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How to change water pump & timing belt kit on RENAULT Megane II Hatchback (BM, CM) – replacement guide

downloads: 29

Recommended replacement interval for the part category Water pump and timing belt kit : 70000 km

Important!

This replacement procedure can be used for:
RENAULT MEGANE II (BM0/1_, CM0/1_) 1.5 dCi (BM1F, CM1F), RENAULT MEGANE II (BM0/1_, CM0/1_) 1.5 dCi (BM02, BM13, BM2A, CM02, CM13), RENAULT MEGANE II (BM0/1_, CM0/1_) 1.5 dCi (BM0F, BM0T, BM2B, CM0F, CM0T) … View more

The steps may slightly vary depending on the car design.

This video shows the replacement procedure of a similar car part on another vehicle

Alternative products

Water pump and timing belt kit

Replacement: water pump & timing belt kit – RENAULT MEGANE II (BM0/1_, CM0/1_). Tools you might need:

                      Brake cleaner 
                    
                      Copper grease 
                    
                      Sealant
                    
                      Torque wrench
                    
                      Combination spanner #10
                    
                      Combination spanner #13
                    
                      Combination spanner #16
                    
                      HEX bit No.H6.
                    
                      Drive socket # 8 
                    
                      Drive socket # 10 
                    
                      Drive socket # 13 
                    
                      Drive socket # E14 
                    
                      Drive socket # 16 
                    
                      Drive socket # 18 
                    
                      Wheel impact socket #17
                    
                      Ratchet wrench
                    
                      Funnel
                    
                      Fluid container
                    
                      Seal scraper
                    
                      Clic-R collar pliers
                    
                      Long round nose pliers
                    
                      Clip removal tool
                    
                      Engine timing tool set
                    
                      Hydraulic transmission jack
                    
                      Fender cover
                    
                      Wheel chock

Buy tools

Replacement: water pump & timing belt kit – RENAULT MEGANE II (BM0/1_, CM0/1_). AUTODOC experts recommend:

Follow the terms, recommendations and requirements of the part operation provided by the manufacturer.
All work should be done with the engine stopped.

Replacement: water pump & timing belt kit – RENAULT MEGANE II (BM0/1_, CM0/1_). Recommended sequence of steps:

Step 1

Open the bonnet.

Step 2

Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.

Step 3

Unscrew the fasteners of the car battery terminals. Use a drive socket #10. Use a ratchet wrench.
Step 4

Remove the battery terminals.
Step 5

Unscrew the coolant reservoir cap.
Step 6

Secure the wheels with chocks.
Step 7

Loosen the wheel mounting bolts. Use wheel impact socket #17.
Step 8

Raise the front of the car and secure on supports.

Step 9

Unscrew the wheel bolts.

Replacement: water pump & timing belt kit – RENAULT MEGANE II (BM0/1_, CM0/1_). Tip:
To avoid injury, hold up the wheel when unscrewing the bolts.
Step 10

Remove the wheel.
Step 11

Remove the wheel arch cover. Use a clip removal tool.
Step 12

Unscrew the fuel filter bracket fixing bolts. Use a drive socket #13. Use a ratchet wrench.
Step 13

Remove the fuel filter fastening bracket.
Step 14

Unscrew the fuel filter bracket fixing bolts. Use a combination spanner #10.
Step 15

Remove the fuel filter fastening bracket.
Step 16

Pull aside the V-ribbed belt tensioner pulley. Use a combination spanner #16.
Step 17

Remove the V-ribbed belt.
Step 18

Return the tensioner pulley to its initial position. Use a combination spanner #16.

Step 19

Support the subframe. Use a hydraulic transmission jack.
Step 20

Clean the subframe fasteners. Use a wire brush. Use WD-40 spray.
Step 21

Unscrew the subframe reinforcement bracket fasteners. Use a drive socket #13. Use a ratchet wrench.
Step 22

Unscrew the subframe fastening. Use a drive socket #18. Use a ratchet wrench.
Step 23

Remove the support from under the subframe.

AUTODOC recommends:
Replacement: water pump & timing belt kit – RENAULT MEGANE II (BM0/1_, CM0/1_). Lower the transmission jack smoothly, without jerks, to avoid damaging components and mechanisms.
Step 24

Unscrew the TDC timing pin plug. Use a drive socket #E14. Use a ratchet wrench.
Step 25

Install the crankshaft gear locking tool according to the factory marks. Use an engine timing tool set.
Step 26

Unscrew the crankshaft pulley fastener. Use a drive socket #18. Use a ratchet wrench.
Step 27

Remove the crankshaft pulley.
Step 28

Screw in the crankshaft pulley fastener. Use a drive socket #18. Use a ratchet wrench.

