Technical Service Bulletins (TSBs) for the 1999 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.

    SUSPENSION

    • TSB #No. 89-11

      Date Announced:
      MAR 24, 2022
      NHTSA ID:
      #10209869

      Technical information - adjust values for suspension alignment: using current values and observing specifcations. Read More »

    SUSPENSION:FRONT:SPRINGS:COIL SPRINGS

    • TSB #122-N7T9K-05

      Date Announced:
      APR 17, 2018
      NHTSA ID:
      #10138295

      Subject: Replacing the coil spring on the front axle during repairs Information: Coil spring for the respective chassis no longer available. Read More »

    SUSPENSION:MULTIPLE AXLE

    • TSB #122-R2V6G-07

      Date Announced:
      JUN 07, 2019
      NHTSA ID:
      #10162211

      Instructions for replacing the coil spring on the rear axle now that the original part is no longer available for the respective chassis. Read More »

    BRAKES (PWS)

    • TSB #No. 1801.4

      Date Announced:
      MAR 30, 2022
      NHTSA ID:
      #10209901

      Advanced technical information for a brake squeal. Read More »

    • TSB #122-S6Q2R-06

      Date Announced:
      MAY 30, 2018
      NHTSA ID:
      #10188291

      Resubmitting at request of Mr. Bernard Hardgrave. Advanced technical information on brake fluid for all Porsche vehicles. Read More »

    • TSB #ATIALL41605

      Date Announced:
      MAR 24, 2016
      NHTSA ID:
      #10198525

      Understanding and addressing brake squeal complaints. Read More »

    SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM:HOSES, LINES/PIPING, AND FITTINGS

    • TSB #2454

      Date Announced:
      SEP 10, 1998
      NHTSA ID:
      #609790

      RECOMMENDED PROCEDURES WHEN WORKING WITH VACUUM LINES AND HOSES. YD Read More »

    ENGINE (PWS)

    • TSB #122-T6A9F-02

      Date Announced:
      JAN 07, 2020
      NHTSA ID:
      #10170983

      Parts withdrawal for various parts that were used in Recall and workshop campaigns. Read More »

    ENGINE AND ENGINE COOLING

    • TSB #No. 14-23

      Date Announced:
      JUL 31, 2023
      NHTSA ID:
      #10240439

      Manufacturers certificate for allocation of approved engine oils Read More »

    • TSB #No. 02-23-1

      Date Announced:
      MAR 24, 2023
      NHTSA ID:
      #10233941

      Manufacturers certificate for approved engine C20 engine oils. Read More »

    • TSB #No. 04-23

      Date Announced:
      FEB 13, 2023
      NHTSA ID:
      #10232392

      Overview of approved engine C40 oils for all Porsche models that use C40 oil. Read More »

    • TSB #No. 03-23

      Date Announced:
      FEB 13, 2023
      NHTSA ID:
      #10232391

      Overview of approved engine C30 oils for all Porsche models that use C30 oil. Read More »

    • TSB #No. 05-23

      Date Announced:
      FEB 13, 2023
      NHTSA ID:
      #10232393

      Overview of approved engine A40 oils for all Porsche models that use A40 oil. Read More »

    • TSB #No. 35-22

      Date Announced:
      JUL 30, 2022
      NHTSA ID:
      #10217270

      Overview of approved engine C30 oils for Porsche models using C30 oils. Read More »

    • TSB #No. 36-22

      Date Announced:
      JUL 30, 2022
      NHTSA ID:
      #10217271

      Instructions on the manufacturers certificate for approve Porsche A40 engine oils. Read More »

    • TSB #No. 31-22

      Date Announced:
      JUL 30, 2022
      NHTSA ID:
      #10217275

      Overview of approved engine C40 engine oils for all Porsche models using this oil. Read More »

    • TSB #No. 33-22

      Date Announced:
      JUL 30, 2022
      NHTSA ID:
      #10217276

      Overview of approved engine C20 engine oils for all Porsche models using this oil. Read More »

    • TSB #No. 22100

      Date Announced:
      JUL 07, 2022
      NHTSA ID:
      #10217171

      Special tools information for VAS 5161A tool kit for valve cotter R&I and cylinder head repair Read More »

    • TSB #No. D599

      Date Announced:
      MAR 14, 2022
      NHTSA ID:
      #10209855

      Parts information for parts withdrawal involving the valve spring. Part numbers affected are PAB109623 and 958109623. Read More »

