Technical Service Bulletins (TSBs) for the 1998 911 are official communications between Porsche & 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 AND ENGINE COOLING:ENGINE

    • TSB #101005

      Date Announced:
      OCT 10, 2005
      NHTSA ID:
      #10018155

      HANDLING PTFE CRANKSHAFT SEALS. 8JB Read More »

    • TSB #0204

      Date Announced:
      OCT 14, 2002
      NHTSA ID:
      #10010768

      SECONDARY OIL FILTER BLEED BACK. P/N - 993 107 203 03. *TT Read More »

    FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

    • TSB #D76

      Date Announced:
      MAY 08, 2008
      NHTSA ID:
      #10025182

      PARTS WITHDRAWN. PORSCHE CARS NORTH AMERIC REQUESTS RETURN OF THE FOLLOWING UNIT TO PCNA, BUT ONLY IN CASES WHERE THE DEFECT IS VISIBLE: PART NUMBER 955 110 235 01, DESCRIPTION FUEL LINE. *PE Read More »

    VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING

    • TSB #D77

      Date Announced:
      MAY 21, 2008
      NHTSA ID:
      #10025186

      PARTS WITHDRAW; PORSCHE CARS NORTH AMERICA REQUESTS RETURN OF THE FOLLOWING UNITS TO PCNA: PART NUMBERS 955 628 320 00 AND 955 628 321 00; DESCRIPTION TIP SWITCH. *PE Read More »

    UNKNOWN OR OTHER

    • TSB #PK-D8-16

      Date Announced:
      MAR 02, 2011
      NHTSA ID:
      #10038544

      PORSCHE: INFORMATION ON HOW TO READ THE VIN. *RM Read More »

    • TSB #0203

      Date Announced:
      AUG 16, 2002
      NHTSA ID:
      #10010766

      EXCHANGE ENGINES AND TRANSMISSIONS FOR WARRANTY. THIS BULLETIN REPLACES BULLETIN WTY0203 DATED 2-15-02. *TT Read More »