Technical Service Bulletins (TSBs) for the 2001 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.

    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 #0501

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

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

    ENGINE AND ENGINE COOLING:ENGINE

    • TSB #20036582

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

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

    • TSB #0402

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

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

    • TSB #0406

      Date Announced:
      AUG 30, 2004
      NHTSA ID:
      #10009877

      UDPATE PROGRAMMING (FLASHING) ENGINE CONTROL MODULE (ECM) TO CORRECT COLD START ENGINE STUMBLE. *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 »

    FUEL SYSTEM, OTHER

    • TSB #0408

      Date Announced:
      SEP 10, 2004
      NHTSA ID:
      #10009732

      LONG TERM FUEL TRIM - SYSTEM TOO RICH. DIAGNOSTIC TROUBLE CODE P1123, P1125, P1137 AND P1139. *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 »

    EXTERIOR LIGHTING:HEADLIGHTS

    • TSB #20056243

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

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

    STRUCTURE:BODY:TRUNK LID

    • TSB #550101

      Date Announced:
      SEP 28, 2001
      NHTSA ID:
      #627061

      SUBJECT REGARDING REAR LID, LUBRICATING HINGES TO ALLEVIATE STIFFNESS. *JG 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 »

    VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

    • TSB #0502

      Date Announced:
      AUG 09, 2005
      NHTSA ID:
      #10016518

      UNNECESSARY ECM AND/OR ACCELERATOR PEDAL REPLACEMENT. *TT Read More »

    TIRES

    • TSB #171100

      Date Announced:
      NOV 17, 2000
      NHTSA ID:
      #615876

      THIS SAMPLE LETTER PROVIDES INFORMATION ON THE SPECIALLY DESIGNED LOW ASPECT RATIO, ULTRA HIGH PERFORMANCE TIRES. *TT Read More »

    • TSB #AWA0011

      Date Announced:
      NOV 15, 2000
      NHTSA ID:
      #615874

      SUBJECT REGARDING AUDI OF AMERICA, INC. CUSTOMER SATISFACTION PROGRAM FOR CERTAIN VEHICLES EQUIPPED WITH 225 / 45R17 / 91Y LOW ASPECT RATIO, ULTRA HIGH PERFORMANCE TIRES. *TT Read More »

    • TSB #151100

      Date Announced:
      NOV 15, 2000
      NHTSA ID:
      #615875

      THIS LETTER ADDRESSES DEFECT ALLEGATIONS MADE IN THE SEPTEMBER 25TH ISSUE OF BUSINESS WEEK WITH RESPECT TO THE BRIDGESTONE RE040 LOW ASPECT RATIO, ULTRA HIGH PERFORMANCE TIRES. *TT 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 »