    • TSB #No. 06-22

      Date Announced:
      FEB 24, 2022
      NHTSA ID:
      #10208683

      Instructions on the manufacturers certificate for allocation of approved engine oils up until MY2020. (starting back at MY1984). An overview of the approved engine oils. Read More »

    • TSB #No. 61-21

      Date Announced:
      AUG 31, 2021
      NHTSA ID:
      #10200773

      List of approved engine oils for all Porsche models using C40 oil. Read More »

    • TSB #No. 60-21

      Date Announced:
      AUG 31, 2021
      NHTSA ID:
      #10200775

      List of approved engine C30 engine oils for all Porsche vehicles using C30 oil. Read More »

    • TSB #No. 59-21

      Date Announced:
      AUG 31, 2021
      NHTSA ID:
      #10200776

      List of approved C20 engine oils for all Porsche models using C20 oil. Read More »

    • TSB #No. 13-21

      Date Announced:
      MAR 26, 2021
      NHTSA ID:
      #10189886

      List of approved C20 style engine oils for classic and new Porsche models since 1984. Read More »

    • TSB #No. 03-21

      Date Announced:
      MAR 05, 2021
      NHTSA ID:
      #10189698

      List of approved C20 engine oils for all new and classic Porsche models 1984 and newer. Read More »

    • TSB #No. 07-21-1

      Date Announced:
      MAR 05, 2021
      NHTSA ID:
      #10189702

      List of approved C30 engine oils for all new and Classic Porsche vehicles MY1984 and newer. Read More »

    • TSB #No. 08-21

      Date Announced:
      MAR 05, 2021
      NHTSA ID:
      #10189703

      List of approved C40 engine oils for new and classic Porsche vehicles MY 1984 and newer. Read More »

    • TSB #No. 09-21

      Date Announced:
      MAR 05, 2021
      NHTSA ID:
      #10189704

      List of approved A40 style engine oils for new and classic Porsche vehicles MY 1984 and newer. Read More »

    • TSB #No. 53-20

      Date Announced:
      DEC 03, 2020
      NHTSA ID:
      #10185091

      List of approved C40 style engine oils for new and classic Porsche vehicles. Read More »

    • TSB #No. 54-20

      Date Announced:
      DEC 03, 2020
      NHTSA ID:
      #10185093

      List of approved A40 style engine oils for new and classic Porsche models. Read More »

    • TSB #No. 2000

      Date Announced:
      OCT 28, 2020
      NHTSA ID:
      #10182276

      Advanced Technical information on a NVH Lubrication kit. Read More »

    • TSB #No. 33-20

      Date Announced:
      SEP 03, 2020
      NHTSA ID:
      #10180488

      Overview of Approved Porsche C20 Engine Oils Read More »

    • TSB #No. 16-20

      Date Announced:
      MAY 14, 2020
      NHTSA ID:
      #10175902

      List of approved A40 engine oils for all applicable vehicles as of 1984. Read More »

    • TSB #122-M8J3B-05

      Date Announced:
      APR 22, 2020
      NHTSA ID:
      #10174598

      List of approved C40 engine oils for all Porsche models since 1984. Read More »

    • TSB #122-F4J4K-04

      Date Announced:
      MAR 23, 2020
      NHTSA ID:
      #10173051

      List of approved engine oils for all Porsche models. Read More »

    • TSB #122-S7K8Z-02

      Date Announced:
      JAN 30, 2020
      NHTSA ID:
      #10170996

      List of approved A40 engine oils for all Porsche vehicles since 1984. Read More »

    • TSB #122-Z2X7A-02

      Date Announced:
      JAN 30, 2020
      NHTSA ID:
      #10170997

      List of approved C20 engine oils for all Porsche vehicles since 1984. Read More »

    • TSB #122-T9S3B-02

      Date Announced:
      JAN 30, 2020
      NHTSA ID:
      #10171001

      List of approved C30 engine oils for all Porsche vehicles since 1984. Read More »

    • TSB #122-G2B4B-11

      Date Announced:
      OCT 29, 2019
      NHTSA ID:
      #10166908

      List of approved A40 engine oils for Porsche vehicles. Read More »

    • TSB #122-X2X7N-07

      Date Announced:
      JUN 25, 2019
      NHTSA ID:
      #10162221

      Notice to dealers that coolants will be moved out of the special tool cabinet in the dealer service department in order to make room for new special tools. Read More »

