Supersedes Technical Service Bulletin Group 80 number 13-05 dated September 11, 2013
Audi technical service bulletin A801406 2033806- for 2012-2013 Audi A6, 2012-2014 Audi Q5 and 2011-2014 Audi Q7 and others.
- Bulletin number
- A801406 2033806-
- Component
- Engine and engine cooling: cooling system
- Summary
- Supersedes Technical Service Bulletin Group 80 number 13-05 dated September 11, 2013. Malfunction Indicator Lamp is on. Climate system heating performance is insufficient. Coolant level warning is on. Engine temperature is elevated. "Limp Home" mode is active. Faults are stored in the transmission control module (address word 02). Coolant loss is found from one or more control valves: N82, N509, or N488. Coolant may have migrated into the wiring harness through the connector and into various control units. Climate system heating performance is insufficient due to coolant loss, or due to a faulty N82 control valve. Inspection of the coolant control valves N82, N509, or N488 reveals the presence of coolant inside the electrical connector as shown in the illustration. The connectors, wiring harness, and/or connected control units may have been damaged from exposure to coolant.
Owners of these vehicles have filed 316 complaints in the engine category.
Vehicles covered
- Audi A6 2012-2013 20122013
- Audi Q5 2012-2014 201220132014
- Audi Q7 2011-2014 2011201220132014
- Audi A5 2012-2013 20122013
- Audi A8 2010-2013 2010201120122013
- Audi A4 Allroad 2013-2014 20132014
- Audi A7 2012-2013 20122013
- Audi A4 Avant 2012 2012
- Audi A5 Cabriolet 2012-2014 201220132014
- Audi TT Roadster 2012-2014 201220132014
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