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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: Electrical system are shown. Show all

Bulletins, newest first
A2019182043357112019-07-09. Service bulletin. ELECTRICAL SYSTEM. This technical service bulletin provides a software code for correcting an issue that causes DTC P046100.
A201911 20433572019-04-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This technical service bulletin provides a software code for correcting an issue that causes DTC P046100.
A001915 20478122019-04-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin contains instructions for setting up and using the SD creator program.
A201911 20433572019-04-01. Service bulletin. ELECTRICAL SYSTEM. This technical service bulletin provides a software code for correcting an issue that causes DTC P046100.
A011999 20338062019-04-01. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin provides repair instructions when coolant control valves have coolant inside of their electrical connector.
A961934 204892722019-04-01. Service bulletin. ELECTRICAL SYSTEM:WIRING: REAR COMPARTMENT/TRUNK; STRUCTURE:BODY:TRUNK LID. This informational bulletin contains instructions for minimizing the risk of an unintentional opening of the trunk lid with the remote.
A571954 202203282019-04-01. Service bulletin. ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES. This technical service bulletin provides troubleshooting information for the vehicle locking system.
A911821 20515272019-02-25. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin contains instructions for when the Sirius presets are missing with no DTCs.
A911895 2026657-2018-09-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This bulletin contains instructions for removing the HD radio feature if requested by the customer.
A971860 2036764_2018-04-16. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains repair instructions for when the vehicle will not start and DTC P068A00 is stored.
A961721 2048927-2018-04-16. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; LATCHES/LOCKS/LINKAGES:TRUNK LID:LOCK. This informational bulletin contains instructions for minimizing the risk of an unintentional opening of the trunk lid with the remote.
A241450 2038212-2018-04-16. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. The engine judders or runs erratically. The vehicle judders during acceleration. No event entry is stored in the engine control module (ECM). The air mass meter is suspected to be faulty. Possible incorrect function on the sensor elements of the air mass meter.
A911506 2039476-2018-04-02. Service bulletin. ELECTRICAL SYSTEM. The customer complains that the Audi connect online service in their 2011-2013 A8, 2012-2013 Q7, or 2013 A4, A5, A5 cabriolet, or Q5 vehicle only reaches 2G service when in metropolitan areas. This bulletin applies only to model year 2011-2013 A8, 2012-2013 Q7, and 2013 A4, A5, A5 cabriolet, and 2013 Q5 vehicles. For 2012-2013 A6 and A7 vehicles see TSB 2039515. The model year 2014 A8 is not included in this repair. Model year 2014 was the last year before the A8 product improvement and ElsaPro may classify these vehicles as model year 2013 because these vehicles are the same from a technical and design standpoint. But unlike the model year 2013 vehicles, the model year 14 vehicles already have the updated telephone module in the MMI. Recently, T-Mobile (the service provider for Audi connect) has repurposed some of the GSM spectrum (3G on 2100Mhz band) to maximize 4G LTE coverage in certain metropolitan areas. Devices that do not support 3G service on the 1900MHZ band (including MMI main units of the vehicles to which this bulletin applies) will only receive 2G service when the switch is completed. The change currently only affects the markets listed above, but will affect other markets in coming years. This bulletin will be updated to include these markets as changes occur.
A911690 2036575-2018-03-13. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides an explanation for the customer regarding known software issues with the MIB & MMI3G+ bluetooth security profile.
A0115292041097-12018-02-05. Service bulletin. ENGINE; ELECTRICAL SYSTEM. The MIL is on. Customer may report that the engine runs irregularly. DTCs are stored in the ECM. On the camshaft adjustment valve, the filter element can loosen. There is no consequential damage from loosened particles in the oil circuit. They are gathered by the oil filter.
A211522 2039006-2018-02-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Supersedes Technical Service Bulletin Group 21 number 14-21 dated November 26, 2014. The MIL is on. Customer may report a reduction in power. DTC P029900 (Turbo/Super Charger Underboost) is stored in the engine control module (ECM), J623 (address word 01). The circlip connecting the turbo wastegate actuator rod and the wastegate flap lever can fall off due to low tension of the clip. Consequently, the wastegate linkage becomes disconnected, causing MIL on and DTC P029900.
A871569 2020124-2018-02-05. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:APPLIANCE:AIR CONDITIONER. Supersedes Technical Service Bulletin Group 87 number 14-49 dated April 25, 2014. Air conditioning is inoperative. The HVAC blower functions normally. Battery discharged; however, when charged, there is no bus silence when vehicle ignition is off. The A/C pressure/temperature sensor, G395, leaks refrigerant. This causes sensor G395 to show an incorrect or implausible value when reading MVBs. An incorrect signal or a low refrigerant level in the system can cause the air conditioning compressor to deactivate. The LIN cable connecting the vehicle electrical system control module, J519, to sensor G395 is pinched or cut. This affects the A4/S4, A5/S5 Coupe and Cabriolet, and Q5 vehicles. The A6 and A8 are not affected by this type of failure. The pressure sensor G395/G65 sends an incorrect signal that prevents bus silence and the battery is discharged. Sensor G395 is a LIN slave of the vehicle electrical system control module. The vehicle electrical system control module transfers the information provided by the sensor via the comfort data bus to the climate control module, J255.
A0115312033806-72018-02-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 80 number 14-07 dated August 11, 2014. The MIL is on. Climate system heating performance is insufficient. Coolant level warning is on. Engine temperature is elevated. ?Limp Home? mode is active. Faults may be 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 as a result of coolant migration in the electrical harness, faults in 08-Heating and Air Conditioning Electronics that result from coolant migration in the electrical harness, or a faulty N82 control valve.
A911724 2036575-2018-02-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides an explanation for the customer regarding known software issues with the MIB & MMI3G+ bluetooth security profile.
A571740 2047432-2018-02-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains repair information for when the remote key has low range or the functions do not work. This is for all keys and there is no relevant DTCs stored.
A571738 2017082-2018-02-05. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin contains instructions for sychronizing the remote key after the battery has been disconnected or replaced.
A911682 2045580-2018-02-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information regarding a data connection message dur to the SIM card for T - Mobile subscribers.
A911677 2044940-2018-02-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This technical service bulletin provides software update instructions to fix an issue that prevents Google Earth from loading.
A011684 2037307-2018-02-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin provides information regarding a software update for an )2 sensor DTC.
A011680 2033806-2018-02-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin provides repair information when coolant control valves have coolant inside of their electrical connector.

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