Hi folks. I took a close look at my front left wheel tonight and I badly need some advice on a few issues. *This* problem is the brake was intermittently seizing. After the seize today, the brake did not completely release after cooling as it previously had done. On disassembling, I had a tough time (harder then rears) retracting the piston. The pins look pretty clean, as do the rotor and the pads. The rotor has 26mm thickness, and the pads appear to be almost like-new thickness. The rubber seal around the piston is not seated for about 1/5 of the circumference of the piston. In other words the lip of the seal that should seat inside the housing is not. I can actually see the side of the piston in this area, and I can see a little surface rust on it (sigh).

My feeling is that the cause is the improperly seated seal allowed moisture to get in, causing enough rust to seize it. Anyone agree or have another theory? I have browsed a few volvo boards, and one person said replacing his pads and rotors solved an intermittent seize. Those parts do not *appear* to be in very bad shape on my car, although the rotor is not perfectly smooth (very slight ridging from inside to outside radius). The rotor does not appear to have any unique areas around the circumference such as deposits or discoloration.

Thank you very much for any help you can provide. Don 151k 850T