Compression, checking

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 1999 Volkswagen Jetta, 1999 Volkswagen GTI, 1998 Volkswagen Jetta, 1998 Volkswagen GTI, and 1997 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

Engine oil temperature min. 30°C (86°F)

Disconnect 5-pin connector from Ignition Coil - N152-.
Fully open throttle valve.
Check compression in each cylinder using VAG 1381/VAG 1763 compression tester.

NOTE: Using the compression tester.

Operate Starter until compression tester shows no further pressure increase.

Compression pressure specifications:

New: 10-13 bar (145-189 psi)
Wear limit: 7.5 bar (109 psi)
Max. permissible difference between all cylinders: 3 bar (44 psi)