Technical Service Bulletins (TSBs) for the 2004 A6 are official communications between Audi & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.

    STEERING:GEAR BOX (OTHER THAN RACK AND PINION)

    • TSB #TSB-38-09-01

      Date Announced:
      JUN 15, 2009
      NHTSA ID:
      #10032412

      AUDI: VEHICLE WILL NOT MOVE IN ANY GEAR. ATF PUMP BORDER BUSHING MAY FAIL AND CAUSE A LOSS OF OIL PRESSURE. THE ATF PUMP IS INCORPORATED IN THE VALVE BODY. THE PUMP IS NOT A SERVICEABLE PART. Read More »

    STEERING:HYDRAULIC POWER ASSIST SYSTEM

    • TSB #480501

      Date Announced:
      FEB 03, 2005
      NHTSA ID:
      #10012767

      POWER STEERING, NOISY. TO INCLUDE 2006 MODELS. *TT Read More »

    SUSPENSION

    • TSB #TSB-43-12-11

      Date Announced:
      OCT 29, 2012
      NHTSA ID:
      #10047699

      AUDI: THE CONTROL MODULE, AS A SAFEGUARD, WILL LOWER VEHICLE TO LOWEST POSITION AND ILLUMINATE WARNING LIGHT DUE TO FAILURE OF COMPRESSOR, FOR AIR SUSPENSION OR POOR PERFORMANCE, VEHICLE NOT ABLE TO BE ADJUSTED. Read More »

    SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

    • TSB #TSB-45-08-04

      Date Announced:
      NOV 19, 2008
      NHTSA ID:
      #10028008

      AUDI: ABS ACTIVATES DURING LIGHT BRAKE APPLICATION . CONTROL NOISES ARE HEARD FROM THE ABS UNIT AT LOW SPEED WITHOUT BRAKE APPLICATION. *PE Read More »

    SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE

    • TSB #TSB-45-08-04

      Date Announced:
      NOV 19, 2008
      NHTSA ID:
      #10028008

      AUDI: ABS ACTIVATES DURING LIGHT BRAKE APPLICATION . CONTROL NOISES ARE HEARD FROM THE ABS UNIT AT LOW SPEED WITHOUT BRAKE APPLICATION. *PE Read More »

    SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR

    • TSB #TSB-45-08-04

      Date Announced:
      NOV 19, 2008
      NHTSA ID:
      #10028008

      AUDI: ABS ACTIVATES DURING LIGHT BRAKE APPLICATION . CONTROL NOISES ARE HEARD FROM THE ABS UNIT AT LOW SPEED WITHOUT BRAKE APPLICATION. *PE Read More »

    ENGINE (PWS)

    • TSB #SB-01-15-29

      Date Announced:
      JUL 01, 2015
      NHTSA ID:
      #10058584

      AUDI: ENGINE, ON SOME VEHICLES, WOULD RUN IRREGULARLY OR HAVE MALFUNCTION INDICATOR LAMP (MIL) ON OR POSSIBLE FILTER ELEMENT FOR CAMSHAFT ADJUSTMENT VALVE CAN LOOSEN AND IN OIL CIRCUIT, THERE IS NO DAMAGE FROM LOOSENED PARTICLES. Read More »

    ENGINE AND ENGINE COOLING

    • TSB #AWA-08-04

      Date Announced:
      MAR 05, 2008
      NHTSA ID:
      #10025081

      ENGINE COOLANT TEMPERATURE SENSOR WARRANTY EXTENSION FOR CERTAIN 2001-2004 MODEL YEAR AUDI VEHICLES. *PE Read More »

    • TSB #0402

      Date Announced:
      NOV 02, 2005
      NHTSA ID:
      #10018217

      OIL LEAKS FROM UPPER ENGINE AREAS, DIAGNOSTIC GUIDELINES. *TT Read More »

    • TSB #0505

      Date Announced:
      OCT 28, 2005
      NHTSA ID:
      #10017783

      COOLANT LEAKAGE AROUND AUXILIARY COOLANT PUMP. COOLANT LIGHT MAY BE ILLUMINATED. *TT Read More »

    • TSB #190504

      Date Announced:
      MAY 16, 2005
      NHTSA ID:
      #10015583

      THE COOLANT RESERVOIR IS DIAGNOSED TO BE LEAKING AND INTENDED TO BE REPLACED. *TT Read More »

