TorqFix

Timing belt replacement: MG L series 2.0 diesel (20T2N)

Step-by-step timing belt replacement for the MG L series 2.0 diesel (20T2N): 62 steps. What to remove, in what order, and what to check after.

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

62 steps 1 engine code

🧭 Before you start

Fits: platform codes 100, IDT, |, 115

  • Timing position: the crankshaft or camshaft is set and locked during this job
  • Special tools named: locking tool

🔧 Engine codes this applies to

20T2N

📐 27 workshop diagrams for 20T2N

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

L series timing — 20T2N · diagram 1
L series timing — 20T2N · diagram 2
L series timing — 20T2N · diagram 3
L series timing — 20T2N · diagram 4
L series timing — 20T2N · diagram 5
L series timing — 20T2N · diagram 6
L series timing — 20T2N · diagram 7
L series timing — 20T2N · diagram 8
+ 19 more diagrams
🔒 27 workshop diagrams for this job Ask about your MG 20T2N — free or sign up free to see the drawings

📋 Procedure

Preparation and removal

  1. Check the camshaft timing marks
  2. Check the belt(s) for cracks, fraying, wear and oil contamination
  3. Remove the special tool
  4. Note: Avoid bending, torsion or traction
  5. Remove the vibration damper (if fitted)
20T2N? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Remove the crankshaft pulley
  2. Fit the crankshaft locking tool
  3. Loosen the tensioner
  4. Fit the special tool
  5. Release the belt pressure

Installation and checks

  1. Lock the tensioner in extended position
  2. Fit the timing belt
  3. Apply tension to the timing belt
  4. Fit the timing belt lower cover
  5. Remove the locking tool
  6. Rotate the engine 2 rotations by hand
  7. Tighten the tensioner
  8. Fit the vibration damper
  9. Refit the timing belt upper cover
  10. Check the tensioner
  11. Check the free length of spring
  12. Refit the engine lower covers
  13. Refit the engine acoustic cover
  14. Reconnect the battery earth cable
Workshop diagrams

Ask TorqFix about your MG 20T2N — 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 MG 20T2N — free → or sign up free to see the drawings

Other MG 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.