Step 29

Remove the crankshaft gear locking tool.
Step 30

Remove the lower timing cover.
Step 31

Support the engine in the oil pan area. Use a hydraulic transmission jack.
Step 32

Unscrew the upper fastener of the engine mount. Use a drive socket #16. Use a ratchet wrench.
Step 33

Remove the upper part of the engine mount.
Step 34

Remove the upper timing cover.
Step 35

Unscrew the engine mount fasteners. Use a combination spanner #10. Use a drive socket #10. Use a ratchet wrench.
Step 36

Remove the engine mount.
Step 37

Turn the crankshaft gear. Use a drive socket #18. Use a ratchet wrench.

Please note!
The piston should be at its top dead centre (TDC).
Step 38

Install the crankshaft gear locking tool according to the factory marks. Use an engine timing tool set.
Step 39

Make a mark on the crankshaft gear.
Step 40

Install the camshaft gear locking tool according to the factory marks. Use an engine timing tool set.
Step 41

Make a mark on the camshaft gear.
Step 42

Loosen the fastener of the timing belt tensioner pulley. Use a combination spanner #13. Use HEX No.H6.
Step 43

Pull aside the timing belt tensioner pulley.
Step 44

Remove the timing belt.
Step 45

Return the tensioner pulley to its initial position.

Step 46

Remove the timing belt tensioner pulley.
Step 47

Unscrew the fasteners of the middle timing cover. Use a drive socket #8. Use a ratchet wrench.
Step 48

Unscrew the fastener of the serpentine belt tensioner pulley. Use a combination spanner #13.
Step 49

Remove the serpentine belt tensioner pulley.
Step 50

Remove the middle timing cover.
Step 51

Detach the clamp of the lower coolant pipe. Use long round nose pliers.
Step 52

Prepare a container for fluids.
Step 53

Detach the lower coolant pipe.
Step 54

Drain the coolant from the engine.

Replacement: water pump & timing belt kit – RENAULT MEGANE II (BM0/1_, CM0/1_). Professionals recommend:
Caution! The coolant can be very hot.Wear gloves to prevent contact with hot liquid.All work should be done with the engine stopped.
Step 55

Attach the lower coolant pipe.
Step 56

Attach the clamp of the lower coolant pipe. Use clic-R collar pliers.
Step 57

Unscrew the water pump fasteners. Use a drive socket #8. Use a ratchet wrench.
Step 58

Remove the water pump.

Replacement: water pump & timing belt kit – RENAULT MEGANE II (BM0/1_, CM0/1_). Tip:
Caution! Coolant may come out from the water pump channels and body.
Step 59

Clean the water pump mounting seat. Use a seal scraper.
Step 60

Treat the fastening bolts. Use a sealant.
Step 61

Install the water pump gasket.
Step 62

Install the new water pump.
Step 63

Tighten the water pump fasteners. Use a drive socket #8. Use a torque wrench. Tighten it to 12 Nm torque.
Step 64

Install the middle timing cover.
Step 65

Screw in the fasteners of the middle timing cover. Use a drive socket #8. Use a ratchet wrench.
Step 66

Treat the fastening bolt. Use a sealant.
Step 67

Install the timing belt tensioner pulley.
Step 68

Install the new timing belt according to the factory marks.

Replacement: water pump & timing belt kit – RENAULT MEGANE II (BM0/1_, CM0/1_). AUTODOC experts recommend:
Be careful not to damage the timing belt.
Step 69

Adjust the timing belt tension by moving the tensioner pulley. Use HEX No.H6.

Replacement: water pump & timing belt kit – RENAULT MEGANE II (BM0/1_, CM0/1_). AUTODOC recommends:
Make sure that the timing belt is properly tensioned.
Step 70

Screw in the fastener of the timing belt tensioner pulley. Use a combination spanner #13.
Step 71

Remove the camshaft gear locking tool.
Step 72

Remove the crankshaft gear locking tool.
Step 73

Turn the crankshaft gear. Use a drive socket #18. Use a ratchet wrench.

AUTODOC recommends:
Make sure all the timing belt components are mounted correctly.
Step 74

Tighten the fastener of the timing belt tensioner pulley. Use a drive socket #13. Use a torque wrench. Tighten it to 27 Nm torque.
Step 75

Treat the engine mount fasteners. Use a sealant.
Step 76

Install the engine mount to its mounting seat.
Step 77

Tighten the engine mount fastening bolts. Use a drive socket #10. Use a torque wrench. Tighten it to 40 Nm torque.
Step 78

Install the upper timing cover. Make sure you hear a click indicating that it is locked in place.
Step 79

Install the upper part of the engine mount.
Step 80

Treat the engine mount fasteners. Use a sealant.
Step 81

Tighten the upper fastener of the engine mount. Use a drive socket #16. Use a torque wrench. Tighten it to 76 Nm torque.
Step 82

Remove the support from under the engine.

