Technical Service Bulletins (TSBs) for the 1998 A4 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:PUMP

    • TSB #092603

      Date Announced:
      SEP 26, 2003
      NHTSA ID:
      #10006830

      ZF VH RECALL OF THE ZF STEERING PUMP, SUPPLIED TO WD'S FOR REPLACEMENT OF THE AUDI A4 PASSAT P/N 8D0 145 156FX INSTEAD OF THE CORRECT ZF P/N 7691 955 276ZW. 2004 AUDI A4 ALSO INCLUDED. *TT Read More »

    SUSPENSION:FRONT

    • TSB #400101

      Date Announced:
      SEP 19, 2001
      NHTSA ID:
      #627071

      SUBJECT REGARDING NOISY FRONT SUSPENSION. *JG Read More »

    SUSPENSION:FRONT:CONTROL ARM:LOWER ARM

    • TSB #JE

      Date Announced:
      NOV 24, 2004
      NHTSA ID:
      #10011699

      CHECK/REPLACE REPLACE FRONT SUSPENSION LOWER CONTROL ARMS. *TC Read More »

    • TSB #11242004

      Date Announced:
      NOV 24, 2004
      NHTSA ID:
      #10016418

      SERVICE ACTION JE CAMPAIGN-CHECK/REPLACE FRONT SUSPENSION LOWER CONTROL ARMS. AUDI HAS FOUND THAT IN RARE CASES, ONE OR BOTH FRONT SUSPENSION LOWER CONTROL ARMS ON AFFECTED VEHICLES CAN EXHIBIT WEAR, EVEN THOUGH THE DAMAGE TO THE RUBBER ... Read More »

    • TSB #042804

      Date Announced:
      APR 28, 2004
      NHTSA ID:
      #10007130

      SERVICE ACTION TO INSPECT LOWER CONTROL ARM SEALS. *TT Read More »

    SUSPENSION:REAR

    • TSB #980298

      Date Announced:
      JUN 24, 1998
      NHTSA ID:
      #601885

      EXPERIENCING KNOCKING/CREAKING NOISES FROM REAR AXLE. *YC 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:ENGINE

    • TSB #17 08 03

      Date Announced:
      MAR 11, 2008
      NHTSA ID:
      #10024407

      ENGINE OIL PRESSURE TOO LOW - ENGINE FLUSH. *NJ UPDATED 4/30/08. *NJ Read More »

    • TSB #2012833

      Date Announced:
      MAY 17, 2007
      NHTSA ID:
      #10021439

      ENGINE OIL PRESSURE TOO LOW - ENGINE FLUSH. *KB Read More »

    • TSB #0604

      Date Announced:
      APR 07, 2006
      NHTSA ID:
      #10020721

      OIL SLUDGE LIMITED WARRANTY EXTENSION. *KB Read More »

    • TSB #0431

      Date Announced:
      AUG 11, 2005
      NHTSA ID:
      #10016508

      REPAIRS OF OIL SLUDGE RELATED PROBLEMS. *TT Read More »

    • TSB #0402

      Date Announced:
      JUL 26, 2005
      NHTSA ID:
      #10015982

      ENGINE OIL SPECIFICATIONS, OIL CAPACITY, OIL FILTER. TO INCLUDE AUDI 24 2006. *TT Read More »

    • TSB #0402

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

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

    • TSB #0420

      Date Announced:
      AUG 26, 2004
      NHTSA ID:
      #10009876

      OIL SLUDGE - WARRANTY EXTENSION. SERVICE CIRCULAR - WARRANTY. *TT Read More »

    • TSB #0401

      Date Announced:
      AUG 05, 2004
      NHTSA ID:
      #10009880

      ENGINE OIL SPECIFICATIONS, OIL CAPACITY, OIL FILTER. *TT THIS BULLETIN REPLACES BULLETIN 04-01 DATED JAN. 12, 2004. 2004 CABRIOLET, AUDI INCLUDED. *TT Read More »

    • TSB #0403

      Date Announced:
      AUG 05, 2004
      NHTSA ID:
      #10009881

      LOW ENGINE OIL PRESSURE LIGHT IS ON. AUDI CABRIOLET 2004 INCLUDED. *TT Read More »

    • TSB #0420

      Date Announced:
      AUG 01, 2004
      NHTSA ID:
      #10009900

      WARRANTY EXTENSION COVERING CERTAIN OIL SLUDGE RELATED REPAIRS. *TT Read More »

    • TSB #9804

      Date Announced:
      DEC 18, 1998
      NHTSA ID:
      #604438

      VEHICLE EXHIBITING A WHINING / WHIRRING TYPE NOISE AT CERTAIN MPH RANGES. *TT Read More »

    • TSB #9706249701F

      Date Announced:
      JUN 24, 1997
      NHTSA ID:
      #53627

      SUBJECT ON CYLINDER HEAD REMOVAL AND INSTALLATION. *YC Read More »

    ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

    • TSB #150102

      Date Announced:
      MAY 24, 2001
      NHTSA ID:
      #621505

      A CONDITION MAY EXIST WHERE THE ENGINE CRANKS BUT WILL NOT START. *TT Read More »

    • TSB #150101

      Date Announced:
      FEB 13, 2001
      NHTSA ID:
      #619856

      A CONDITION MAY EXIST WHERE THE ENGINE MAY CRANK BUT WILL NOT START. *TT Read More »

    ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

    • TSB #0521

      Date Announced:
      OCT 13, 2005
      NHTSA ID:
      #10016506

      THE WARRANTY IS EXTENDED FOR SUBJECT VEHICLES TO 168,000 KM (105,000 MILES), REGARDLESS OF TIME IN SERVICE, FOR ENGINE DAMAGE RESULTING FROM A BROKEN TIMING BELT. *TT Read More »

