Technical Service Bulletins (TSBs) for the 2004 S4 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:HYDRAULIC POWER ASSIST SYSTEM

    • TSB #480501

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

      POWER STEERING, NOISY. TO INCLUDE 2006 MODELS. *TT 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 #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 #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:
      #10015097

      COOLING SYSTEM PERFORMANCE LOW HEATER OUTPUT. *EH Read More »

    • TSB #0501

      Date Announced:
      APR 11, 2005
      NHTSA ID:
      #10015100

      FUEL INJECTORS UNNECESSARY REPLACEMENT. *EH 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-24-09-16

      Date Announced:
      AUG 07, 2009
      NHTSA ID:
      #10032291

      AUDI: MIL ON (MASS AIRFLOW SENSOR DTCS P0101, P0102, P0103, P0112, P0113 IN ECM). ENGINE HAS LOW PERFORMANCE WITHOUT SIGNIFICANT LOSS OF POWER OR STALLING. Read More »

    • TSB #TSB-24-08-04

      Date Announced:
      FEB 11, 2008
      NHTSA ID:
      #10032776

      AUDI: MIL ON (MASS AIRFLOW SENSOR DTCS P0101, P0102, P0103, P0112, P0113 IN ECM). ENGINE HAS LOW PERFORMANCE WITHOUT SIGNIFICANT LOSS OF POWER OR STALLING. MODELS S4, S4 CABRIOLET, ALLROAD, RS6, & R8. Read More »

    • TSB #20036582

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

      LOSES POWER OR WILL NOT MOVE AFTER STOP. *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:COOLING SYSTEM

    • TSB #190501

      Date Announced:
      FEB 02, 2005
      NHTSA ID:
      #10012765

      AFTER-RUN COOLANT PUMP, ACTIVATING (IB). TO INCLUDE 2005 S4 SEDAN, AVANT. *TT Read More »

    • TSB #0501

      Date Announced:
      FEB 02, 2005
      NHTSA ID:
      #10019414

      AFTER-RUN COOLANT PUMP -V51- MAY NOT OPERATE WHEN THE IGNITION IS SHUT OFF AND THE COOLANT TEMPERATURE IS ABOVE 112 DEGREES C. *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 »

    FUEL SYSTEM, OTHER

    • TSB #TSB-24-08-04

      Date Announced:
      FEB 11, 2008
      NHTSA ID:
      #10032776

      AUDI: MIL ON (MASS AIRFLOW SENSOR DTCS P0101, P0102, P0103, P0112, P0113 IN ECM). ENGINE HAS LOW PERFORMANCE WITHOUT SIGNIFICANT LOSS OF POWER OR STALLING. MODELS S4, S4 CABRIOLET, ALLROAD, RS6, & R8. Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION

    ELECTRICAL SYSTEM

    • TSB #0501

      Date Announced:
      NOV 16, 2005
      NHTSA ID:
      #10018223

      LIGHT SENSOR WARNING LIGHT ON INTERMITTENTLY AND CUSTOMER CONCERN ABOUT AUTOMATIC HEADLIGHT INSTRUMENT CLUSTER WARNING LIGHT ILLUMINATING FOR 1 SECOND ACCOMPANIED WITH A SHORT BEEP. *TT 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 »

    ELECTRICAL SYSTEM:SOFTWARE

    • TSB #SB-2028053/2

      Date Announced:
      OCT 03, 2012
      NHTSA ID:
      #10063871

      SUMMARY TO BE PROVIDED ON A FUTURE DATE. Read More »

    • 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 »

    • TSB #24 08 14

      Date Announced:
      MAR 18, 2008
      NHTSA ID:
      #10024682

      MIL ON, ENGINE RUNS ROUGH AFTER HOT START (DTC P0300-P0308 IN ECM). *NJ Read More »

    EXTERIOR LIGHTING:HEADLIGHTS

    • TSB #20056243

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

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

    • TSB #0402

      Date Announced:
      AUG 12, 2004
      NHTSA ID:
      #10009883

      LIGHTSENSOR WARNING LIGHT ON INTERMITTENTLY. *TT Read More »

    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 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 »