audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

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Keyless Entry: Technical Service Bulletins
Infrared Locking System

Infrared Locking System

Condition

The following condition(s) may exist:

^ Clicking noise (from power window control unit)

^ Battery completely drained

Cause:

Internal malfunction in the bi-pressure pump, P/N ending in the suffix "B".

Repair:

Replace the pump with the latest version pump, 4A0 862 257G (Note: The interior lights and the door unlock feature with the key will work differently
from the original pump. (See Locking Pump Operational Differences.) Should the relay continue to click, it may have been damaged by the previous
pump. Replace the relay.

General Information|Page 4842 > < General Information