volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Tail light (tail light cluster) with LEDs in side panel > < Tail light cluster with LED
General description
General description
The tail lights cannot be dismantled (except for the left and right turn signals and the right reversing light). The turn signal light and the right reversing light have bulbs which must be replaced individually. The other lighting is produced by light-emitting diodes. Defective light-emitting diodes cannot be replaced.
  Note
t  LED failure in LED tail lights (not USA and Canada)
t  The individual LEDs (light-emitting diodes) in the LED tail lights (tail light cluster, brake lights, turn signals and reversing lights) are comprised in groups of four LEDs and are supplied with current in groups.
t  The LED tail lights (tail light clusters) are designed in such a way that the legal requirements of the ECE regulations (Economic Commission for Europe) are still met in the event that one LED group per function (e.g. brake light) fails.
t  If a further LED group per function fails, these requirements are no longer met according to the legislator.
t  Due to the failure of one LED group, this function's intact LEDs are placed under increased strain; it must be anticipated that further LED groups will soon fail.
t  If more than 4 individual LEDs in one function of the tail light have failed, the entire tail light must be renewed.
Fault detection and fault display:
The onboard supply control unit has a self-diagnostic function, which makes fault finding on tail light easier.
For fault finding, use vehicle diagnostic, testing and information system -VAS 5051A- in „Guided fault finding“ mode.
   

Tail light (tail light cluster) with LEDs in side panel > < Tail light cluster with LED