    • TSB #0501

      Date Announced:
      APR 19, 2005
      NHTSA ID:
      #10015101

      SECONDARY AIR INJECTION (AIR) PUMP MOTOR -V101- IS NOISY. *TT Read More »

    • TSB #0502

      Date Announced:
      APR 11, 2005
      NHTSA ID:
      #10015102

      FUEL INJECTORS UNNECESSARY REPLACEMENT. *EH Read More »

    ENGINE AND ENGINE COOLING:ENGINE

    • TSB #TSB-01-12-39

      Date Announced:
      JAN 12, 2012
      NHTSA ID:
      #10043525

      AUDI: ENGINE HAS REDUCED ENGINE PERFORMANCE WITHOUT LOSS OF POWER OR STALLING; CIRCUIT GROUNDS; FUEL QUALITY POOR; MIL IS CONSTANTLY ILLUMINATED OR FLASHING; ROUGH IDLE; IGNITION COILS INCORRECTLY INSTALLED; ELECTRICAL CONNECTIONS LOOSE ... Read More »

    • TSB #TSB-15-11-18

      Date Announced:
      JAN 25, 2011
      NHTSA ID:
      #10038249

      AUDI: THERE IS A TICKING NOISE FROM THE ENGINE AREA WHICH MAY BE CAUSED BY WEAR IN THE CAMSHAFT. *RM Read More »

    • TSB #20036582

      Date Announced:
      FEB 26, 2007
      NHTSA ID:
      #10022142

      LOSES POWER OR WILL NOT MOVE AFTER STOP. *KB Read More »

    • TSB #380702

      Date Announced:
      JAN 09, 2007
      NHTSA ID:
      #10021314

      SHUDDERS WHEN ACCELERATING AT 10 TO 50% THROTTLE FROM A STATIONARY POSITION, SOMETIMES WITH FLUCUATING ENGINE SPEED. *KB Read More »

    • TSB #0601

      Date Announced:
      FEB 08, 2006
      NHTSA ID:
      #10019458

      CONTROL HOUSING FOR CAMSHAFT ADJUSTER, ENSURING SHIM WASHER INSTALLATION WHEN REPAIRING. *TT Read More »

    • TSB #0402

      Date Announced:
      JUL 21, 2005
      NHTSA ID:
      #10008949

      ENGINE, INTAKE MANIFOLD MOUNTING BOLT TORQUE. AUDI S4,S4 CABRIOLET, ALLROAD, A6, A8L MODEL YEAR 2004. *MJ UPDATE. *TT Read More »

    • TSB #0402

      Date Announced:
      AUG 31, 2004
      NHTSA ID:
      #10009879

      VALVE COVER, DIAGNOSING OIL LEAKAGE FROM GASKETS. *TT Read More »

    ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

    • TSB #SAC-28F2-REV

      Date Announced:
      AUG 01, 2010
      NHTSA ID:
      #10036497

      AUDI: GASOLINE ENGINE VEHICLES; INSPECT, AND IF NECESSARY, REPLACE IGNITION COILS. VEHICLES AFFECTED BY THIS ACTION MAY HAVE IGNITION COILS THAT COULD MALFUNCTION UNDER CERTAIN CONDITIONS. ADDED FINAL MAILING PHASE-8/10 VIN INFORMATION. Read More »

    • TSB #SA-28F2 J1

      Date Announced:
      MAY 01, 2010
      NHTSA ID:
      #10033212

      AUDI: (REVISED) VEHICLES AFFECTED BY THIS ACTION MAY HAVE IGNITION COILS THAT COULD MALFUNCTION UNDER CERTAIN CONDITIONS. Read More »

    ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

    • TSB #0401

      Date Announced:
      JUL 30, 2004
      NHTSA ID:
      #10008916

      OIL LEAK IN AREA OF TURBOCHARGER. *MJ Read More »

    ENGINE AND ENGINE COOLING:COOLING SYSTEM

    • TSB #AWA-08-03

      Date Announced:
      FEB 11, 2008
      NHTSA ID:
      #10025301

      AUDI SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ENGINE COOLANT TEMPERATURE SENSOR WARRANTY EXTENSION FOR CERTAIN 2001-2004 AUDI MODEL YEAR VEHICLES. CSC WAS RECEIVED *PE Read More »

    ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS

    • TSB #0406

      Date Announced:
      DEC 13, 2004
      NHTSA ID:
      #10011880

      COOLANT LEAK AT OIL COOLER HOSES. *TT Read More »

    FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS

    • TSB #0501

      Date Announced:
      APR 12, 2005
      NHTSA ID:
      #10015098

      FUEL INJECTORS, UNNECESSARY REPLACEMENT. UPDATE. *TT Read More »

    • TSB #240501

      Date Announced:
      FEB 15, 2005
      NHTSA ID:
      #10012766

      FUEL INJECTORS, UNNECESSARY REPLACEMENT. *TT Read More »

    POWER TRAIN

    • TSB #0601

      Date Announced:
      JAN 27, 2006
      NHTSA ID:
      #10019108

      VEHICLE SHUDDERS WHEN ACCELERATING AT 10 TO 50% THROTTLE FROM A STATIONARY POSITION, SOMETIMES WITH FLUCTUATING ENGINE SPEED. *TT Read More »

    • TSB #320501

      Date Announced:
      OCT 25, 2005
      NHTSA ID:
      #10017650

      MIL ILLUMINATED, DTC 17125 STORED IN TRANSMISSION FAULT MEMORY-NO DRIVEABILITY CONCERN. TORQUE CONVERTER CLUTCH CIRCUIT PERFORMANCE OR STUCK OFF STORED IN TRANSMISSION FAULT MEMORY. *SC Read More »

    • TSB #370402

      Date Announced:
      OCT 20, 2005
      NHTSA ID:
      #10011573

      TRANSMISSION SHUDDERS PRIOR TO COMING TO A STOP. *TC Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION

    • TSB #370710

      Date Announced:
      JUN 22, 2007
      NHTSA ID:
      #10022453

      MIL ON, AND/OR MULTITRONIC TRANSMISSION IN EMERGENCY RUNNING MODE (DTC P0706 OR P1793 IN TCM). *KB Read More »

    • TSB #380704

      Date Announced:
      MAY 30, 2007
      NHTSA ID:
      #10021953

      VEHICLE WILL NOT MOVE IN ANY GEAR. *KB Read More »

    • TSB #0526

      Date Announced:
      NOV 16, 2005
      NHTSA ID:
      #10018221

      AUTHORIZATION REQUIREMENTS FOR AUTOMATIC TRANSMISSIONS. *TT Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

    • TSB #SB-37-09-06

      Date Announced:
      AUG 05, 2009
      NHTSA ID:
      #10032188

      AUDI: SWITCHING ON THE HEADLIGHTS CAUSES A LOW VOLTAGE, WHICH LEADS TO THE FAILURE OF THE DIAGNOSIS SIGNAL OF THE GEAR LEVER CIRCUIT BOARD. THE TCM RECOGNIZES A FAULT IN THE GEAR LEVER ELECTRONICS AND STORES DTC P753. Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL)

    • TSB #TSB-38-09-01

      Date Announced:
      JUN 15, 2009
      NHTSA ID:
      #10032412

      AUDI: VEHICLE WILL NOT MOVE IN ANY GEAR. ATF PUMP BORDER BUSHING MAY FAIL AND CAUSE A LOSS OF OIL PRESSURE. THE ATF PUMP IS INCORPORATED IN THE VALVE BODY. THE PUMP IS NOT A SERVICEABLE PART. Read More »

    ELECTRICAL SYSTEM

    • TSB #TSB-01-12-39

      Date Announced:
      JAN 12, 2012
      NHTSA ID:
      #10043525

      AUDI: ENGINE HAS REDUCED ENGINE PERFORMANCE WITHOUT LOSS OF POWER OR STALLING; CIRCUIT GROUNDS; FUEL QUALITY POOR; MIL IS CONSTANTLY ILLUMINATED OR FLASHING; ROUGH IDLE; IGNITION COILS INCORRECTLY INSTALLED; ELECTRICAL CONNECTIONS LOOSE ... Read More »

    • TSB #0405

      Date Announced:
      JUL 08, 2004
      NHTSA ID:
      #10008917

      UPDATE PROGRAMMING (FLASHING) TRANSMISSION CONTROL MODULE (TCM). *MJ Read More »

