TorqFix

Gearbox removal & installation: Peugeot 4007 W5MBB 2.4 (4B12)

Step-by-step gearbox removal & installation for the Peugeot 4007 W5MBB 2.4 (4B12): 37 steps. What to remove, in what order, and what to check after.

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

37 steps 1 engine code

🧭 Before you start

Fits: platform codes 2.4, 16V

🔧 Engine codes this applies to

4B12(SFZ)

📐 24 workshop diagrams for 4B12(SFZ)

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

4007 4B12 - W5MBB — 4B12(SFZ) · diagram 1
4007 4B12 - W5MBB — 4B12(SFZ) · diagram 2
4007 4B12 - W5MBB — 4B12(SFZ) · diagram 3
4007 4B12 - W5MBB — 4B12(SFZ) · diagram 4
4007 4B12 - W5MBB — 4B12(SFZ) · diagram 5
4007 4B12 - W5MBB — 4B12(SFZ) · diagram 6
4007 4B12 - W5MBB — 4B12(SFZ) · diagram 7
4007 4B12 - W5MBB — 4B12(SFZ) · diagram 8
+ 16 more diagrams
🔒 24 workshop diagrams for this job Ask about your Peugeot 4B12(SFZ) — free or sign up free to see the drawings

📋 Procedure

  1. Remove the front left splash guard
  2. Remove/refit the front subframe extensions
  3. Remove the front drive shafts
  4. Plug the holes
  5. Remove the propeller shaft
4B12(SFZ)? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Remove the brackets
  2. Remove the subframe
  3. Remove the transfer box
  4. Remove the bracket
  5. Remove the air filter
  6. Remove the battery
  7. Disconnect the engine control unit connector
  8. Remove the control unit
  9. Remove the brackets
  10. Remove the earth cable
  11. Disconnect the wiring loom bracket
  12. Remove the battery box support
  13. Disconnect the gear-shift cable(s)
  14. Disconnect the gear-shift mechanism from the gearbox
  15. Disconnect the coolant pipe
  16. Disconnect the electrical connectors
  17. Disconnect the hydraulic hose(s)
  18. Remove the starter motor
  19. Use a hoist to support the engine and gearbox
  20. Nuts, gearbox support:
  21. Remove the gearbox support nuts
  22. Lower the engine and gearbox
  23. Bolts:
  24. Bolts:
Workshop diagrams

Ask TorqFix about your Peugeot 4B12(SFZ) — it answers with the exact sequence for that engine and the workshop drawing for each step. First question is free after a 20-second sign-up, no card.

Ask about your Peugeot 4B12(SFZ) — free → or sign up free to see the drawings

Other PEUGEOT procedures

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.