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Service bulletins for the 2013 Audi S4

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.

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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
Campaign Circula2017-12-05. Service bulletin. ENGINE; EQUIPMENT. Part quantity updated on SAGA sheet. The Owner?s Manual in certain 2013 model year Audi vehicles was printed with incorrect numerical callouts in the engine compartment overview artwork. This could cause confusion for anyone who relies on this information in order to identify key components within the engine compartment.
Campaign Circula2017-12-05. Service bulletin. EQUIPMENT; ENGINE. The Owner?s Manual in certain 2013 model year Audi vehicles was printed with incorrect numerical callouts in the engine compartment overview artwork. This could cause confusion for anyone who relies on this information in order to identify key components within the engine compartment.
A191453 2039018-2017-12-05. Service bulletin. ENGINE AND ENGINE COOLING. A small amount of dry or crusted coolant is seen on the coolant pump housing. The coolant level warning is not on. A minor coolant leak is possible during the break-in phase of the coolant seal on the coolant pump. The dry coolant marks are normal.
A171453 2038129-2017-12-05. Service bulletin. ENGINE. Supersedes Technical Service Bulletin Group 17 number 14-50 dated August 15, 2014. A check with the engine oil service dipstick T40178 is necessary, but the adjustment values for the dipstick are not available in the Elsa repair manual. Because of a system change, the adjustment values for the service dipstick T40178 were removed from the repair manual.
A011498 2038166-2017-12-05. Service bulletin. ENGINE AND ENGINE COOLING. The engine warning light is on after engine replacement. The engine is not running roughly. However, fault codes are stored in the engine control module (ECM). The fault codes occur at light load, between 8% and 14% accelerator pedal position. The programmed values for the misfire adaption are not automatically reset when the memory is deleted. The adaption must be reset after the engine is installed.
A011320 2033919-2017-12-05. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 01 number 13-16 dated July 19, 2013. MIL on. DTCs are stored in the engine control module. There may be slight power reduction at high RPMs. One of the vacuum actuators on intake runner bank 1 or bank 2 is defective. It is possible that the membrane on the vacuum actuator may tear. As a result, the intake manifold flaps do not function.
A011326 2033919-2017-12-05. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 01 number 13-20 dated August 2, 2013. MIL on. DTCs are stored in the engine control module. There may be slight power reduction at high RPMs. One of the vacuum actuators on intake runner bank 1 or bank 2 is defective. It is possible that the membrane on the vacuum actuator may tear. As a result, the intake manifold flaps do not function.
A011327 2033768-2017-12-05. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 01 number 13-89 dated May 2, 2013. MIL on. A cylinder misfire fault (DTC P0301 - P0306) with DTC P130A is stored in the engine control module (ECM), J623 (address word 01).
A191343 2034439-2017-12-05. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY; ENGINE AND ENGINE COOLING. The coolant warning light is illuminated. Coolant is leaking from the front intercooler radiator because of stone damage to the radiator. When vehicles are driven on gravel roads, there is a greater chance of front-end stone impact damage to the intercooler radiator.
A011316 2033919-2017-12-05. Service bulletin. POWER TRAIN; ENGINE. MIL on. DTCs are stored in the engine control module. There may be slight power reduction at high RPMs. One of the vacuum actuators on intake runner bank 1 or bank 2 is defective.
A011314 2033919-2017-12-05. Service bulletin. POWER TRAIN; ENGINE. MIL on. DTCs are stored in the engine control module. There may be slight power reduction at high RPMs. One of the vacuum actuators on intake runner bank 1 or bank 2 is defective.
A351309 2028085-2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 35 number 12-07 dated December 21, 2012. Customer may report that there is oil leaking under the vehicle. There are a number of possible sources for the leak. Leaking from the oil pan seal. Crack in the oil pan. Leak between gearbox housing and intermediate housing. The source of the leak may be confused with o-ring of drain plug.
A011378 2033379-2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING. DTC P164D00 (Oil pressure switch for reduced oil pressure malfunction) is stored in the engine control module, J623 (01). Red oil pressure warning light may be on. An oil filter that is too short is installed. The oil filter must be 155 mm.
A191335 2025303-2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 19 number 11-19 dated February 10, 2011. 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.
A191562 2025303-2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 19 number 15-61 dated July 7, 2015. 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.
A171565 2038129-2017-11-17. Service bulletin. ENGINE. Supersedes Technical Service Bulletin Group 17 number 15-63 dated June 2, 2015. A check with the engine oil service dipstick T40178 is necessary, but the adjustment values for the dipstick are not available in the Elsa repair manual. Because of a system change, the adjustment values for the service dipstick T40178 were removed from the repair manual.
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.
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.
Fluid Capacity C2017-11-08. Service bulletin. ENGINE; SERVICE BRAKES; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; VISIBILITY:WINDSHIELD; POWER TRAIN; EQUIPMENT; ENGINE AND ENGINE COOLING; STEERING. This document contains the fluid capacity chart.
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.
Fluid Cap Chart2017-11-08. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING; POWER TRAIN; STEERING; VISIBILITY:WINDSHIELD; SERVICE BRAKES. This document contains the fluid capacty chart.
A001463 2033576-2017-11-08. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Supersedes Technical Service Bulletin Group 00 number 13-49 dated May 14, 2013. Although the correct amount of oil was added to the engine during an oil change service, a check of the oil level shows that the oil level is not okay. When an unapproved aftermarket speed-filling device is used to add oil to the engine, the increased oil flow rate may force oil into the intake manifold or combustion chamber, creating the potential for engine damage.
A191450 2025303-2017-11-08. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 19 number 13-41 dated June 20, 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.
A011471 2036761-2017-11-08. Service bulletin. ENGINE AND ENGINE COOLING. The MIL is on. DTC P164B(00) is stored in the ECM. The oil pressure switch is defective.

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