    ENGINE AND ENGINE COOLING:ENGINE

    ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION

    • TSB #No. 16-23

      Date Announced:
      SEP 05, 2023
      NHTSA ID:
      #10243585

      Manufacturers certificate for an overview of approved Porsche C20 engine oils. Read More »

    • TSB #No. 17-23

      Date Announced:
      SEP 05, 2023
      NHTSA ID:
      #10243586

      Manufacturers certificate for an overview of approved Porsche C30 engine oils. Read More »

    • TSB #No. 18-23

      Date Announced:
      SEP 05, 2023
      NHTSA ID:
      #10243587

      Manufacturers certificate for an overview of approved Porsche C40 engine oils. Read More »

    • TSB #No. 19-23

      Date Announced:
      SEP 05, 2023
      NHTSA ID:
      #10243588

      Manufacturers certificate for an overview of approved Porsche A40 engine oils. Read More »

    ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PUMP

    • TSB #No. D647

      Date Announced:
      AUG 25, 2023
      NHTSA ID:
      #10242132

      Parts information on parts withdrawal for the oil pump Read More »

    ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

    • TSB #2634

      Date Announced:
      SEP 10, 1998
      NHTSA ID:
      #609853

      INSTALLATION OF CHROME PLATED TAILPIPES. Read More »

    FUEL SYSTEM, GASOLINE

    • TSB #No. D615

      Date Announced:
      SEP 19, 2022
      NHTSA ID:
      #10222527

      Parts information for parts withdrawal involving the fuel filler flap 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 »

    POWER TRAIN

    • TSB #No. 2404

      Date Announced:
      MAR 15, 2024
      NHTSA ID:
      #10252578

      Special tools and equipment information for the Boxster, Cayman, 911, and Panamera Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION

    • TSB #3735

      Date Announced:
      SEP 10, 1998
      NHTSA ID:
      #609898

      THE REPLACEMENT OF TIPTRONIC TRANSMISSION.YD Read More »

    ELECTRICAL SYSTEM

    • TSB #No. 2314

      Date Announced:
      SEP 06, 2023
      NHTSA ID:
      #10243597

      Special tools and equipment information for all Porsche models. Diagnostic equipment standards. Read More »

    • TSB #No. 2313

      Date Announced:
      SEP 01, 2023
      NHTSA ID:
      #10243573

      Special tools and equipment information for the Pico Oscilloscope Extended Functionality Read More »

    • TSB #No. 2234

      Date Announced:
      DEC 08, 2022
      NHTSA ID:
      #10229617

      Instructions on advanced technical information for improper odometer and speedometer function Read More »

    • TSB #No. 56-20

      Date Announced:
      OCT 11, 2021
      NHTSA ID:
      #10202984

      Instructions on the Porsche Classic Communication Management Plus - PCCM Plus Read More »

    • TSB #PIWIS2101x

      Date Announced:
      MAY 10, 2021
      NHTSA ID:
      #10194761

      Information on Porsche PIWIS Tester III Online Update 40.200.000, .010, .015 & .016. Read More »

    • TSB #No. 52-21

      Date Announced:
      APR 19, 2021
      NHTSA ID:
      #10191742

      Information on how to deal with a potential cyber security breach. Read More »

    • TSB #PIWIS2001af

      Date Announced:
      SEP 14, 2020
      NHTSA ID:
      #10180508

      Information on PIWIS Tester III Online Update 39.700.030 Read More »

    • TSB #PIWIS2001ad

      Date Announced:
      SEP 08, 2020
      NHTSA ID:
      #10180495

      Information on PIWIS Tester III Online Update 39.700.020 Read More »

    • TSB #PIWIS2001ac

      Date Announced:
      SEP 01, 2020
      NHTSA ID:
      #10180482

      Information on PIWIS Tester III Online Update 39.700.000, .010 & .012 Read More »

    • TSB #No. D4a

      Date Announced:
      JUN 03, 2020
      NHTSA ID:
      #10176897

      Document showing the evolution of Porsche Vehicles since 1948. Read More »

    • TSB #122-V4J2F-03

      Date Announced:
      FEB 28, 2020
      NHTSA ID:
      #10172059

      Bulletin outlining PIWIS tester update 39.200.000, .010, .015, .016, & .017 Read More »

    • TSB #122-H6D8D-03

      Date Announced:
      FEB 05, 2020
      NHTSA ID:
      #10172095

      Bulletin outlining new PIWIS tester update 39.100.030 & .035 Read More »

