Audi B8 8K 8T 8R Front Right Door Lock Actuator Mechanism - Used Original Parts

Audi B8 8K 8T 8R Front Right Door Lock Actuator Mechanism - Used Original Parts

Diagnosis and Common Symptoms

When diagnosing central locking anomalies on the Audi B8 chassis (spanning the 8K, 8T, and 8R platforms), the front right door lock actuator is a frequent point of failure. The root cause is typically the degradation of the internal microswitches or the failure of the small internal DC motor that drives the locking gears. When connecting VCDS or your diagnostic scanner, you will commonly pull fault codes such as 02115 (Locking Unit for Central Locking - Implausible Signal) or 00929 (Locking Module for Central Locking; Front Passenger Side - F221). From a driver's perspective, the symptoms are highly recognizable: the front right door will intermittently refuse to lock or unlock via the remote key fob, forcing the driver to use the interior handle twice to mechanically override the latch. You may also notice the interior dome lights failing to turn on when the passenger door is opened, or the vehicle's security system failing to register the door as closed, which can trigger false alarms.

Introduction

As a senior technician, I strongly advise against installing aftermarket electronic latches on complex German comfort modules. This Genuine Used front right door lock actuator has been bench-tested to ensure both the mechanical latching gears and the internal electrical microswitches perform to factory specifications. Sourcing a fully tested, authentic part ensures the vehicle's central convenience system integrates seamlessly without the recurring communication faults typical of replica parts.

Product Details

• Brand: Audi
• Model Compatibility: Audi B8 Chassis (A4 8K, A5 8T, Q5 8R)
• Part Name: Front Right Door Lock Actuator Mechanism
• Condition: Genuine Used (Tested Working)
• Notes: Please confirm your vehicle's PR-codes prior to installation, as pin configurations vary depending on whether the vehicle is equipped with Advanced Key (KESSY) or Safe-lock features. We recommend applying specialized lithium grease to the Bowden cable receiver during installation to ensure smooth handle operation.