Replacement: water pump & timing belt kit – RENAULT MEGANE II (BM0/1_, CM0/1_). Tip from AUTODOC:
Lower the hydraulic transmission jack smoothly, without jerks, to avoid damaging assemblies and mechanisms.
Step 83

Install the lower timing cover.
Step 84

Treat the fastening bolt. Use a sealant.
Step 85

Install the serpentine belt tensioner pulley.
Step 86

Tighten the fastener of the serpentine belt tensioner pulley. Use a drive socket #13. Use a torque wrench. Tighten it to 35 Nm torque.
Step 87

Unscrew the crankshaft pulley fastener. Use a drive socket #18. Use a ratchet wrench.
Step 88

Install the crankshaft pulley according to the factory marks.
Step 89

Install the crankshaft pulley locking tool. Use an engine timing tool set.

Step 90

Tighten the crankshaft pulley fastener. Use a drive socket #18. Use a torque wrench. Tighten it to 60 Nm torque.+90°

AUTODOC recommends:
Important! Be sure to use new fasteners.
Step 91

Remove the crankshaft pulley locking tool.
Step 92

Screw in the TDC timing pin plug. Use a drive socket #E14. Use a ratchet wrench.
Step 93

Pull aside the V-ribbed belt tensioner pulley. Use a combination spanner #16.
Step 94

Install the V-ribbed belt.

Replacement: water pump & timing belt kit – RENAULT MEGANE II (BM0/1_, CM0/1_). Tip from AUTODOC experts:
Make sure that the V-ribbed belt fits all pulleys snugly.
Step 95

Return the tensioner pulley to its initial position. Use a combination spanner #16.
Step 96

Screw in the subframe fasteners. Use a drive socket #18. Use a ratchet wrench.
Step 97

Tighten the subframe reinforcement bracket fasteners. Use a drive socket #13. Use a torque wrench. Tighten it to 35 Nm torque.
Step 98

Tighten the subframe fastening. Use a drive socket #18. Use a torque wrench. Tighten it to 105 Nm torque.
Step 99

Install the fuel filter fastening bracket.
Step 100

Screw the fixing bolts of the fuel filter bracket. Use a combination spanner #10.
Step 101

Install the fuel filter fastening bracket.
Step 102

Screw the fixing bolts of the fuel filter bracket. Use a drive socket #13. Use a ratchet wrench.
Step 103

Install the wheel arch cover to its mounting seat.
Step 104

Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
Step 105

Clean the brake disk surface. Use a brake cleaner.

AUTODOC recommends:
Replacement: water pump & timing belt kit – RENAULT MEGANE II (BM0/1_, CM0/1_). After applying the spray, wait a few minutes.
Step 106

Install the wheel.

AUTODOC recommends:
To avoid injury, hold up the wheel when screwing in the fastening bolts.
Step 107

Screw in the wheel bolts. Use wheel impact socket #17.
Step 108

Lower the car and working in a cross order, tighten the wheel bolts. Use wheel impact socket #17. Use a torque wrench. Tighten it to 105 Nm torque.
Step 109

Remove the jacks and chocks.
Step 110

Remove the coolant reservoir cap.
Step 111

Insert the funnel.
Step 112

Pour coolant in the coolant reservoir.

Replacement: water pump & timing belt kit – RENAULT MEGANE II (BM0/1_, CM0/1_). AUTODOC recommends:
Only use the coolant recommended by the manufacturer.The coolant level should be at the MAX mark.Wait until the air goes out of the system.
Step 113

Attach the terminals to the battery.

Replacement: water pump & timing belt kit – RENAULT MEGANE II (BM0/1_, CM0/1_). AUTODOC experts recommend:
Be careful! Do not mix up the positive and the negative terminals of the car battery.
Step 114

Screw in the fasteners of the battery terminals. Use a drive socket #10. Use a ratchet wrench.
Step 115

Run the engine for a few minutes. This should be done in order to remove residual air from the cooling system and to check if the components are operating correctly.
Step 116

Shut off the engine.

Step 117

Install the coolant reservoir cap.

Step 118

Screw on the coolant reservoir cap.

Step 119

Check the coolant level. If necessary, top up to the required level.

Please note!
The coolant level should be at the MAX mark.
Step 120

Remove the fender protection cover.

Step 121

Close the hood.

Replacement: water pump & timing belt kit – RENAULT MEGANE II (BM0/1_, CM0/1_). Tip from AUTODOC experts:
Be sure to record the mileage at which you replaced the timing belt and water pump kits.

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