![T31 [2007 - 2011]](/uploads/-_2009.jpg)
Note:
To replace the candles, you will need a special 14 mm candle wrench .
Before changing the candles on the Nissan X-Trail, use a 10 mm socket to unscrew the wire from the "negative" terminal of the battery.
When to change spark plugs on a Nissan X-Trail
According to the maintenance regulations, it is recommended to replace spark plugs every 15 thousand km. run. When using iridium - 1 time in 30 thousand km. When using low-quality gasoline containing a large amount of additives for refueling, the life of the spark plugs is significantly reduced.
Signs of wear and carbon deposits are difficulty starting the engine, a drop in power, and an increase in fuel consumption. Visual inspection shows soot deposits, oil deposits, discoloration of the insulator, deformation of the electrodes from overheating.
Interruptions in the operation of the ignition system in most cases are associated with a malfunction of one or more candles.
Where are Nissan X-Trail spark plugs installed?
Candles are installed on top of the cylinder head, under the ignition coils. To gain access, on a vehicle with an MR20DE engine, you will first need to remove the intake manifold, and on a QR25DE engine, the decorative trim and air duct resonator.
Replacing spark plugs on a Nissan X-Trail with an MR20DE engine
1. Place the vehicle on a level surface and lift the hood.
2. Use a 10 mm socket to unscrew the 2 screws securing the engine trim.
3. Remove from the front of the holders and remove the trim.
4. Press the latch and disconnect the block of wires from the adsorber valve.
5. Squeeze the clamp with pliers and slide it along the hose.
6. Disconnect the hose from the valve.
7. Using an 8 mm socket, unscrew the 2 screws securing the air supply sleeve.
8. Move the hose clamp with pliers. Remove the crankcase ventilation hose from the air inlet hose fitting.
9. Remove the air supply sleeve and put it aside.
10. Using an 8 mm socket, unscrew the 4 bolts securing the throttle assembly to the manifold.
11. Move the throttle to the side.
12. Loosen the brake booster hose clamp. Slide the clamp over the hose and disconnect the hose from the intake manifold.
13. In the same way, disconnect the crankcase ventilation hose from the fitting on the cylinder head.
14. Using a 10 mm socket with an extension, remove the 5 front bolts securing the intake manifold flange to the cylinder head.
15. Using a 10 mm socket, unscrew the rear mounting bolt of the intake manifold receiver.
16. Turn out a bolt of back fastening of an inlet collector to a head of the block of cylinders located under throttle knot.
17. Remove the intake manifold.
18. To avoid getting dirt and dust into the engine cylinders, thoroughly clean the top of the engine with a rag.
19. Before replacing the spark plug on a Nissan X-Trail, you will first need to remove the ignition coil. To do this, press the latch and disconnect the wire block from the ignition coil.
20. Using a 10 mm socket wrench , remove the coil mounting bolt.
21. Remove the coil from the Nissan X-Trail spark plug.
22. Use a 14 mm spark plug wrench to remove the spark plug.
23. Remove the Nissan X-Trail spark plug from the spark plug well.
24. Assess her condition by appearance.
25. If the spark plug looks good, use a feeler gauge to check the gap between the spark plug electrodes. It should be no more than 1.1 mm.
26. If the Nissan X-Trail spark plug gap differs from the specified value, adjust it by bending the side electrode.
Note:
Adjust the gap only by bending the side electrode. Any bending of the center electrode will break the spark plug insulator.
27. Similarly, remove and inspect the remaining spark plugs.
28. If the spark plugs are bad, replace the Nissan X-Trail spark plugs with working ones.
Note:
When replacing spark plugs with new ones, install spark plugs with characteristics recommended by the manufacturer.
29. Install the spark plugs in the spark plug wells. Screw them first by hand (with a wrench without a knob), and then tighten with a wrench. Tightening torque for Nissan X-Trail spark plugs 20 N•m.
30. Install the ignition coils in the reverse order of removal. The moment of an inhaling of bolts of fastening 7 Н•м.
31. Install the intake manifold and all parts in the reverse order of removal. Tighten the fastening bolts in sequence from the center to the sides. Tightening torque 27 N•m. Bolts of fastening of a receiver tighten the moment 19 Н•м.
Replacing spark plugs on a Nissan X-Trail with a QR25DE engine
1. Place the vehicle on a level surface and lift the hood.
2. Use a 10 mm socket to remove the 3 engine cover mounting bolts.
3. Remove the decorative engine cover.
4. Using a 10 mm socket wrench , remove the mounting bolt.
5. Using a 10 mm socket wrench , loosen the clamp and move the air intake to the side.
6. Thoroughly clean the top of the engine. This will help prevent debris from entering the cylinder head.
7. Press a clamp and disconnect a block of wires from the ignition coil.
8. Using a 10 mm socket wrench , remove the coil mounting bolt.
9. Pull out the ignition coil.
10. Use a 14 mm spark plug wrench to remove the spark plug.
11. Remove the Nissan X-Trail spark plug from the spark plug well.
12. Assess her condition by appearance.
13. If the spark plug looks good, use a feeler gauge to check the Nissan X-Trail spark plug gap between the electrodes. It should be no more than 1.1 mm.
14. If the gap differs from the specified value, adjust it by bending the side electrode.
Note:
Adjust the gap only by bending the side electrode. Any bending of the center electrode will break the spark plug insulator.
15. Similarly, remove and inspect the remaining spark plugs.
16. If the spark plugs are bad, replace the Nissan X-Trail spark plugs with working ones.
Note:
When replacing spark plugs with new ones, install spark plugs with characteristics recommended by the manufacturer.
17. Install the spark plugs in the spark plug wells. Screw them into the cylinder head first by hand (with a wrench without a wrench), and then tighten with a wrench. Tightening torque for Nissan X-Trail spark plugs 20 N•m.
18. Install the ignition coils in the reverse order of removal. The moment of an inhaling of their bolts of fastening 7 Н•м.
19. Reinstall the trim and air duct resonator back onto the engine.
Note:
Video on how to change spark plugs on a Nissan X-Trail with a QR25DE engine
What candles are on the Nissan X-Trail
Genuine Nissan spark plugs for QR25DE, MR20DE engines are marked with the designation NGK PLZKAR6A-11 (catalog number 22401-CK81B).
Also with numbers 22401EW61C; 22401JA01B; 22401CK81B.
Analogues are suitable for various engines :
- Denso (articles IXEH22TT; FXE20HR11);
- Bosch (catalog number 0242129514);
- NGK (numbered 9029).
Useful advice:
For interchangeability, it is better to consult experienced auto mechanics.
Recommendations from the repair manual Nissan X-Trail T31
Source: carpedia.club
