PTP - Preparation For Test [32]

Air Conditioning (A/C)

Models 140 up to MY 1995

Pneumatic Test Program (PTP) - Preparation for Test

Preliminary work:
- Test automatic A/C vacuum system for leaks
- Disconnect and plug connection 5 (Y11 - switchover valve block) from the vacuum distribution block (36).
- Connect vacuum/pressure tester to the disconnected pneumatic line.
- Refer to the respective vacuum diagram in 33 depending upon the indicated code in the left display window (from 13 ).
- Permissible leakage of the actuators with pneumatic lines at 400 mbar vacuum per minute is 30 mbar.

Special Tools: