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beepbeep beepbeep is offline
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Join Date: Jun 2001
Location: Sweden
Posts: 5,917
Hehehehe...

A6 has ECU-controlled wastegates (internal) and vacuum-controlled "diverter valves", "dumps", "hooter valves", "bypass valves" or whatever people call them.

Wastegates have nothing to do with "diverter valves" and both are installed on turbocharged engines. They have completly different functions. somehow people always mix them up.

There is no "wastegate dumping pressure" during startup. Wastegate opens only under full boost and bypasses turbo, but exhausts go intor same exhaust system. With other words, it won't dump anything into outside surrounding air, not on A6 anyway.

I believe you maybe had some sort of fuel-leak that catched fire or something like that.

I strongly suggest you to takeyour car to the dealer to troubleshoot it. A6 2.7T shouldn't make strange "dumping wastegate" noises or burn underneath. It might be something potentially serious, like ruptured fuel-line etc.
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Old 05-13-2004, 06:45 AM
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