    ELECTRICAL SYSTEM:IGNITION

    • TSB #SA-28F2 J1

      Date Announced:
      MAY 01, 2010
      NHTSA ID:
      #10033212

      AUDI: (REVISED) VEHICLES AFFECTED BY THIS ACTION MAY HAVE IGNITION COILS THAT COULD MALFUNCTION UNDER CERTAIN CONDITIONS. Read More »

    • TSB #TSB-28F2-REV 7

      Date Announced:
      APR 01, 2010
      NHTSA ID:
      #10034846

      AUDI: GASOLINE ENGINE VEHICLES INSPECT, AND IF NECESSARY, REPLACE IGNITION COILS. VEHICLES AFFECTED BY THIS ACTION MAY HAVE IGNITION COILS THAT COULD MALFUNCTION UNDER CERTAIN CONDITIONS. (ADDED PHASE 7-APRIL 10 VIN INFORMATION). Read More »

    • TSB #TSB-28-10-04

      Date Announced:
      FEB 08, 2010
      NHTSA ID:
      #10034345

      AUDI: FOR INTERIM CLAIMS FOR 28F2/J1 VEHICLES CAMPAIGN ONLY. APPLICABLE VEHICLES MUST FALL WITHIN VIN RANGES NOTED. ENGINES 2.8L ARE NOT AFFECTED IN THIS SCOPE. COILS OF SCREW DOWN DESIGN (NON PENCIL TYPE) ARE ALSO NOT AFFECTED. Read More »

    ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

    • TSB #940711

      Date Announced:
      JUL 16, 2007
      NHTSA ID:
      #10022458

      HEADLIGHT RANGE CONTROL WARNING LIGHT ON. HEADLIGHTS ARE FUNCTIONING PROPERLY. *KB Read More »

    ELECTRICAL SYSTEM:SOFTWARE

    • TSB #TSB-00-10-02

      Date Announced:
      MAR 24, 2010
      NHTSA ID:
      #10035268

      AUDI: SOFTWARE VERSION MANAGEMENT (SVM) OPERATING INSTRUCTIONS. DETAILING THE GENERAL PROCESS FOR CARRYING OUT A SOFTWARE VERSION MANAGEMENT (SVM) SOFTWARE UPDATE FOR ANY TSB OR REQUIRED VEHICLE UPDATE (RVU). Read More »

    • TSB #TSB-01-09-06

      Date Announced:
      MAY 13, 2009
      NHTSA ID:
      #10032290

      AUDI: SOFTWARE VERSION MANAGEMENT (SVM), OPERATING INSTRUCTIONS. SVM IS A PROCESS TO UPDATE THE PROGRAMMING IN FLASHABLE (RE-PROGRAMMABLE) CONTROL MODULES AND/OR TO DOCUMENT CHANGES IN SOFTWARE LEVELS IN AUDI VEHICLES. Read More »

    • TSB #TSB-01-08-33

      Date Announced:
      DEC 15, 2008
      NHTSA ID:
      #10028768

      AUDI: SOFTWARE VERSION MANAGEMENT(SVM) OPERATING INSTRUCTIONS. ITS A PROCESS TO UPDATE THE PROGRAMMING IN FLASHABLE (REPROGRAMMABLE) CONTROL MODULES AND/OR TO DOCUMENT CHANGES IN SOFTWARE LEVELS IN ALL AUDI VEHICLES. Read More »

    EXTERIOR LIGHTING

    • TSB #0715

      Date Announced:
      NOV 07, 2007
      NHTSA ID:
      #10023948

      EXTERIOR LIGHTS, MOISTURE ACCUMULATION. *NJ Read More »

    • TSB #TSB-94-07-15

      Date Announced:
      NOV 07, 2007
      NHTSA ID:
      #10032250

      AUDIO: EXTERIOR LIGHTS, MOISTURE ACCUMULATION. CONDENSATION IS VISIBLE ON THE INSIDE OF HEADLIGHTS, TAILLIGHTS, FOG LIGHTS, SIDE MARKER LIGHTS, FRONT TURN SIGNAL OR THIRD BRAKE LIGHT LENS. Read More »

