Replacing the Comfort Control Module on a 2005 Audi S4 Cabriolet
If your 2005 Audi S4 Cabriolet is acting up with interior lights, power windows, door locks, or even convertible roof issues, your Comfort Control Module (CCM) may be to blame. In this post and video, we cover the full replacement process using part 8H0 959 433 L.
🔧 What Is the Comfort Control Module?
The CCM is the brain behind your Audi’s convenience functions—controlling everything from your door locks and interior lights to your power windows and convertible top. When it fails, it can cause a range of frustrating issues.
⚠️ Common Symptoms of a Bad CCM:
- Doors not locking or unlocking properly
- Convertible roof not responding
- Interior lights staying on or not working
- Power windows malfunctioning
- Random alarm triggers
✅ Replacement Process Overview:
- Disconnect the battery for safety
- Remove driver’s side trim and locate the module under the footwell
- Unplug connectors and remove the old unit
- Install the new Comfort Control Module (8H0-959-433-L)
- Reconnect everything and test door locks, windows, and roof operation
📹 Video Guide:
Replacing the CCM is a straightforward DIY if you’re comfortable working with trim and electronics. It can save you from hundreds in dealership diagnostics and labor.
💬 Have you experienced similar issues with your Audi Cabriolet? Share your story or drop questions in the comments!
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