    • TSB #122-S2J9B-01

      Date Announced:
      DEC 20, 2019
      NHTSA ID:
      #10169761

      Information about new PIWIS Tester update 39.050.012 Read More »

    • TSB #122-A9R3U-01

      Date Announced:
      DEC 20, 2019
      NHTSA ID:
      #10169762

      Information about new PIWIS Tester update 39.050.010 Read More »

    • TSB #122-M6J2U-01

      Date Announced:
      DEC 12, 2019
      NHTSA ID:
      #10169755

      Information about PIWIS Tester update 39.000.020 Read More »

    • TSB #122-S3R9Q-11

      Date Announced:
      OCT 24, 2019
      NHTSA ID:
      #10166923

      New PIWIS Tester update 38.800.030 Read More »

    • TSB #122-H6S4J-11

      Date Announced:
      OCT 22, 2019
      NHTSA ID:
      #10166920

      New PIWIS Tester update 38.800.020 Read More »

    • TSB #122-D4N9X-11

      Date Announced:
      OCT 14, 2019
      NHTSA ID:
      #10166915

      New PIWIS tester updates 38.800.000 &.010 Read More »

    • TSB #122-Z3C2E-10

      Date Announced:
      SEP 18, 2019
      NHTSA ID:
      #10165939

      Announcement of new Tech Live look, which will put technicians into live chats with technical support if they should have an urgent issue Read More »

    • TSB #122-L8R6J-10

      Date Announced:
      SEP 06, 2019
      NHTSA ID:
      #10165938

      Bulletin highlighting new updates 38.750, 38.750.000 for the Porsche PIWIS Tester 3 Read More »

    • TSB #122-Z6Y7L-09

      Date Announced:
      AUG 15, 2019
      NHTSA ID:
      #10165167

      Bulletin outlining PIWIS Tester updates 38.600.030 & 035. Read More »

    • TSB #122-E4R8U-09

      Date Announced:
      AUG 07, 2019
      NHTSA ID:
      #10165166

      Bulletin outlining PIWIS Tester updates 38.600.020. Read More »

    • TSB #122-B3Y6H-09

      Date Announced:
      AUG 05, 2019
      NHTSA ID:
      #10165165

      Bulletin outlining PIWIS Tester updates 38.600.000, .010, & .015. Read More »

    ELECTRICAL SYSTEM:WIRING

    • TSB #No. 56-20

      Date Announced:
      AUG 31, 2020
      NHTSA ID:
      #10179274

      Information on Classic Radio options for the 996 and 986 models. Read More »

    ELECTRICAL SYSTEM:IGNITION

    • TSB #2870

      Date Announced:
      JAN 01, 1998
      NHTSA ID:
      #603128

      TECHNICAL INFORMATION REGARDING NEW SPARK PLUGS. *YC Read More »

    ELECTRICAL SYSTEM:SOFTWARE

    EXTERIOR LIGHTING:HEADLIGHTS

    • TSB #599

      Date Announced:
      NOV 11, 2002
      NHTSA ID:
      #10000532

      PORSCHE LITRONIC HEADLIGHT RETROFIT KIT. *TT 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 »

    STRUCTURE

    • TSB #No. 1820.1

      Date Announced:
      JAN 27, 2021
      NHTSA ID:
      #10186489

      Special tools information on a measuring and alignment system. Read More »

    STRUCTURE:BODY

    • TSB #0913

      Date Announced:
      SEP 10, 1998
      NHTSA ID:
      #609788

      ASSEMBLING THE HARDTOP AND WHEEL STORAGE SYSTEM AND WALL MOUNTED HOLDER. YD Read More »

    TIRES

    • TSB #No. 64-20

      Date Announced:
      JUL 30, 2021
      NHTSA ID:
      #10199871

      List of approved wheels, tires, and spacers for the 996 generation 911. Read More »

    WHEELS

    • TSB #No. 64-20

      Date Announced:
      JUL 30, 2021
      NHTSA ID:
      #10199871

      List of approved wheels, tires, and spacers for the 996 generation 911. Read More »

    • TSB #122-S7K8Z-02

      Date Announced:
      JAN 30, 2020
      NHTSA ID:
      #10170996

      List of approved A40 engine oils for all Porsche vehicles since 1984. Read More »

    • TSB #122-T6A9F-02

      Date Announced:
      JAN 07, 2020
      NHTSA ID:
      #10170983

      Parts withdrawal for various parts that were used in Recall and workshop campaigns. Read More »

