Comfort control unit VW PASSAT CC 2009

OEM: 3C0959433AR

Disassembled car photo

Engine running

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  • Fast delivery 3–7 days
  • 14-day returns

What is this part and why does it matter?

The comfort control module manages various convenience functions such as central locking, windows, mirrors, and interior lighting, acting as a central coordinator for these body electronics.

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Signs of a faulty part

If you notice any of the following, the part likely needs replacement:

  • Multiple convenience functions not working (locking, windows, lighting)
  • Functions working intermittently or inconsistently
  • Diagnostic fault code related to the module itself

Installation information

Mounted centrally, connecting to numerous body electrical circuits via the vehicle wiring harness — requires specialist coding after replacement.

Frequently asked questions

This module coordinates a wide range of body convenience features that don’t need engine-level processing power but benefit from centralised control — a fault here can therefore affect many seemingly unrelated functions at once.

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