How to Replace timing belt on Renault Megane 3 1.6 2008-

Replacement Interval Guide

• Renault recommend:
• Mégane III:
• Replacement every 72,000 miles or 6 years (tensioner pulley and guide pulley must be replaced).
• Modus/Grand Modus II:
• 2008:
• Replacement every 72,000 miles or 5 years (tensioner pulley and guide pulley must be replaced).
• 2009→:
• Replacement every 72,000 miles or 6 years (tensioner pulley and 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:
Mégane III	3,60
Modus/Grand Modus II:
RHD:	4,70
AC	-0,30
LHD:	4,30
AC	-0,20

Special Tools

• Camshaft setting bar – Nos.Mot.1496/1750.
• Camshaft blanking plug tools – Nos.Mot.1487/1488.
• Camshaft sprocket holding tool – No.Mot.799-01.
• Camshaft sprockets locking tool – No.Mot.1490-01.
• Crankshaft timing pin – No.Mot.1489.
• Modus/Grand Modus II: Flywheel locking tool – No.Mot.582-01.
• Modus/Grand Modus II: Guide pulley removal/fitting tool – No.Mot.1368.

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

WARNING: 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.
   • Throttle body assembly.
   • RH front wheel.
   • RH front wheel arch liner.
   • Engine undershield.
   • Auxiliary drive belt.

   NOTE: Auxiliary drive belt(s), tensioner pulley and guide pulley(s) MUST be replaced.

3. Modus/Grand Modus II – remove:
   • Plenum chamber cover.
   • Plenum chamber front panel.
   • Battery covers (if fitted).
   • Battery.
   • Battery tray.
   • Air intake duct.
   • Air filter assembly.
   • Starter motor.
4. Support engine.NOTE: Mark position of RH engine mounting before removal.
5. Remove:
   • RH engine mounting and bracket.
   • Engine lower tie-bar.
   • Engine lifting eye.
   • Blanking plugs from rear of camshafts. Use tool Nos.Mot.1487/1488.
   • Blanking plug from cylinder block [1] .
6. Turn crankshaft clockwise until grooves in rear of camshafts are just before horizontally aligned position.NOTE: Grooves located below cylinder head upper face.
7. Insert timing pin in cylinder block [3] . Tool No.Mot.1489.
8. Turn crankshaft slightly until crankshaft web stops against timing pin [4] .
9. Ensure grooves in rear of camshafts horizontally aligned [2] .
10. Modus/Grand Modus II: Fit flywheel locking tool [5] . Tool No.Mot.582-01.
11. Mégane III: Lock flywheel with large screwdriver.
12. Slacken crankshaft pulley bolt [6] .
13. Remove:
    • Crankshaft pulley bolt [6] .
    • Crankshaft pulley [7] .
    • Timing belt covers [8] & [9] .
    • Flywheel locking tool.

    NOTE: DO NOT allow crankshaft sprocket to fall off crankshaft.

14. Slacken tensioner pulley nut [10] .
15. Remove:
    • Tensioner pulley nut [10] .
    • Tensioner pulley [11] .
    • Guide pulley bolt [12] . Use tool No.Mot.1368.
    • Guide pulley.
    • Timing belt.NOTE: DO NOT allow crankshaft sprocket to fall off crankshaft.
16. Fit setting bar to rear of camshafts [13] . Tool Nos.Mot.1496/1750.

Installation

NOTE: Timing belt, tensioner pulley and guide pulley MUST be replaced.

