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It's an easy job, but there are a few caveats.
Pull the glove box. Easy. When replacing it, do NOT overtighten the screws.
It can be removed without emptying out all the whatever you keep in there, nice!
The nut which holds the motor arm onto the linkage is - I think - 10mm. There is a washer there, too. Don't loose it. The arm is a real snug fit on the motor shaft. Use a little flattip screwdriver to pry a little, first one side then the other, just enough to get it started. Then use fingertips.
The motor is easy to remove. Three 10mm nuts, unplug the wiring harness, and PULL while twisting a little. FIRST - vacuum off all the leaves, pine needles, dead bugs, whatever, that is around the motor.
There is a goodly amount of black gooey stickey caulk around the motor shaft housing where it fits in through the hold in the firewall. PULL HARD.
If you don't see the little brass ground strip, look for it in the black stuff.
The motor shaft housing goes through the air chamber, where air goes from the windshield grille down to the rocker panels. I found that by using a looog pair of tweezers (10 inchers) I pulled out of that channel some 1/2 coffee can full of leaves and stuff. Then I used a vacuum on it. Yukk, what stuff.
Use more caulk on the motor when installing. Volvo uses 3M Strip Caulk. I found it at NAPA auto parts, about $12 for what looks like a 10-year supply.
You can test the "new" motor before installing it. Hook up the wiring harness and turn on the wipers. Get a wire or something to connect the motor frame to the car body. It oughta turn.
Well, that's enough. Post if you need more,
Good Luck
Bob
:>)
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