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When performing cylinder leakage tests, the following tips might be helpful:
Remove all spark plugs to allow easier rotation of the engine. (If this test is
done after a compression test, the
plugs should already be out).
Perform the leakage test on all cylinders, not just the problem
cylinder.
The gas generator is a pyrotechnic component of:
Airbag module
Driver's/passenger airbag
Side airbags
Head airbag
Knee airbag
Belt pretensioner
Belt buckle tensioner
Safety battery terminal
1 Series: E81, E87
3 Series: E46, E90, E91, E92, E93
5 Series: E60, E61 from build date 09/2