TorqFix

Timing chain replacement: MB eng. M111 (111.979)- chain — MERCEDES-BENZ

Timing chain replacement — MB eng. M111 (111.979)- chain on Mercedes-Benz: 87 steps, engines 111.979.

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

87 steps 1 engine code

🧭 Before you start

Fits: platform codes 214, |, 314, 414

  • Timing position: the crankshaft or camshaft is set and locked during this job

🔧 Engine codes this applies to

111.979

📐 50 workshop diagrams for 111.979

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

MB eng. M111 (111.979)- chain — 111.979 · diagram 1
MB eng. M111 (111.979)- chain — 111.979 · diagram 2
MB eng. M111 (111.979)- chain — 111.979 · diagram 3
MB eng. M111 (111.979)- chain — 111.979 · diagram 4
MB eng. M111 (111.979)- chain — 111.979 · diagram 5
MB eng. M111 (111.979)- chain — 111.979 · diagram 6
MB eng. M111 (111.979)- chain — 111.979 · diagram 7
MB eng. M111 (111.979)- chain — 111.979 · diagram 8
+ 42 more diagrams
🔒 50 workshop diagrams for this job Ask about your Mercedes-Benz 111.979 — free or sign up free to see the drawings

📋 Procedure

Preparation and removal

  1. Before disconnecting the battery cable, check the audio system security code
  2. Always use new gaskets
  3. Remove the air hose
  4. Remove the idle speed actuator
  5. Remove the flange
111.979? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Disconnect the chain
  2. Note: Avoid bending, torsion or traction
  3. Remove the automatic transmission dipstick tube
  4. All vehicles:
  5. Remove the harness clip
  6. Move the harness aside
  7. Remove the cylinder head cover
  8. Remove the spark plugs
  9. Note: Cover the alternator with a clean cloth
  10. Remove the special tool
  11. Separate the timing chain

Installation and checks

  1. Installation sequence:
  2. Lock the camshaft gearwheels
  3. Fit the chain tensioner
  4. Tighten the tensioner body
  5. Insert the compression spring and filler pin
  6. Secure the chain
  7. Turn the crankshaft to 25° ATDC for cylinder 1
  8. Check that the camshaft locking pins can be fitted
  9. Remove the special tools
  10. Pull the removed timing chain pins out of the chain separating tool
  11. Refit the cylinder head cover
  12. Renew the gasket
  13. Tighten the bolts
  14. Check the gasket position
  15. Refit the spark plugs
  16. Vehicles with automatic transmission
  17. Refit the automatic transmission dipstick tube
  18. All vehicles:
  19. Refit the spark plug cables
  20. Refit the ignition coil(s)
  21. Refit the ignition coil cover
  22. Refit the flange
  23. Refit the idle speed actuator
  24. Refit the air hose
  25. Reconnect the battery earth cable
Workshop diagrams

Ask TorqFix about your Mercedes-Benz 111.979 — 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 Mercedes-Benz 111.979 — free → or sign up free to see the drawings

Other MERCEDES-BENZ 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

The story behind TorqFix →

Workshop data on this page last updated 20 Sep 2026.