TorqFix

Connecting fault reader — VW

Connecting fault reader on VW: 10 steps. What to remove, in what order, and what to check after.

Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.

10 steps

🧭 Before you start

Fits: VW Sharan I / SEAT Alhambra (7M)

  • Special tools named: V.A.G 1551

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  • Instead of fault readerV.A.G 1551, vehicle system testerV.A.G 1552 can also be used, though no print-out is possible in this case.

📋 Procedure

  1. Open ashtray (3).
  2. Push the flap (1) in direction of arrow slightly on both sides. The ashtray insert (2) jumps out a little and can be removed.
  3. Disengage the ashtray housing and pull out the opened ashtray housing from the centre console.
  4. Insert the connector of the diagnosis leadVAS 5051/1 or diagnosis leadVAS 5051/3 into the diagnosis connection.
  5. On the display, press the button for "“Vehicle self-diagnosis”".
VW? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. On the display, press the desired button.
  2. On the display, press the button for the desired function. [Note: Instead of fault readerV.A.G 1551, vehicle system testerV.A.G 1552 can also be used, though no print-out is possible in this case.]
  3. Connect the fault readerV.A.G 1551 to the diagnosis cableV.A.G 1551/3. [Note: If nothing is shown in the display, check voltage supply of V.A.G 1551 using the current flow diagram ”Current flow diagrams, Electrical fault finding and Fitting locations”Additional operating information can be printed out depending on the programme by pressing the HELP key on the V.A.G 1551.The → key is used for advancing the programme sequence.The PRINT key is used for switching on the printer (warning lamp in key lights up).]
  4. Operate the fault reader while taking what is shown on the display into consideration:
  5. Press button 1 for "“Rapid data transfer”".

Who makes these pages, and how

TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.

The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.

Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.

Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com

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Workshop data on this page last updated 20 Sep 2026.