Audi A6 C6 Rear Air Suspension Bag Leak
Audi
A6
2004
All
⚡ Quick Summary
Severity Level
Medium
Safe to Drive?
✅ Safe to Drive
Safety Impact
No direct safety impact reported by owners
Urgency Level
🟡 Monitor Closely
The rear air springs on C6 A6 Allroad deflate progressively from bag or air line leaks. The rear sits low with a self-levelling warning. Replacement air bags cost £150-350 each. An Audi VCDS diagnostic confirms which corner is leaking before replacement.
Repair / Solution
No confirmed fixes yet. Share yours below.
⚠️ Wrong Diagnosis?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this Audi A6 2004 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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