Test LDP -V144- for internal leaks

WARNING: This page is about a different car, the 1999 Audi A8, 1998 Audi A8, and 1997 Audi A8. However, it is still accessible from the selected car via links, so may be relevant.

If vehicle is not LDP-equipped, proceed to "Test EVAP system".

Clamp off LDP outlet (EVAP side) using Special Tool No. 3094 or equivalent.

CAUTION: Clamp only soft rubber lines when isolating a leak. To avoid risk of damage, never clamp hard plastic lines!

Repeat Leak Test using VAS 5051 and Basic Setting mode.
VAS 5051 should immediately indicate "System OK"
Repeat test several times to verify result.
If test continues to indicate "System OK", remove clamp and proceed to "Test EVAP System".

If VAS 5051 indicates "System not OK":

Replace LDP and repeat test.

If VAS 5051 indicates "System OK" after LDP is replaced and test result is verified:

Perform quality check and return vehicle to customer.