Volkswagen Passat B7 Auto-Dimming Rearview Mirror - Used Original Parts

Diagnosis and Common Symptoms

From a workshop perspective, the G397 automatic anti-dazzle interior mirror on the Passat B7 platform is a common point of failure. The primary symptom is a complete loss of the auto-dimming function, resulting in significant glare from following vehicles during night driving. A visual inspection often reveals a "bubble" or a two-toned, lava lamp-like effect in the mirror glass; this indicates the electrochromic fluid has leaked internally and failed.

During a diagnostic scan with VCDS or a similar tool, faults may be logged in the Central Electronics module (09-Cent. Elect.). Look for codes such as "02390 - Sensor for Automatic Anti-Dazzle Interior Mirror (G397) - Open Circuit / Short to Plus" or "00908 - Control Module for Wiper Motor - No Signal/Communication", as the mirror often shares a LIN bus with the rain/light sensor. Functionally, the mirror will either remain permanently bright or, in some cases, get stuck in a dark, dimmed state.

Introduction

Restore the safety and comfort of your night driving with a fully functional replacement part. This is a Genuine Volkswagen auto-dimming rearview mirror, carefully salvaged from a Passat B7. Each unit undergoes rigorous bench testing by our technicians to confirm the electrochromic dimming mechanism and light sensors are operating precisely to factory specifications. It provides an intelligent, cost-effective solution without compromising on the original fit and performance.

Product Details

• Brand: Volkswagen

• Model Compatibility: Volkswagen Passat (B7, 2011-2015)

• Part Name: Auto-Dimming Interior Rearview Mirror

• Condition: Genuine Used (Tested Working)

• Notes: Inspected for electrochromic fluid integrity and discoloration. Both forward and rear-facing light sensors have been verified for correct operation. Connectors are clean and free of corrosion.