    EXTERIOR LIGHTING:HEADLIGHTS

    • TSB #SB-37-09-06

      Date Announced:
      AUG 05, 2009
      NHTSA ID:
      #10032188

      AUDI: SWITCHING ON THE HEADLIGHTS CAUSES A LOW VOLTAGE, WHICH LEADS TO THE FAILURE OF THE DIAGNOSIS SIGNAL OF THE GEAR LEVER CIRCUIT BOARD. THE TCM RECOGNIZES A FAULT IN THE GEAR LEVER ELECTRONICS AND STORES DTC P753. Read More »

    • TSB #20056243

      Date Announced:
      FEB 26, 2007
      NHTSA ID:
      #10022141

      HEADLIGHT AIMING, USING HELLA UNIVERSAL BEAMSETTER. *KB Read More »

    • TSB #2012749-2

      Date Announced:
      FEB 26, 2007
      NHTSA ID:
      #10025703

      EXTERIOR LIGHTS, MOSITURE ACCUMULATION. *PE Read More »

    EXTERIOR LIGHTING:HEADLIGHTS:CONCEALMENT DEVICES

    EXTERIOR LIGHTING:HEADLIGHTS:SWITCH

    • TSB #SB-37-09-06

      Date Announced:
      AUG 05, 2009
      NHTSA ID:
      #10032188

      AUDI: SWITCHING ON THE HEADLIGHTS CAUSES A LOW VOLTAGE, WHICH LEADS TO THE FAILURE OF THE DIAGNOSIS SIGNAL OF THE GEAR LEVER CIRCUIT BOARD. THE TCM RECOGNIZES A FAULT IN THE GEAR LEVER ELECTRONICS AND STORES DTC P753. Read More »

    EXTERIOR LIGHTING:FOG LIGHTS

    EXTERIOR LIGHTING:TAIL LIGHTS

    EXTERIOR LIGHTING:BACK UP LIGHTS

    EXTERIOR LIGHTING:BRAKE LIGHTS

    EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS

    VEHICLE SPEED CONTROL

    • TSB #37-13-07

      Date Announced:
      MAY 29, 2013
      NHTSA ID:
      #10052307

      AUDI: SOME VEHICLES MAY LACK POWER OR WILL NOT MOVE AFTER STOP DUE TO SIMULTANEOUSLY DEPRESSING THE BRAKE AND ACCELERATOR PEDALS. *JS Read More »

    WHEELS:LUGS/NUTS/BOLTS/STUDS

    • TSB #TSB-44-08-14

      Date Announced:
      NOV 19, 2008
      NHTSA ID:
      #10027923

      AUDI: WHEEL BOLTS REQUIRE TORQUE ADJUSTMENT. TORQUE STICKS AND TORQUE EXTENSION BARS ARE NOT APPROVED BY AUDI OF AMERICA, INC. AND SHOULD NOT BE USED TO APPLY TORQUE TO WHEEL BOLTS. ALL AUDI MODELS INCLUDED. Read More »

    EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

    • TSB #TSB-17-07-12

      Date Announced:
      OCT 19, 2007
      NHTSA ID:
      #10032264

      AUDI: ENGINE OIL PRESSURE IS BELOW SPECIFIED VALUE. OIL PRESSURE WARNING LIGHT MIGHT BE ILLUMINATED OR ILLUMINATED INTERMITTENTLY. REPAIRS INCLUDE REPLACING THE OIL PUMP MODULE. *PE Read More »

    EQUIPMENT ADAPTIVE/MOBILITY

    • TSB #TSB-44-13-46

      Date Announced:
      DEC 09, 2013
      NHTSA ID:
      #10054859

      AUDI: ON CERTAIN VEHICLES, USE CALIBRATED TORQUE WRENCH AND NOT TORQUE STICKS, TORQUE EXTENSION BARS AND IMPACT GUNS/WRENCHES NOT APPROVED FOR USAGE ON WHEEL BOLTS BY MANUFACTURER, THAT CAN CAUSE DAMAGE TO BRAKE, STEERING WHEEL, HUB. Read More »

    UNKNOWN OR OTHER

    • TSB #TSB-17-07-12

      Date Announced:
      OCT 19, 2007
      NHTSA ID:
      #10032264

      AUDI: ENGINE OIL PRESSURE IS BELOW SPECIFIED VALUE. OIL PRESSURE WARNING LIGHT MIGHT BE ILLUMINATED OR ILLUMINATED INTERMITTENTLY. REPAIRS INCLUDE REPLACING THE OIL PUMP MODULE. *PE Read More »