Service bulletins for the 2009 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.
775 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| A001578 2021205- | 2017-11-17. Service bulletin. EQUIPMENT:OTHER:LABELS. Supersedes Technical Service Bulletin Group 00 number 10-05 dated June 14, 2010. VIN plate and/or B-Pillar Safety Certification label requires replacement. |
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| A571516 2024111- | 2017-11-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Supersedes Technical Service Bulletin Group 69 number 12-22 dated February 13, 2012. After the comfort system central control module, J393 (address word 05) is replaced, the control module cannot be coded via SVM spec/actual. Any time a comfort system central control module, J393 (address word 05), is replaced, the new control module must be coded and parameterized with online SVM spec/actual or an SVM code. If the SVM spec/actual returns a response of ?Check Hardware?, then an SVM code is required to code and parameterize the new control module. The SVM code can be found in Parts Bulletin 9-101, which can be found on the etkainfo.com web site. |
| A241551 2038212- | 2017-11-17. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 24 number 14-50 dated August 28, 2014. 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. |
| A171567 2027731- | 2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 17 number 15-60 dated April 24, 2015. In order to provide effective lubrication and cooling of internal engine components, all internal combustion engines consume a certain amount of engine oil. Oil consumption varies from engine to engine and may change significantly over the life of the engine. Typically, engines with specified break-in periods consume more oil during the break-in period, and the oil consumption will stabilize after the break-in period. Refer to the Owner?s Manual for specific break-in procedures. Under normal conditions, the rate of oil consumption depends on the quality and viscosity of the oil, the RPM at which the engine is operated, the ambient temperature and road conditions. Additional factors are the amount of oil dilution from water condensation or fuel residue and the oxidation level of the oil. Under certain driving conditions, internal engine pressure conditions in the 2.0 TFSI engine can negatively influence the rate of oil consumption. This condition can occur while the vehicle is operated in metro driving conditions; for example: stop-and-go traffic with extended idle periods. |
| A011309 2014753- | 2017-11-17. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. Supersedes Technical Service Bulletin Group 00 number 10-01 dated February 5, 2010. Excessive accumulation of deposits on intake valves, intake manifold, fuel injectors and combustion chambers. Engine runs rough after cold start. Excessive engine cranking time. Hesitations while driving. Rough engine idle. Reduced engine performance. Poor fuel economy. Conditions may be severe enough to illuminate the MIL in conjunction with storage of DTCs for misfire (example: P0300, P030x) and / or lean fuel system (example: P0171, P0174, P1128, P1130, P1136, P1138) in the engine control module (ECM). Condition may be caused by use of contaminated gasoline. Condition may be caused by use of gasoline with a low content of deposit control additives. |
| A191340 2033491- | 2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 19 number 13-36 dated April 15, 2013. Customer may report coolant leaking from the engine area. The leak can be traced to the connection of the water pump and the hose leading to the heater core. The seal ring is not the cause of the leak. |
| A191341 2025303- | 2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 19 number 13-35 dated March 25, 2013. Discontinuation and mixing of Audi-approved engine coolants. G11, G12, and G12+ coolants have been replaced by an improved version. G12++ coolant (for service available) has been introduced in MY 2005 for all engines. G13 has been introduced in MY 2008 as factory filling and service. |
| A211314 2031245- | 2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Supersedes Technical Service Bulletin Group 21 number 13-13 dated April 4, 2013. MIL on, DTC P0299 (Negative Pressure Deviation) is stored. Turbocharger waste gate flap has play. Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets DTC P0299 (Negative Pressure Deviation). |
| A301318 2028229- | 2017-11-17. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Supersedes Technical Service Bulletin Group 30 number 11-11 dated December 9, 2011. Customer may report that the vehicle does not start or only starts when the clutch pedal is pressed very firmly. The message ?Press clutch pedal to start vehicle? may appear in the instrument cluster. There may be clutch mechanism wear. |
| A461342 2033674- | 2017-11-17. Service bulletin. SERVICE BRAKES. Brakes on vehicles produced before September 3, 2012 (calendar week 36 of 2012), squeak or squeal when used with light to moderate force. |
| A461345 2033674- | 2017-11-17. Service bulletin. SERVICE BRAKES, HYDRAULIC. Supersedes Technical Service Bulletin Group 46 number 13-42 dated June 11, 2013. Brakes on vehicles produced before September 3, 2012 (calendar week 36 of 2012), squeak or squeal when used with light to moderate force. |
| A461346 2033674- | 2017-11-17. Service bulletin. SERVICE BRAKES, HYDRAULIC. Supersedes Technical Service Bulletin Group 46 number 13-45 dated June 12, 2013. Brakes on vehicles produced before September 3, 2012 (calendar week 36 of 2012), squeak or squeal when used with light to moderate force. |
| A851318 2033426- | 2017-11-17. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Supersedes Technical Service Bulletin Group 85 number 13-15 dated March 29, 2013. The trim panel at the defroster vent on the instrument panel is deformed. The trim panel is composed of a material which expands in a moist condition. The instrument panel restricts this expansion which leads to deformation of the trim. |
| A871342 2020124- | 2017-11-17. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Supersedes Technical Service Bulletin Group 87 number 12-37 dated November 16, 2012. 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 Audi 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. |
