Audi A6 White Smoke — 3.0 TDI EGR Cooler Failure
Audi
A6
2004
3.0 TDI V6 BKN
⚡ Quick Summary
Severity Level
High
Safe to Drive?
🚫 Do NOT Drive
Safety Impact
Direct safety risk — affects safe operation of the vehicle
Urgency Level
🟠 Fix Soon
White smoke from Audi A6 3.0 TDI combined with coolant loss indicates a cracked EGR cooler allowing coolant into the intake manifold. EGR cooler replacement costs £400-900.
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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