1. Ensure crankshaft timing pin inserted [3] . Ensure crankshaft web against timing pin [4] .
2. Ensure grooves in camshafts aligned [2] .
3. Ensure setting bar fitted correctly [13] .
4. Remove crankshaft sprocket. Degrease sprocket. Degrease end of crankshaft. Refit crankshaft sprocket.NOTE: Crankshaft keyway at 12 o’clock position [14] .
5. Remove:
   • Exhaust camshaft sprocket nut [15] . Use tool No.Mot.799-01.NOTE: Replace camshaft stud if loosened when removing nut.
   • Exhaust camshaft sprocket [16] . Degrease sprocket. Degrease end of camshaft.
   • Inlet camshaft sprocket blanking plug [17] . Use tool No.Mot.799-01.
   • Inlet camshaft sprocket bolt [18] . Use tool No.Mot.799-01.
   • Inlet camshaft sprocket [19] . Degrease sprocket. Degrease end of camshaft.WARNING: Failure to degrease components may lead to sprockets slipping on crankshaft and camshafts, resulting in severe engine damage.
6. Fit exhaust camshaft sprocket [16] . Use new nut.
7. Fit inlet camshaft sprocket [19] . Use new bolt.
8. Lightly tighten nut and bolt of each camshaft sprocket [15] & [18] .
9. Ensure camshaft sprockets can turn freely without tilting.
10. Ensure inlet camshaft VVT unit locked.
11. Ensure Renault logo on exhaust camshaft sprocket positioned as shown [20] .
12. Ensure inlet camshaft sprocket mark at 12 o’clock position [21] .
13. Mark cylinder head with paint or chalk where indicated [22] .
14. Fit new tensioner pulley [11] .NOTE: Ensure lug on rear of tensioner pulley located in groove in water pump housing [23] .
15. Fit timing belt to camshaft sprockets. Ensure camshaft sprockets do not move.
16. Fit camshaft sprockets locking tool [24] . Tool No.Mot.1490-01.
17. Fit timing belt to tensioner pulley, crankshaft sprocket and water pump sprocket.
18. Fit new guide pulley. Tighten guide pulley bolt [12] . Tightening torque: 50 Nm. Use tool No.Mot.1368.
19. Turn tensioner pulley clockwise until movable pointer [25] aligned with notch [26] . Use 6 mm Allen key [27] .
20. Temporarily tighten tensioner pulley nut [10] . Tightening torque: 7 Nm.
21. Fit timing belt lower cover [9] .
22. Remove timing belt lower cover access panel [28] .
23. Fit new crankshaft pulley [7] .
24. Fit new crankshaft pulley bolt [6] .
25. Ensure crankshaft web against timing pin [4] .
26. Modus/Grand Modus II: Fit flywheel locking tool [5] .
27. Mégane III: Lock flywheel with large screwdriver.
28. Tighten crankshaft pulley bolt [6] . Tightening torque: 40 Nm + 145±15°.
29. Tighten exhaust camshaft sprocket nut [15] . Tightening torque: 30 Nm + 84±4°.
30. Tighten inlet camshaft sprocket bolt [18] . Tightening torque: 100 Nm.
31. Remove camshaft sprockets locking tool [24] .
32. Remove:
    • Modus/Grand Modus II: Flywheel locking tool [5] .
    • Crankshaft timing pin [3] .
    • Setting bar [13] .
33. Turn crankshaft two turns clockwise to setting position.
34. Ensure timing marks aligned [21] & [22] .
35. Insert timing pin in cylinder block [3] .
36. Ensure crankshaft web against timing pin [4] .
37. Ensure tensioner pulley pointer aligned with notch [25] & [26] . Tighten tensioner pulley nut [10] . Tightening torque: 27 Nm.
38. If not:
    • Slacken tensioner pulley nut [10] by a maximum of one turn whilst holding 6 mm Allen key [27] .
    • Turn tensioner pulley until pointer aligned with notch [25] & [26] . Use 6 mm Allen key [27] .
    • Tighten tensioner pulley nut [10] . Tightening torque: 27 Nm.
39. Ensure Renault logo on exhaust camshaft sprocket positioned as shown [20] .
40. Ensure inlet camshaft sprocket marks aligned [21] & [22] .
41. Ensure crankshaft web against timing pin [4] .
42. Ensure grooves in camshafts aligned [2] .
43. Ensure setting bar can be easily fitted [13] . If not: Repeat installation procedure.
44. Fit new inlet camshaft sprocket blanking plug [17] . Tightening torque: 15 Nm.
45. Remove:
    • Setting bar [13] .
    • Crankshaft timing pin [3] .
46. Refit blanking plug [1] . Tightening torque: 20 Nm.
47. Refit timing belt lower cover access panel [28] .
48. Fit new blanking plugs to rear of camshafts. Use tool Nos.Mot.1487/1488.
49. Install components in reverse order of removal.