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Service bulletin A851420 2033596-

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10125560
Published by NHTSA2017-12-14
Manufacturer's numberA851420 2033596-
Manufacturer's date2014-02-24
NHTSA componentELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING

NHTSA's summary

Supersedes Technical Service Bulletin Group 85 number 13-17 dated May 15, 2013. DTCs may be stored in the heating and air conditioning electronics control module (address word 08). Improper operation of the fresh air blower could be caused by a faulty printed circuit board in the fresh air blower control module and/or the carbon brushes bind in the brush holder and, as a consequence, lose contact with the motor commutator of the fresh air blower.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Engine

Vehicles listed
AUDI A42009, 2010
AUDI A4 ALLROAD2013, 2014
AUDI A4 AVANT2011 to 2012
AUDI A52008, 2009, 2010, 2011, 2012, 2013, 2014
AUDI A5 CABRIOLET2010 to 2014
AUDI Q52009, 2010, 2011, 2012, 2013, 2014

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20181742018-04-11. Electrical
18V2290002018-04-11. ENGINE AND ENGINE COOLING:COOLING SYSTEM
20174832017-10-06. Electrical
17V6220002017-10-05. ELECTRICAL SYSTEM:WIRING
20170022017-01-04. Engine
17V0020002017-01-03. ENGINE AND ENGINE COOLING:COOLING SYSTEM

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SM 01-20262026-08-05. Other. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
TSB_2082323_12026-07-07. Service bulletin. This bulletin provides informaiton when the engine is not running smoothly, misfiring.
TSB_2059335_72026-07-07. Service bulletin. This bulletin provides information when there are noises from the area around the instrument cluster.
TSB_2074729_32026-07-07. Service bulletin. This bulletin provides informationwhen noises/vibration are detected from front of vehicle in dynamic mode.
TSB_2081405_12026-04-07. Service bulletin. This bulletin provides informaiotn about various infortainment system complaints.
TSB_2024323_132026-04-07. Service bulletin. This bulletin provides information when the parking assistance gives false warnings.
TSB_2024323_122026-04-07. Service bulletin. This bulletin provides information when the parking assistance gives false warnings.
TSB_2059335_62026-03-03. Service bulletin. This TSB provides information when there are noises from the area around the instrument cluster.
TSB_2021205_102026-03-03. Service bulletin. This bulletin provides information on VIN Plates, Safety Certification labels, and the ordering procedures.
TSB_2080681_12026-02-06. Service bulletin. This bulletin provides information regarding contact checks for event memories, intermittent.