Audi Q7 2007–2009 — technical service bulletin
Bulletin 01139320192082 · NHTSA communication 10222021 · issued May 8, 2013
Technical service bulletin
communication type
Engine and Engine Cooling
component
2007–2009
model years
3
vehicle entries
Official summary
If, during winter months, the vehicle is used mainly for short trips, it is possible for an excessive amount of condensed water to collect in the rear muffler. When the condensed water level in the muffler reaches a certain point, it is possible for this water to run into the exhaust pipe and freeze overnight, preventing the engine from starting.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.