first position. Pull the wiper handle back towards the driver.
The wipers should start moving and the fluid should be pumping into the bottles.

If not, then you may have a bad check valve. Replace the valve with a generic one (I don't have a Volvo part number for one). Else, try to clean it out at the sink, using water pumped through a Turkey Marinade Injector Syringe (it's a $10 kit found in grocery stores). it's just a big syringe with a large needle. You can push the rubber tubbing up over the needle mount. Suck up water from a glass or bowl of water and inject it through the rubber hoses. The check valves will make a groaning sound if they work. If not, they may be blocked and you can replace them with a new one or use a straight tube extension pipe (plastic or copper 1/8 tubbing).

The check valves keep fluid in the system, so it doesn't spray air until the fluid works its way up, but it will work with out them.

If the fluid is pumping correctly, then re-route the tubbing back into the hood channels and pull it up through each hole. I found that the rubber tubbing will snag on the hole and stay in place if you pull about 1-2 inches out and gently let go.

REPLACE SPAYER HEADS

1) Attached some thin double stick tape to the bottom of each sprayer head. It works fine without, but it's better to have th heads more secure this way.

2) Push on the rubber tubbing on top of the hood and work the sprayer heads back into the hole. You will need to turn them a quarter turn (90 degrees) to get into the oval shaped hole, then just snap them in place.

3) Close the hood. Test the sprayer for proper function: engaging the ignition key to the first position and pull the wiper control arm back to turn on the sprayer. Both sprayers should produce an even mist of fluid.


CAREFULL: You are going to get wet and you will probably get your engine wet doing this. Also, clear the windshield, because the wipers are going to be activated with the sprayers.

The headlight sprayer go off the first time, too! So, I recommend laying a heavy cloth over the headlight sprayers.

Here is list of the three plastic parts I replaced (from IPDUSA.com):

1 x 120909 - Rear Wiper Washer Squirter Nozzle - P2 V70 XC70 2003-2007
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1 x 124402 - Windshield Washer Y Connector - P2 V70 XC70 S60
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2 x 114872 - Windshield Washer Squiter Jet Nozzle

I don't have a part number for the check valves. You may have to buy generic valves at a local auto parts store. You want one with two connectors, not three.

Note: Newer Volvo's are using a single valve with a 3-way connection, instead of the "Y" connector and two check valves. If you choose to use the newer part, you may need longer rubber tubbing.

A sprayhead is show below, next to a quarter for size comparison. The Volvo replacement sprayers have a short piece of black hose attached. That allows you to cut off the old spray head hose, rather than struggle with pulling off that short piece of tubbing. The short piece goes to the check valve, which is only 4 inches away.