How to Replace timing belt on Renault Megane 3 2.0 TCe 2008-

Replacement Interval Guide

• Renault recommend:
• TCe 180: Replacement every 72,000 miles or 6 years (tensioner pulley & guide pulley must be replaced).
• Renaultsport 250: Replacement every 75,000 miles or 6 years (tensioner pulley & guide pulley must be replaced).
• The previous use and service history of the vehicle must always be taken into account.

Check For Engine Damage

CAUTION: This engine has been identified as an INTERFERENCE engine in which the possibility of valve-to-piston damage in the event of a timing belt failure is MOST LIKELY to occur. A compression check of all cylinders should be performed before removing the cylinder head(s).

Repair Times – hrs

Remove & install

5,90

Special Tools

• Camshaft setting bar – Renault No.Mot.1496.
• Camshaft sprockets locking tool – Renault No.Mot.1801 or Mot.1509-01.
• Crankshaft timing pin – Renault No.Mot.1054.
• Exhaust camshaft blanking plug tool – Renault No.Mot.1488.
• Inlet camshaft blanking plug tool – Renault No.Mot.1487.

Special Precautions

• Disconnect battery earth lead.
• DO NOT turn crankshaft or camshaft when timing belt removed.
• Remove spark plugs to ease turning engine.
• Turn engine in normal direction of rotation (unless otherwise stated).
• DO NOT turn engine via camshaft or other sprockets.
• Observe all tightening torques.

Removal

NOTE: Engines with variable valve timing: Mark camshaft sprockets and camshaft adjusters with chalk or paint prior to timing belt removal to assist alignment on installation.

1. Raise and support front of vehicle.
2. Remove:
   • Engine top cover.
   • Engine undershield.
   • RH front wheel.
   • RH wheel arch liner.
   • RH lower support bracket.
   • Engine lower tie-bar.
   • Auxiliary drive belt.

     NOTE: DO NOT refit used belt. Replace auxiliary drive belt tensioner pulley and guide pulley.

3. Remove flywheel cover.
4. Lock flywheel with large screwdriver. Slacken crankshaft pulley bolt [1] .
5. Remove:
   • Crankshaft pulley bolt [1] .
   • Crankshaft pulley [2] .
   • Water pump. DO NOT disconnect hoses.
   • Exhaust downpipe.
   • Turbocharger upper air hose.
   • RH engine lifting eye.
   • Turbocharger (TC) boost pressure vacuum hose.
6. Disconnect fuel vapour hose(s) from evaporative emission (EVAP) canister.
7. Remove:
   • Blanking plug from cylinder block [3] .
   • Blanking plugs from rear of camshafts.
8. Support engine.
9. Remove:
   • RH engine mounting and bracket.
   • Timing belt upper cover [4] .
   • Timing belt lower cover [5] .
10. Fit:
    • Crankshaft pulley [2] .
    • Crankshaft pulley bolt [1] .
11. Turn crankshaft clockwise until grooves in rear of camshafts are just before horizontally aligned position.

    NOTE: Grooves located below cylinder head upper face.

12. Insert crankshaft timing pin in cylinder block [6] . Tool No.Mot.1054.
13. Turn crankshaft slightly clockwise. Ensure timing pin located correctly in crankshaft [7] .
14. Ensure grooves in rear of camshafts horizontally aligned [8] .
15. Fit setting bar to rear of camshafts [9] . Tool No.Mot.1496.
16. Remove:
    • Crankshaft pulley bolt [1] .
    • Crankshaft pulley [2] .
17. Slacken tensioner pulley nut [10] .
18. Remove:
    • Tensioner pulley nut [10] .
    • Tensioner pulley [11] .
    • Guide pulley bolt [12] .
    • Guide pulley.
    • Timing belt.

    NOTE: Timing belt must always be renewed once it has been removed.

Installation

NOTE: Tensioner pulley and guide pulley MUST be replaced.

1. Ensure timing pin located correctly in crankshaft [7] .

   NOTE: Ensure timing pin not inserted into crankshaft web balance hole.

