Buy 2000 Audi A4 1.8L A/T Quattro Lock. Latch. Motor. A4; Right. S4, RS4; Right. Door Lock Actuator - OEM Audi Part # 8D0839016A (8D0-839-016-A)

From Chassis/VIN 4A-V-080 001. From Chassis/VIN 4A-V-120 001. Mechanism to secure door to Chassis. Motor to Lock and unLock car door. To Chassis/VIN 4A-W-005 000. To Chassis/VIN 8D-2-010 000. Vacuum Operated System. AND Amplifier; switch. Door Actuator.

Door Latch AssemblyDoor Lock Actuator Motor

Fits A4, A6, S4

A4; Right. S4, RS4; Right.
Door Lock Actuator - Repair or Replace
Your 2000 Audi A4 may need a new door lock actuator if your keyless entry doesn't work or your lock button doesn't lock the doors.