    SEATS

    • TSB #122-T6A9F-02

      Date Announced:
      JAN 07, 2020
      NHTSA ID:
      #10170983

      Parts withdrawal for various parts that were used in Recall and workshop campaigns. Read More »

    BACK OVER PREVENTION:SOFTWARE

    COMMUNICATION

    • TSB #No. D618.1

      Date Announced:
      NOV 10, 2022
      NHTSA ID:
      #10227334

      Parts information for parts withdrawal involving the gateway Read More »

    EQUIPMENT

    • TSB #No. 2404

      Date Announced:
      MAR 15, 2024
      NHTSA ID:
      #10252578

      Special tools and equipment information for the Boxster, Cayman, 911, and Panamera Read More »

    • TSB #PIWIS2302s

      Date Announced:
      NOV 17, 2023
      NHTSA ID:
      #10246417

      Information for PIWIS tester update 42.300.050 & .052 Read More »

    • TSB #PIWIS2302r

      Date Announced:
      NOV 10, 2023
      NHTSA ID:
      #10246374

      Information for PIWIS tester update 42.300.040 & .041 Read More »

    • TSB #PIWIS2302q

      Date Announced:
      NOV 07, 2023
      NHTSA ID:
      #10246372

      Information for PIWIS tester update 42.300.035 Read More »

    • TSB #PIWIS2302p

      Date Announced:
      NOV 03, 2023
      NHTSA ID:
      #10246369

      Information for PIWIS tester update 42.300.030 - .032 Read More »

    • TSB #No. D654

      Date Announced:
      NOV 02, 2023
      NHTSA ID:
      #10246366

      Parts information for parts withdrawal involving the glass roof - 9J0877069EY and 9J0877069DY Read More »

    • TSB #No. D5

      Date Announced:
      AUG 29, 2023
      NHTSA ID:
      #10242140

      Parts information for parts withdrawal on the locks made to original key code Read More »

    • TSB #PIWIS2301as

      Date Announced:
      JUL 25, 2023
      NHTSA ID:
      #10240414

      Information for PIWIS tester update 42.100.000, .010 & .011 Read More »

    • TSB #PIWIS2301ap

      Date Announced:
      JUL 07, 2023
      NHTSA ID:
      #10240374

      Information for PIWIS tester update 42.000.040 Read More »

    • TSB #PIWIS2301ao

      Date Announced:
      JUL 04, 2023
      NHTSA ID:
      #10240352

      Information for PIWIS tester update 42.000.035 Read More »

    • TSB #No. 2311

      Date Announced:
      JUN 22, 2023
      NHTSA ID:
      #10238776

      Special tools information on an upgrade to the pushers for the VAS5237 Read More »

    • TSB #No. D4a

      Date Announced:
      MAR 16, 2023
      NHTSA ID:
      #10233920

      Product knowledge for the Porsche evolution from 1948-2023. Read More »

    • TSB #PIWIS2301k

      Date Announced:
      FEB 27, 2023
      NHTSA ID:
      #10232442

      Information for PIWIS tester update 41.750.045 & .046 Read More »

    • TSB #PIWIS2202b

      Date Announced:
      NOV 18, 2022
      NHTSA ID:
      #10227379

      Information for PIWIS tester update 41.500.020 & .022 Read More »

    • TSB #No. 2221

      Date Announced:
      NOV 11, 2022
      NHTSA ID:
      #10227337

      Special tools information for the 9282 supersedes to the PNA9282NAR. Read More »

    • TSB #PIWIS2201au

      Date Announced:
      SEP 30, 2022
      NHTSA ID:
      #10222550

      Information for PIWIS tester update 41.400.000 & .010. Read More »

    • TSB #PIWIS2201at

      Date Announced:
      SEP 26, 2022
      NHTSA ID:
      #10222545

      Information for PIWIS tester update #41.375.050 Read More »

    • TSB #PIWIS2201as

      Date Announced:
      SEP 22, 2022
      NHTSA ID:
      #10222533

      Information for PIWIS tester update #41.375.045. Read More »

    • TSB #No. D615

      Date Announced:
      SEP 19, 2022
      NHTSA ID:
      #10222527

      Parts information for parts withdrawal involving the fuel filler flap Read More »

    • TSB #PIWIS2201ar

      Date Announced:
      SEP 16, 2022
      NHTSA ID:
      #10222515

      Information for PIWIS tester update #41.375.040 Read More »