| A961364 2029384- | 2017-11-17. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 96 number 12-32 dated April 27, 2012. The customer is able to program one or more of the Homelink buttons using their garage door remote, but after a few days or weeks, one or more of the programmed Homelink buttons no longer function. The LED on the Homelink button that is no longer functioning now flashes slowly, indicating that no programming is stored. The customer?s transmitter operates at 295Mhz. At the workshop, the Homelink system can be programmed to the workshop garage door successfully. No trouble is found. No DTCs are stored in any control units. The garage door opener control module, J530, was designed with an operational frequency range in which the 295Mhz frequency works correctly during the initial programming of the system. Over time, the transmitting frequency can drift out of range (especially in warmer climates), causing the system to lose its programming. |
| A371275 2029808- | 2017-11-08. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Supersedes Technical Service Bulletin Group 37 number 12-53 dated June 11, 2012. Customer may report the vehicle holds second gear intermittently. New software in the Transmission Control Module (J217) addressed the condition. |
| A401227 2024318- | 2017-11-08. Service bulletin. SUSPENSION:FRONT:WHEEL BEARING. Supersedes Technical Service Bulletin Group 40 number 12-26 dated September 26, 2012. Clicking or clacking noise when maneuvering or parking. Normal driving dynamics may cause microscopic movements between the wheel bearing and wheel bearing housing. |
| A871234 2024644- | 2017-11-08. Service bulletin. STRUCTURE; EQUIPMENT. Supersedes Technical Service Bulletin Group 87 number 12-31 dated September 5, 2012. Moisture in the driver or front passenger foot well. Due to a faulty and / or incorrectly installed condensation drain hose, condensation from the evaporator could enter the front foot well areas through a gap between the body and the sealing surface of the drain hose. |
| A871237 2020124- | 2017-11-08. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 87 number 12-32 dated September 5, 2012. 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 J519 Central Electrics Control unit to Sensor G395 is pinched or cut. This affects the A4/S4, A5/S5 Coupe and Cabriolet, and Audi 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 Vehicle Electrical System Control Module J519. Vehicle Electrical System Control Module J519 transfers the information provided by the sensor via the comfort data bus to Climate Control Module J255. |
| A941296 2027773- | 2017-11-08. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS; EQUIPMENT; ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 94 number 12-69 dated March 15, 2012. Part or all of the daytime running lights do not work on vehicles with LED DRLs. For vehicles with halogen DRLs, please reference TSB 2017488, 94 Halogen Daytime running lights do not work. In the past, the daytime running light bulbs were a serviceable part. In this application, the LED strip cannot be replaced, and may have an associated control module. This TSB is for servicing information only. |
| A011256 2031368- | 2017-11-08. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. MIL on. Engine misfire. Poor performance. 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. |
| A011257 2028344- | 2017-11-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 01 number 12-51 dated July 18, 2012. Noises/inconsistent engine operation after cold start during the catalyst heating phase. The customer may interpret this engine roughness as misfiring. To comply with the legal requirements on exhaust gas emissions according to the LEV-1 and LEV-2 standards, a high exhaust gas quality must be ensured. The necessary catalyst only operates at a temperature over 300°C (572°F). To achieve this, the catalyst is heated up. The catalyst heating phase is achieved by a late ignition angles and by introducing additional fresh air to the exhaust valves (secondary air system). Late ignition angles make sure that the exhaust gas from the cylinders has a higher temperature. This exhaust gas includes fuel that is un-burnt, and was deliberately injected into great quantities. The secondary air system adds fresh air to the exhaust gas as it leaves the cylinder and the extra fuel is burnt. As a result, the temperature of the exhaust gas and of the catalyst increases quickly. The afterburning in the exhaust manifold before catalyst changes the sound characteristic of the engine. This heating-up of the catalyst, including afterburning, is normal and has no effect on the service life of the engine. During this catalyst heating phase the engine has increased idle speed, may have increased vibrations, and a different sound characteristic. Depending on conditions the time of the catalyst heating phase varies. |
| A151225 2031085- | 2017-11-08. Service bulletin. ENGINE; ELECTRICAL SYSTEM. MIL on. DTCs for the cam actuators are stored in ECM memory. After the activation of the cam actuator to change to the other cam profile, the pin of the actuator is pushed back in by the cam. This is confirmed by a voltage impulse, which is registered by the engine control unit and confirms the operation. If this does not happen, or not at the right time, a DTC "implausible signal" is saved in ECM memory. Check the distance of the pin tip of the cam actuator for valve lift system to the camshaft when it is not operated with a gauge. The measurement of the tip to the basic camshaft circle outside of the groove must be taken. If this measurement is 0.9mm, the actuator 06E103697J must be installed. The actuator 06E103697J must only be used, if the measurement is 0.9mm or bigger. |
| A171232 2018550- | 2017-11-08. Service bulletin. ENGINE. Supersedes Technical Service Bulletin Group 17 number 12 - 31 dated August 30, 2012. Oil consumption measurement - Repair Authorization (CA). In order to provide effective lubrication and cooling of internal engine components, all internal combustion engines consume a certain amount of engine oil. Oil consumption varies from engine to engine and may change significantly over the life of the engine. Typically engines with specified break-in periods consume more oil during the break-in period, and the oil consumption will stabilize after the break-in period. Refer to the Owner's Manual for specific break-in procedures. Under normal conditions, the rate of oil consumption depends on the quality and viscosity of the oil, the RPM at which the engine is operated, the ambient temperature and road conditions. Additional factors are the amount of oil dilution from water condensation or fuel residue and the oxidation level of the oil. |
| A211210 2031245- | 2017-11-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ELECTRICAL SYSTEM. Mil on, DTC P0299 Negative Pressure Deviation. Turbocharger waste gate flap has play. Under certain driving conditions the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap which sets the DTC P0299 Negative Pressure Deviation. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.