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carmad carmad is offline
Cymru am Byth
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Join Date: Apr 2002
Location: Salem, Oregon.
Posts: 567
As per factory manual.

1. Loosen and remove control line to WG.
2. Run engine at idle speed. There must be noticable vacuum in control line. With increasing engine speed, vacuum changes to pressure (charging pressure).
3. Insert a plug in disconnected control line, so that engine will not stall while checking WG operation.
4. Carefully blow compressed air into control line opening of WG. Listen for sound of WG opening.

Do not use more than 1.5 bar (21 psi) air pressure.

Check bypass line warms up (cold engine).
1986 930 (Gone but not forgotten)
1995 993 (Should Never Have Sold it)
2007 BMW 328Xi Sport Wagon
2005 Lexus GX470 Offroader
Julian Williams
Old 04-08-2008, 06:27 PM
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