    • TSB #PIWIS2201an

      Date Announced:
      AUG 26, 2022
      NHTSA ID:
      #10219459

      Information for PIWIS tester update #41.300.000, .010 & .012 Read More »

    • TSB #No. 2002.1

      Date Announced:
      AUG 19, 2022
      NHTSA ID:
      #10219403

      Special tools information for new blitz table replacement castors. Read More »

    • TSB #No. 2214

      Date Announced:
      JUL 27, 2022
      NHTSA ID:
      #10217266

      Special tools and equipment for the VAG 1561 storage kit in foam with blades Read More »

    • TSB #No. 22100

      Date Announced:
      JUL 07, 2022
      NHTSA ID:
      #10217171

      Special tools information for VAS 5161A tool kit for valve cotter R&I and cylinder head repair Read More »

    • TSB #No. 2116

      Date Announced:
      OCT 26, 2021
      NHTSA ID:
      #10203103

      Special tools information for a new contact surface cleaning set. Read More »

    • TSB #No. 61-21

      Date Announced:
      AUG 31, 2021
      NHTSA ID:
      #10200773

      List of approved engine oils for all Porsche models using C40 oil. Read More »

    • TSB #No. 2112

      Date Announced:
      AUG 12, 2021
      NHTSA ID:
      #10200879

      Special tools information on new Redline Dual Purpose Diagnostic Leak Locator. Read More »

    • TSB #PIWIS2101ac

      Date Announced:
      JUN 25, 2021
      NHTSA ID:
      #10198977

      Information on new PIWIS Tester update #40.300.020. Read More »

    • TSB #PIWIS2101ab

      Date Announced:
      JUN 18, 2021
      NHTSA ID:
      #10198957

      Information on PIWIS tester update #40.300.000 & .010. Read More »

    • TSB #PIWIS2101aa

      Date Announced:
      JUN 11, 2021
      NHTSA ID:
      #10198930

      Information on new PIWIS Tester update #40.250.040 Read More »

    • TSB #No. D13.2

      Date Announced:
      JUN 02, 2021
      NHTSA ID:
      #10198802

      Information on new PIWIS Tester program for independent repair facilities. Read More »

    • TSB #PIWIS2101z

      Date Announced:
      JUN 01, 2021
      NHTSA ID:
      #10198792

      Information on Porsche PIWIS Tester update #40.250.030 & .035. Read More »

    • TSB #PIWIS2101y

      Date Announced:
      MAY 21, 2021
      NHTSA ID:
      #10194795

      Information on Porsche PIWIS Tester III Online Update 40.200.020. Read More »

    • TSB #No. 13-21

      Date Announced:
      MAR 26, 2021
      NHTSA ID:
      #10189886

      List of approved C20 style engine oils for classic and new Porsche models since 1984. Read More »

    • TSB #PIWIS2102j

      Date Announced:
      MAR 05, 2021
      NHTSA ID:
      #10189696

      Information on PIWIS Tester update 40.000.020 & .022. Read More »

    • TSB #No. 54-20

      Date Announced:
      DEC 03, 2020
      NHTSA ID:
      #10185093

      List of approved A40 style engine oils for new and classic Porsche models. Read More »

    • TSB #PIWIS2001v

      Date Announced:
      JUN 25, 2020
      NHTSA ID:
      #10176881

      Information on new PIWIS tester update 39.500.020 and .025. Read More »

    • TSB #No. D4a

      Date Announced:
      JUN 03, 2020
      NHTSA ID:
      #10176897

      Document showing the evolution of Porsche Vehicles since 1948. Read More »

    • TSB #No. 16-20

      Date Announced:
      MAY 14, 2020
      NHTSA ID:
      #10175902

      List of approved A40 engine oils for all applicable vehicles as of 1984. Read More »

    • TSB #122-J4L4X-03

      Date Announced:
      FEB 27, 2020
      NHTSA ID:
      #10172096

      Bulletin outlining new blitz table replacement castors due to a high rate of failure reported by dealers. Read More »

    • TSB #122-F5T6X-01

      Date Announced:
      DEC 20, 2019
      NHTSA ID:
      #10169751

      Instructions for manually setting the date and time on older model vehicles with GPS and PCM 2.1 or older. Read More »

    • TSB #122-Y9Z9P-01

      Date Announced:
      DEC 16, 2019
      NHTSA ID:
      #10169758

      Information about new PIWIS Tester updates 39.000.022 and 39.050.000 Read More »

