Recommended replacement interval for the part category Spark plug : 120000 km

Important!

This replacement procedure can be used for:
RENAULT LAGUNA III (BT0/1) 2.0 16V Hi-Flex (BT1H, BT1G, BT1K), RENAULT LAGUNA III (BT0/1) 2.0 16V (BT05, BT0F, BT0W) … 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

All the parts you need to replace – Spark Plug for LAGUNA III (BT0/1) and other RENAULT models

Alternative products

Spark plug

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CHAMPION OE207 Spark plug Box, 1 - Earthed Electrode, with gasket seat, Platinum Middle Electrode

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Replacement: spark plugs – RENAULT LAGUNA III (BT0/1). Tools you'll need:

                      Electronic spray
                    
                      High-temperature anti-seize lubricant
                    
                      Torque wrench
                    
                      Spark plug socket # 16
                    
                      Drive socket # 8 
                    
                      Drive socket # 10 
                    
                      Ratchet wrench
                    
                      Round-nose pliers
                    
                      Flat screwdriver
                    
                      Telescoping magnet 
                    
                      Fender cover

Buy tools

Replacement: spark plugs – RENAULT LAGUNA III (BT0/1). Professionals recommend:

The replacement procedure is the same for all spark plugs.
All work should be done with the engine stopped.

Replacement: spark plugs – RENAULT LAGUNA III (BT0/1). Recommended sequence of steps:

Step 1

Open the hood.

Step 2

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

Step 3

Disconnect the crankcase ventilation hose from the air duct. Use round-nose pliers.
Step 4

Unscrew the clamps and fasteners on the air filter intake pipe. Use a drive socket #10. Use a ratchet wrench.
Step 5

Disconnect the air intake pipe from the air filter housing.

Step 6

Unscrew the fasteners connecting the throttle valve to the intake manifold. Use a drive socket #8. Use a ratchet wrench.
Step 7

Release the clamp and detach the connector and the vacuum hose from the intake manifold near the throttle valve. Use round-nose pliers.
Step 8

Unscrew the fasteners of the intake manifold bracket. Use a drive socket #10.
Step 9

Detach the vacuum booster hose from the intake manifold.
Step 10

Unscrew the intake manifold fasteners. Use a drive socket #10. Use a ratchet wrench.
Step 11

Remove the intake manifold.
Step 12

Cover the intake manifold passages with a microfibre towel to prevent dust and dirt from getting inside.
Step 13

Unscrew the ignition coil bracket. Use a drive socket #10.
Step 14

Take out the ignition coil from the spark plug well.
Step 15

Clean dirt, dust and debris from inside the spark plug well.
Step 16

Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench.
Step 17

Take out the spark plugs. Use a telescoping magnet.
Step 18

Apply a thin layer of a special high temperature anti-seize lubricant to the threads of the new spark plugs.
Step 19

Treat the surface of the terminals of the new spark plugs. Use electronic spray.

Step 20

Install the new spark plugs into their mounting seats.
Step 21

Screw new spark plugs and tighten them. Use the spark plug socket #16. Use a torque wrench. Tighten it to 19.6 nm torque.

AUTODOC recommends:
Don't tighten the plugs with excessive force. Exceeding tightening torque can damage the thread connection. Be careful when working with a spark plug wrench. Its skewing can cause damage to the threaded connection.
Step 22

Install the ignition coil to the spark plug well. Make sure you hear a click indicating that it is locked in place.

Replacement: spark plugs – RENAULT LAGUNA III (BT0/1). Tip:
Follow the installation sequence.
Step 23

Tighten the ignition coil fastening. Use a drive socket #10. Use a torque wrench. Tighten it to 7 nm torque.
Step 24

Remove the microfibre towel from the intake manifold.
Step 25

Remove the intake manifold gasket. Use a flat screwdriver.
Step 26

Install the new intake manifold gasket.
Step 27

Install the intake manifold.
Step 28

Tighten the intake manifold fasteners. Use a drive socket #10. Use a torque wrench. Tighten it to 27 nm torque.
Step 29

Tighten the fasteners of the intake manifold bracket. Use a drive socket №10. Use a torque wrench. Tighten it to 10 nm torque.
Step 30

Attach the vacuum booster hose to the intake manifold.
Step 31

Squeeze and install the vacuum booster hose clamp. Use round-nose pliers.
Step 32

Install the throttle valve on the intake manifold.
Step 33

Tighten the throttle valve fasteners. Use a drive socket #8. Use a torque wrench. Tighten it to 10 nm torque.
Step 34

Attach the connector and the vacuum hose to the intake manifold near the throttle valve. Use round-nose pliers.
Step 35

Connect the air intake pipe to the air filter housing.
Step 36

Connect the crankcase ventilation hose to the air duct. Use round-nose pliers.
Step 37

Tighten the clamp and fasteners on the air filter intake pipe. Use a drive socket #10. Use a ratchet wrench.

Step 38

Run the engine for a few minutes. This is necessary in order to make sure that the component operates properly.

Step 39

Shut off the engine.

Step 40

Remove the fender protection cover.

Step 41

Close the hood.

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