WenmarOpen by Wenmar Pro

Service bulletins for the 2014 Audi Q5

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.

1389 on file from NHTSA, as of 2026-10-19.

About P203B on the 2014 Audi Q5: what the code means, and the bulletins and recalls about the same components.

By type

By component

By trouble code

By topic

Only bulletins with trouble code: P203B are shown. Show all

Bulletins, newest first
A011913 203536882019-04-02. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains repair instructions for when a MIL is on with DTC P203B00.
A011875 2035368-2018-09-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains repair instructions for when a MIL is on with DTC P203B00.
A011404 2035368-2017-12-05. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 01 number 14-84 dated July 28, 2014. MIL on. DTC P203B00 (Reductant Level Sensor Circuit Range/Performance) is stored in the engine control module (ECM), J623 (address word 01). Due to a production issue for the level sensor, the ECM cannot correctly read the reductant (AdBlue) fluid level.
A011484 2035368-2017-11-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Supersedes Technical Service Bulletin Group 01 number 14-81 dated June 24, 2014. The MIL is on. DTC P203B00 (Reductant Level Sensor Circuit Range/Performance) is stored in the engine control module (ECM). Due to a production issue for the level sensor, the ECM cannot correctly read the reductant (AdBlue) fluid level.
A011481 2035368-2017-11-08. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 01 number 13-32 dated September 26, 2013. The MIL is on. DTC P203B00 (Reductant Level Sensor Circuit Range/Performance) is stored in the engine control module (ECM), J623 (address word 01).Due to a production issue for the level sensor, the ECM cannot correctly read the reductant (AdBlue) fluid level.
A011332 2035368-2017-10-31. Service bulletin. ELECTRICAL SYSTEM; ENGINE. MIL on. DTC P203B00 (Reductant Level Sensor Circuit Range/Performance) is stored in the engine control module (ECM), J623 (address word 01). Due to a production issue for the level sensor, the ECM cannot correctly read the Reductant (AdBlue) fluid level.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.