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Service bulletins for the 2013 Audi A4

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
44133720302752024-02-20. Service bulletin. SUSPENSION. Model Year 2013 Alignment - Repair Authorization
44133620225632024-02-20. Service bulletin. STEERING. Steering wheel shimmy, vibration and/or oscillation
37139520305822024-02-20. Service bulletin. LANE DEPARTURE; AIR BAGS. Gearbox warning light briefly comes on. Fault code P0606 stored in TCM
37139120329412024-02-20. Service bulletin. POWER TRAIN. Transmission warning message displayed in cluster.
37138920305822024-02-20. Service bulletin. POWER TRAIN. Gearbox warning light briefly comes on. Fault code P0606 stored in TCM.
37138820320942024-02-20. Service bulletin. POWER TRAIN. Transmission warning message in cluster (DTC P0603 in TCM)
37138720293052024-02-20. Service bulletin. POWER TRAIN. Harsh downshifts when braking or harsh 1-2 upshift under acceleration
37138620289852024-02-20. Service bulletin. POWER TRAIN. Transmission warning message in cluster, P074100 stored in TCM
37138520289852024-02-20. Service bulletin. POWER TRAIN. Transmission warning message in cluster, P074100 stored in TCM
37127620293052024-02-20. Service bulletin. POWER TRAIN. Harsh downshifts when braking or harsh 1-2 upshift under acceleration
37126520300072024-02-20. Service bulletin. POWER TRAIN. Customer may report harsh shift concerns. No faults stored and concern is reproducible.
37126420306482024-02-20. Service bulletin. ENGINE AND ENGINE COOLING. Engine speed increases when driving downhill, vehicle speed is not increased - CVT transmission
17123220185502024-02-20. Service bulletin. ENGINE AND ENGINE COOLING. Oil consumption measurement - Repair Authorization (CA)
02120220320942024-02-20. Service bulletin. POWER TRAIN. Transmission warning message in cluster.
02120020314442024-02-20. Service bulletin. POWER TRAIN. Transmission warning message in cluster, Fault P172400 stored in TCM
01125620313682024-02-20. Service bulletin. FUEL SYSTEM, GASOLINE. Unnecessary High Pressure Fuel Pumps replacement due to Guided Fault Finding test plans not being performed or interrupted when the following DTC? s are present in the engine control module:
PDIh2024-02-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Lineamientos de entrega de Audi
GuidelinesA2024-02-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. AUDI delivery guidelines
PDIa2024-02-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Lineamientos de entrega de Audi
Edition802024-02-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Elsa newsletter
Update28G62024-02-12. Service bulletin. ELECTRICAL SYSTEM:IGNITION. Ignition Coils
17E92024-02-12. Service bulletin. EQUIPMENT. Correction to Owner?s Manual Engine Compartment Overview
Edition812024-02-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Elsa newsletter
DC_Closure 19N82024-02-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP. SERV_ACT - After-Run Coolant Pump - Closure Notice
48K8UPDATE2024-01-22. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM; STEERING. Power Steering Control Unit Software (NVLW)

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