Technical Service Bulletins (TSBs) for the 1993 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 »

    EXTERIOR LIGHTING:HEADLIGHTS

    • TSB #20056243

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

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

    EQUIPMENT

    • TSB #SM 44-2017 EN

      Date Announced:
      JUN 28, 2017
      NHTSA ID:
      #10155644

      This special notice is to inform dealers to return all part numbers listed in the document and order the superseded part numbers going forward. Read More »

    • TSB #ATE-17-05

      Date Announced:
      MAR 03, 2017
      NHTSA ID:
      #10128222

      Due to increasing requests for high voltage personal protective equipment (HVE PPE) for dealer technicians working with high voltage vehicles (Hybrid, Plugin Hybrid, Electric Vehicle), the Volkswagen Tools and Equipment Team has ... Read More »

    UNKNOWN OR OTHER

    • TSB #AUD4927ENG

      Date Announced:
      JUL 10, 2014
      NHTSA ID:
      #10249054

      Due to new Minnesota state regulations regarding biofuels, biodiesel blends of B5 or less may not be available in the State of Minnesota. Read More »

    • TSB #Update91i8

      Date Announced:
      MAY 13, 2014
      NHTSA ID:
      #10249085

      Google Maps Street View (NVLW)) Read More »