TorqFix

Removing and installing alternator, 1.2 l 55 kW injection engine — VW

Removing and installing alternator, 1.2 l 55 kW injection engine on VW: 16 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.

16 steps

🧭 Before you start

Fits: platform codes 601, 602, 612, 641, 642, 643, 604, 644, 614, 603

Don't miss

  • Ensure that the spacer sleeve on the lower securing bolt is not lost when removing the alternator!

📋 Procedure

  1. Disconnect battery .
  2. Unfasten connector (1) and disconnect.
  3. Pull off protective cap (arrow).
  4. Unscrew securing nut behind that and remove battery positive cable from alternator.
  5. ⚠ Before removing, mark top and direction of rotation of poly V-belt. If the poly V-belt is installed in the wrong position or against direction of rotation, the poly V-belt will be destroyed! — Remove poly V-belt Power unit13Dismantling and assembling engine; Removing and installing poly V-belt.
VW? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Unscrew securing bolts of air conditioner compressor (arrows). [Note: When removing air conditioner compressor, watch out for centring sleeves and spacer bushes.The hoses of the air conditioner compressor can remain connected.Suspend the air conditioner compressor (3) using a piece of wire (1) at a suitable position until it is ready to be reinstalled.Ensure that the hoses (2) are not stretched or kinked.]
  2. Remove bolt (arrow).
  3. Remove bolt (2) and detach idler roller (1).
  4. Remove bolt (arrow) and detach tensioning element (1).
  5. Remove both securing bolts (arrows) of alternator. [Note: Ensure that the spacer sleeve on the lower securing bolt is not lost when removing the alternator!]
  6. Remove alternator from vehicle.
  7. ⚠ When installing previously used poly V-belts, ensure correct direction of rotation and installation position.If the poly V-belt is installed in the wrong position or against direction of rotation, the poly V-belt will be destroyed!Before installing poly V-belt, ensure that all ancillaries (alternator, air conditioner compressor) are secure.When fitting poly V-belt, make sure it is properly seated on the pulleys. — Drive threaded sleeves (A) roughly 4 mm in direction of (arrow) out of alternator housing.
  8. Insert spacer bush of lower alternator securing bolt.
  9. Tighten all threaded connections to specified torque .
  10. Connect battery .
  11. Start engine and check belt running.

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.