2. Ensure grooves in rear of camshafts horizontally aligned [8] .
3. Ensure setting bar fitted correctly [9] .
4. Remove crankshaft sprocket. Degrease sprocket. Degrease end of crankshaft.
5. Fit crankshaft sprocket.
6. Fit camshaft sprockets locking tool [13] . Tool No.Mot.1801 or Mot.1509-01.
7. Tighten camshaft sprockets locking tool nuts [14] . Tightening torque: 80 Nm.
8. Remove:
   • Blanking plug from inlet camshaft sprocket.
   • Exhaust camshaft sprocket nut [15] .
   • Inlet camshaft sprocket bolt [16] .

     NOTE: Replace camshaft stud if loosened when removing nut.

   • Locking tool [13] .
   • Camshaft sprockets.
9. Degrease ends of camshafts and camshaft sprockets.
10. Install camshaft sprockets.
11. Finger tighten exhaust camshaft sprocket nut [15] .
12. Finger tighten inlet camshaft sprocket bolt [16] .
13. Fit new tensioner pulley [11] .

    NOTE: Ensure lug on rear of tensioner pulley located in groove in cylinder head.

14. Tighten tensioner pulley nut finger tight [10] .
15. Fit:
    • Timing belt.
    • New guide pulley.
16. Tighten guide pulley bolt [12] . Tightening torque: 50 Nm.
17. Turn tensioner pulley clockwise until marks aligned [17] & [18] . Use 6 mm Allen key [19] .

    NOTE: DO NOT turn tensioner pulley anti-clockwise.

18. Tighten tensioner pulley nut [10] . Tightening torque: 32 Nm.
19. Fit camshaft sprockets locking tool [13] .
20. Tighten camshaft sprockets locking tool nuts [14] . Tightening torque: 80 Nm.
21. Tighten exhaust camshaft sprocket nut [15] . Tightening torque: 30 Nm.
22. Tighten inlet camshaft sprocket bolt [16] . Tightening torque: 30 Nm.
23. Remove:
    • Camshaft sprockets locking tool [13] .
    • Crankshaft timing pin [6] .
    • Camshaft setting bar [9] .
24. Fit:
    • Crankshaft pulley [2] .
    • Crankshaft pulley bolt [1] .
25. Turn crankshaft two turns clockwise until grooves in rear of camshafts are just before horizontally aligned position.
26. Insert crankshaft timing pin in cylinder block [6] .
27. Turn crankshaft slightly clockwise. Ensure timing pin located correctly in crankshaft [7] .

    NOTE: Ensure timing pin not inserted into crankshaft web balance hole.

28. Fit setting bar to rear of camshafts [9] .
29. Ensure tensioner pulley marks aligned [17] & [18] . If not: Repeat tensioning procedure.
30. Fit camshaft sprockets locking tool [13] .
31. Tighten camshaft sprockets locking tool nuts [14] . Tightening torque: 80 Nm.
32. Remove exhaust camshaft sprocket nut [15] .
33. Remove inlet camshaft sprocket bolt [16] .
34. Fit new exhaust camshaft sprocket nut [15] .
35. Fit new inlet camshaft sprocket bolt [16] .
36. Tighten inlet camshaft sprocket bolt [16] . Tightening torque: 90 Nm.
37. Tighten exhaust camshaft sprocket nut [15] . Tightening torque: 30 Nm.
38. Remove camshaft setting bar [9] .
39. Tighten exhaust camshaft sprocket nut [15] . Tightening torque: 86±6°.
40. Remove:
    • Crankshaft timing pin [6] .
    • Camshaft sprockets locking tool [13] .
41. Fit blanking plug [3] .
42. Lock flywheel with large screwdriver.
43. Fit timing belt lower cover [5] .
44. Fit new crankshaft pulley and bolt [1] & [2] .
45. Tighten crankshaft bolt [1] . Tightening torque: 40 Nm + 110±10°.
46. Fit new blanking plug to inlet camshaft sprocket.
47. Fit new blanking plug to rear of inlet camshaft. Use tool No.Mot.1487.
48. Fit new blanking plug to rear of exhaust camshaft. Use tool No.Mot.1488.

    NOTE: DO NOT start engine without auxiliary drive belt fitted as damage may occur to crankshaft pulley.

49. Install components in reverse order of removal.