{"nhtsa_id":10124643,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-12-05","date":"2013-08-09","document_id":"A801304 2033806-","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM:WIRING","mfr_system":null,"summary":"Supersedes Technical Service Bulletin Group 80 number 13-03 dated May 13, 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. 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. The connectors, wiring harness, and/or connected control units may have been damaged from exposure to coolant.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10124643-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10124643-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10124643","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null},{"id":"wiring","name":"Wiring and fuses","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"AUDI","model":"A4 ALLROAD","year_from":2013,"year_to":2013,"match":"exact","vehicle_ids":["2013_audi_a4-allroad"]},{"make":"AUDI","model":"A4 AVANT","year_from":2012,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"AUDI","model":"A5","year_from":2012,"year_to":2013,"match":"exact","vehicle_ids":["2012_audi_a5","2013_audi_a5"]},{"make":"AUDI","model":"A5 CABRIOLET","year_from":2012,"year_to":2013,"match":null,"vehicle_ids":[]},{"make":"AUDI","model":"A6","year_from":2012,"year_to":2013,"match":"exact","vehicle_ids":["2012_audi_a6","2013_audi_a6"]},{"make":"AUDI","model":"A7","year_from":2012,"year_to":2013,"match":"exact","vehicle_ids":["2012_audi_a7","2013_audi_a7"]},{"make":"AUDI","model":"A8","year_from":2010,"year_to":2013,"match":"exact","vehicle_ids":["2010_audi_a8","2011_audi_a8","2012_audi_a8","2013_audi_a8"]},{"make":"AUDI","model":"Q5","year_from":2012,"year_to":2013,"match":"exact","vehicle_ids":["2012_audi_q5","2013_audi_q5"]},{"make":"AUDI","model":"Q7","year_from":2011,"year_to":2013,"match":"exact","vehicle_ids":["2011_audi_q7","2012_audi_q7","2013_audi_q7"]},{"make":"AUDI","model":"TT ROADSTER","year_from":2012,"year_to":2013,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}