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Service bulletins for the 2013 Audi A4 allroad

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.

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

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Only bulletins with component: Exhaust and emissions are shown. Show all

Bulletins, newest first
A2019162035073142019-06-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE. This bulletin contains repair instructions for when the MIL is on and the DTC P045600 is stored in the ECM. This document also applies to the 2015 A3 Cabriolet and the 2015 A4 Cabriolet.
A261319 2027945-2017-12-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Supersedes Technical Service Bulletin Group 26 number 13-18 dated May 22, 2013. Humming or metallic rattling noise from under the vehicle, heard most consistently during engine idle or slow acceleration. Initial inspection indicates that the noise is coming from the exhaust system. Relative movements in the rear mounting of the exhaust system (rear silencer).
Campaign Circula2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). On certain Audi vehicles with 2.0L TFSI engine, the diaphragm of the crankcase pressure regulating valve may have been damaged. Inspect and, if necessary, install a repair kit for the crankcase pressure regulating valve.
Campaign Circula2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). On certain Audi vehicles with 2.0L TFSI engine, the diaphragm of the crankcase pressure regulating valve may have been damaged. Inspect and, if necessary, install a repair kit for the crankcase pressure regulating valve.
24CO2017-03-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ELECTRICAL SYSTEM:SOFTWARE. ON CERTAIN AUDI VEHICLES WITH A 3.0L TFSI ENGINE MANUFACTURED DURING A SPECIFIC PERIOD, THE DIAGNOSTIC THRESHOLDS FOR THE CATALYTIC CONVERTERS WERE PROGRAMMED TOO TIGHTLY IN THE ENGINE CONTROL UNIT. AS A RESULT, THE MALFUNCTION INDICATOR LIGHT (MIL) MAY COME ON EVEN THOUGH THE CATALYTIC CONVERTERS ARE WORKING PROPERLY. IF THE MIL IS ON, A VEHICLE WILL NOT PASS AN EMISSIONS INSPECTION.
A241654204400322017-03-14. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO DIAGNOSE AND REPAIR ISSUES WITH THE INTAKE MANIFOLD FLAP VALVE N316.
A241653204400312017-03-03. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); EQUIPMENT. THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO DIAGNOSE AND REPAIR ISSUES WITH THE INTAKE MANIFOLD FLAP VALVE N316.
A241654204400322017-02-23. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO DIAGNOSE AND REPAIR ISSUES WITH THE INTAKE MANIFOLD FLAP VALVE N316.

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