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My SAS valve was causing my Check Engine light to come on, but I didn't bother with replacing it. Of course, that wasn't such a good idea, and now the air pump is possibly dead. It was already noisy, but now it's silent, so I don't really know what that means.
I bought a used VW air pump with numbers matching the one in the article. Hopefully it will be a smooth process. I'm worried about replacing the valve right now, since I've read that on turbo S70's, one of the bolts is very hard to reach. Replacing and testing the air pump w/o doing the SAS valve at the same time seems like it'll lead to another dead air pump.
I'll try to take pictures in the coming weeks when I attempt the job.
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