    • TSB #122-L7Q9T-01

      Date Announced:
      DEC 13, 2019
      NHTSA ID:
      #10169772

      Updated bulletin with the full list of Porsche model type designations. Read More »

    • TSB #122-H4F7Z-01

      Date Announced:
      DEC 13, 2019
      NHTSA ID:
      #10169773

      Updated worksheet for Chassis and VIN numbering system. Updated to include 2020 Models including the Taycan. Read More »

    • TSB #122-H6M8Z-01

      Date Announced:
      DEC 13, 2019
      NHTSA ID:
      #10169776

      Porsche Intranet posting outlining the Warranty Credit stop that takes place at the end of every calendar year. Read More »

    • TSB #122-A7G3D-12

      Date Announced:
      NOV 22, 2019
      NHTSA ID:
      #10168693

      List of valid Advanced Technical Information bulletins (ATIs) as of 11/22/2019 Read More »

    • TSB #122-T4D2V-11

      Date Announced:
      OCT 31, 2019
      NHTSA ID:
      #10166948

      Parts withdrawal for sealing grease used for sports cars. Read More »

    • TSB #122-S6Q2R-06

      Date Announced:
      MAY 30, 2018
      NHTSA ID:
      #10188291

      Resubmitting at request of Mr. Bernard Hardgrave. Advanced technical information on brake fluid for all Porsche vehicles. Read More »

    • TSB #122-N7T9K-05

      Date Announced:
      APR 17, 2018
      NHTSA ID:
      #10138295

      Subject: Replacing the coil spring on the front axle during repairs Information: Coil spring for the respective chassis no longer available. Read More »

    • TSB #ATIALL41605

      Date Announced:
      MAR 24, 2016
      NHTSA ID:
      #10198525

      Understanding and addressing brake squeal complaints. Read More »

    EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES

    • TSB #No. D5

      Date Announced:
      AUG 29, 2023
      NHTSA ID:
      #10242140

      Parts information for parts withdrawal on the locks made to original key code Read More »

    EQUIPMENT:ELECTRICAL:INFOTAINMENT

    • TSB #No. 56-20

      Date Announced:
      AUG 31, 2020
      NHTSA ID:
      #10179274

      Information on Classic Radio options for the 996 and 986 models. Read More »

    EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE

    EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

    • TSB #No. 35-23

      Date Announced:
      NOV 14, 2023
      NHTSA ID:
      #10246387

      Instructions on manufactures certificate for approved Porsche A40 engine oils Read More »

    • TSB #No. 32-23

      Date Announced:
      NOV 14, 2023
      NHTSA ID:
      #10246384

      Instructions on manufacturers certificate for approved C20 engine oils Read More »

    • TSB #No. 33-23

      Date Announced:
      NOV 14, 2023
      NHTSA ID:
      #10246385

      Instructions on manufactures certificate for approved Porsche C30 engine oils Read More »

    • TSB #PIWIS2302h

      Date Announced:
      OCT 05, 2023
      NHTSA ID:
      #10244982

      Special tools and equipment information on PIWIS tester update 42.250.050 Read More »

    • TSB #PIWIS2302g

      Date Announced:
      SEP 29, 2023
      NHTSA ID:
      #10243631

      Information on PIWIS tester update 42.250.045 Read More »

    • TSB #PIWIS2302f

      Date Announced:
      SEP 25, 2023
      NHTSA ID:
      #10243630

      Information on PIWIS tester update 42.250.042 Read More »

    • TSB #PIWIS2302e

      Date Announced:
      SEP 22, 2023
      NHTSA ID:
      #10243625

      Information PIWIS tester update 42.250.040 Read More »

    • TSB #PIWIS2302d

      Date Announced:
      SEP 19, 2023
      NHTSA ID:
      #10243617

      Information on PIWIS tester update 42.250.032 Read More »

    • TSB #PIWIS2302C

      Date Announced:
      SEP 14, 2023
      NHTSA ID:
      #10243616

      Information on PIWIS tester update 42.250.030 Read More »

    • TSB #PIWIS2302b

      Date Announced:
      SEP 12, 2023
      NHTSA ID:
      #10243615

      Information on PIWIS tester update 42.200.025 Read More »

    • TSB #PIWIS2302a

      Date Announced:
      SEP 08, 2023
      NHTSA ID:
      #10243598

      Information on PIWIS tester update 42.200.020 & .022 Read More »