    • TSB #JK

      Date Announced:
      JUL 01, 2005
      NHTSA ID:
      #10015577

      CUSTOMER SATISFACTION CAMPAIGN JK TO INSPECT THE TIMING BELT ON VEHICLES WITH INTERNAL ENGINE DAMAGE RESULTING FROM A BROKEN TIMING BELT. *TT Read More »

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

    • TSB #9801

      Date Announced:
      OCT 23, 1998
      NHTSA ID:
      #603131

      TURBOCHARGER, FAILURE DUE TO LACK OF LUBRICATION. *YC 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, 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 »

    POWER TRAIN:AUTOMATIC TRANSMISSION

    • TSB #9803

      Date Announced:
      DEC 18, 1998
      NHTSA ID:
      #604441

      PROCEDURES ON INSTALLING TRANSMISSION SOUND DEADENING SHIELDS *TT Read More »

    ELECTRICAL SYSTEM

    • TSB #0401

      Date Announced:
      JUN 11, 2004
      NHTSA ID:
      #10008077

      THROTTLE VALVE CONTROL MODULE - J338-, WILL NOT ADAPT. *MJ Read More »

    • TSB #11

      Date Announced:
      OCT 01, 1999
      NHTSA ID:
      #621502

      THIS TECHNICAL REPAIR MANUAL CONTAINS THE ELECTRICAL WIRING DIAGRAMS, TROUBLESHOOTING AND COMPLENT LOCATIONS. *TT Read More »

    ELECTRICAL SYSTEM:WIRING:INTERIOR/UNDER DASH

    • TSB #900104

      Date Announced:
      NOV 07, 2001
      NHTSA ID:
      #627106

      SUBJECT REGARDING INSTRUMENT CLUSTER, DRIVER'S INFORMATION DISPLAY FADES. *JG Read More »

    • TSB #900102

      Date Announced:
      SEP 28, 2001
      NHTSA ID:
      #627068

      SUBJECT REGARDING INSTRUMENT CLUSTER, DRIVER'S INFORMATION DISPLAY FADES. *JG Read More »

    EXTERIOR LIGHTING:HEADLIGHTS

    EXTERIOR LIGHTING:HEADLIGHTS:CONCEALMENT DEVICES

    EXTERIOR LIGHTING:FOG LIGHTS

    EXTERIOR LIGHTING:TAIL LIGHTS

    EXTERIOR LIGHTING:BACK UP LIGHTS

    EXTERIOR LIGHTING:BRAKE LIGHTS

    EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS

    VISIBILITY:GLASS, SIDE/REAR

    • TSB #9803

      Date Announced:
      AUG 27, 1998
      NHTSA ID:
      #603331

      EXPERIENCING CREAKING / POPPING NOISES FROM REAR WINDOW. *YC Read More »

    AIR BAGS

    • TSB #980698

      Date Announced:
      JUN 15, 1998
      NHTSA ID:
      #601884

      SUBJECT ON AIRBAG SYSTEM ON BOARD DIAGNOSTIC (OBD) FOR VEHICLES WITH REAR SEAT BELT TENSIONERS. *YC Read More »

    STRUCTURE:BODY

    STRUCTURE:BODY:DOOR

    • TSB #9902

      Date Announced:
      MAY 27, 1999
      NHTSA ID:
      #606254

      CONDITIONS WITH CREAKING NOISE FROM CENTER ARMREST ON VEHICLES VIN 8D_WA240851. *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:ELECTRICAL

    • TSB #980591

      Date Announced:
      APR 28, 1998
      NHTSA ID:
      #601076

      INSTALLATION INSTRUCTIONS FOR CELLULAR TELEPHONE. *YC Read More »

    • TSB #970398

      Date Announced:
      DEC 23, 1997
      NHTSA ID:
      #600499

      INSTALLATION INSTRUCTIONS ON CELLULAR TELEPHONE. *YC Read More »

    EQUIPMENT:MECHANICAL:CARRIER/RACK

    • TSB #9801

      Date Announced:
      AUG 19, 1998
      NHTSA ID:
      #603326

      SUBJECT ON LUGGAGE COVER HANDLE, REPLACING. *YC Read More »

    EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

    • TSB #A9810

      Date Announced:
      MAY 31, 1998
      NHTSA ID:
      #601538

      SUBJECT ON THE AUDI A4 REPAIR MANUAL. *YC 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 #0514

      Date Announced:
      OCT 13, 2005
      NHTSA ID:
      #10017657

      WARRANTY EXTENSION 1997-1999 MODEL YEAR. *TT Read More »

    • TSB #9801

      Date Announced:
      AUG 31, 1998
      NHTSA ID:
      #603332

      SUBJECT ON FLOOR MAT FASTENER VARIATIONS. *YC Read More »

    • TSB #980198

      Date Announced:
      JUN 16, 1998
      NHTSA ID:
      #601886

      INCREASING DISTANCE RANGE FOR FOLDING KEY ( KEYLESS REMOTE TRANSMITTER ). *YC Read More »

    • TSB #A9810

      Date Announced:
      MAY 31, 1998
      NHTSA ID:
      #601538

      SUBJECT ON THE AUDI A4 REPAIR MANUAL. *YC Read More »

    • TSB #980291

      Date Announced:
      MAR 31, 1998
      NHTSA ID:
      #600913

      VEHICLES WITH CONCERT RADIO WITHOUT BOSE SOUND SYSTEM MAY EXHIBIT AN INOPERATIVE AND / OR DISTORTED REAR SPEAKER. *YC Read More »