Bypass Valve in Oil Circuit, Replace
Remove, Disconnect
Remove oil filter cartridge with commercially available tool.
Using tap M10 (3rd stage) cut thread in closure washer, screw in M10 bolt and remove bypass valve from seat.
Install, Connect
Drive in bypass valve to stop with brass drift ( Ø 15 mm) (see illus.).
Lightly lubricate seal ring of oil filter cartridge and tighten by hand.
Inspect
Check engine oil level and correct if necessary.