    • TSB #PIWIS2301az

      Date Announced:
      SEP 05, 2023
      NHTSA ID:
      #10243576

      Information on PIWIS tester update 42.200.000 a?? 42.200.012 Read More »

    • TSB #No. 17D4a

      Date Announced:
      DEC 06, 2022
      NHTSA ID:
      #10229611

      The following illustrations are based on the four poster set "Evolution Porsche 1948-2006". Read More »

    • TSB #No. D4a

      Date Announced:
      MAR 30, 2021
      NHTSA ID:
      #10189921

      Historical information on Porsche product evolution. Read More »

    • TSB #Charging lockup

      Date Announced:
      JUN 19, 2020
      NHTSA ID:
      #10176905

      Info on a new customer tool for looking up campaigns and recalls on their vehicle. Read More »

    • TSB #No. 19-20

      Date Announced:
      JUN 15, 2020
      NHTSA ID:
      #10176847

      List of approved engine oils for classic vehicles. Read More »

    • TSB #ATIALL1601

      Date Announced:
      APR 22, 2016
      NHTSA ID:
      #10198523

      1997 to Present - Vehicle Analysis Log Types - In an effort to prode accurate information regarding the state of the vehicle at the time fof VAL creation, a "log type" drop down menu was added at the end of the VAL creation menu. Read More »

    • TSB #798

      Date Announced:
      JUL 23, 1998
      NHTSA ID:
      #602295

      CONCERNS REGARDING THE ADDITIONS / CORRECTIONS TO THE OWNER'S MANUAL. *YC Read More »

    EQUIPMENT ADAPTIVE/MOBILITY

    • TSB #No. 2303

      Date Announced:
      FEB 14, 2023
      NHTSA ID:
      #10232416

      Special tools information for the pneumatic cartridge gun. Read More »

    • TSB #No. 1758.4

      Date Announced:
      NOV 30, 2022
      NHTSA ID:
      #10227393

      Special tools information for the logo templates and exchangeable inserts. Read More »

    • TSB #No. 1804.1

      Date Announced:
      AUG 30, 2022
      NHTSA ID:
      #10219463

      Instructions on advanced technical information for the lubricant for the sunroof/sliding roof. Read More »

    • TSB #122-F5T6X-01

      Date Announced:
      DEC 20, 2019
      NHTSA ID:
      #10169751

      Instructions for manually setting the date and time on older model vehicles with GPS and PCM 2.1 or older. Read More »

    EQUIPMENT:APPLIANCE:AIR CONDITIONER

    • TSB #122-V3B6B-07

      Date Announced:
      JUN 19, 2019
      NHTSA ID:
      #10162219

      Announcement of a 6 month warranty extension on VAS 581005P R1234yf Service Units for air conditioning. Read More »

    • TSB #122-W9D2T-07

      Date Announced:
      JUN 10, 2019
      NHTSA ID:
      #10162214

      Instructions for using VAS 581005P in order to chech and service R1234yf Air Conditioning Unit. Read More »

    UNKNOWN OR OTHER

    • TSB #PIWIS2401j

      Date Announced:
      FEB 09, 2024
      NHTSA ID:
      #10251154

      Information for PIWIS tester update 42.500.020 Read More »

    • TSB #No. D8

      Date Announced:
      FEB 02, 2024
      NHTSA ID:
      #10251139

      Product knowledge for the chassis and VIN numbering systems Read More »

    • TSB #PIWIS2401f

      Date Announced:
      FEB 01, 2024
      NHTSA ID:
      #10251135

      Information for PIWIS tester update 42.500.008 Read More »

    • TSB #PIWIS2401e

      Date Announced:
      JAN 29, 2024
      NHTSA ID:
      #10249916

      Information on PIWIS tester update 42.500.005 Read More »

    • TSB #No. D647

      Date Announced:
      AUG 25, 2023
      NHTSA ID:
      #10242132

      Parts information on parts withdrawal for the oil pump Read More »

    • TSB #No. D618.1

      Date Announced:
      NOV 10, 2022
      NHTSA ID:
      #10227334

      Parts information for parts withdrawal involving the gateway Read More »

    • 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 »

    • TSB #9160

      Date Announced:
      JAN 01, 2001
      NHTSA ID:
      #621480

      TECHNICAL PROCEDURES FOR INSTALLING THE RADIO FACEPLATE. *TT Read More »