4-cylinder M43TU engine
Withdrawal
1. Each spark plug has a separate ignition coil. All coils are connected in a common module, which is located above the upper support of the right front suspension (pic. 3.1).
2. Turn off the ignition.
3. Disconnect the electrical connector from the ignition coil module.
4. Unfasten the latches and remove the plastic screen from the ignition coil module. Disconnect the high voltage wires from the module (Figure 3.4, a, b). Label the wires to avoid confusion during installation. The cylinder numbers for connecting the corresponding wires are marked on top of the coils of the module.
5. Turn away bolts of fastening of the module of coils and remove the module from a body.
Installation
6. Installation is carried out in reverse order. Do not mix up the high voltage wires when connecting them to the module.
4-cylinder N42 engine
Withdrawal
7. Turn out two bolts of fastening of a cover over the engine, lift a forward edge of a cover and pull out it forward.
8. At the rear of the engine compartment, turn the two tabs 90°counterclockwise and remove the cabin filter cover. Pull the filter out of the housing.
9. Unfasten the four latches of the wiring box and remove the sleeves with wires from the box (pic. 3.9).
10. Remove the four screws and pull the cabin filter housing forward (pic. 3.10).
11. Remove the oil filler cap. Align the marks on the neck of the hole and on the neck (pic. 3.11). Squeeze the unmarked sides of the neck and pull it out of the neck.
12. Remove the plastic cover from the ignition coil module (pic. 3.12).
13. Open the latches of the electrical connectors of the coils and disconnect the coils of the connector plug (pic. 3.13). Remove the coils from the spark plugs.
Installation
14. Installation is carried out in sequence. reverse withdrawal. The lug on the cylinder head must fit into the rubber seal on the underside of the coil.
6-cylinder engines
Withdrawal
15. Each candle has its own coil. The coils are located directly above the spark plugs in the cylinder head cover.
16. Turn off the ignition.
17. Remove the oil filler cap.
18. Remove the air duct of the ventilation and interior heating system in the rear of the engine compartment as follows.
- A) Remove the cabin air filter cover by turning its retainers 90°counterclockwise. Pull the filter out of the housing.
- b) Unfasten the four latches of the wiring box and remove the sleeves with wires from the box (pic. 3.9).
- V) Remove the four screws and pull the cabin filter housing forward.
- G) In the left rear corner of the engine compartment, pull off the seal, turn the two latches counterclockwise and slide the trim panel slightly forward
- d) Turn out two screws and remove an air duct.
19. Remove the plugs from the plastic cover above the injectors, unscrew the screws and remove the cover (pic. 3.19).
20. Remove the plastic cover from the cylinder head cover. To remove the outer cover, remove the plugs, unscrew the two nuts, lift the cover and slide it forward (pic. 3.20).
21. Raise the coil connector lock and disconnect the connector plug from the coil (pic. 3.21). If all coils must be removed, disconnect all coil connectors and disconnect the ground bar on the front of the timing chain cover. Now the wiring harness can be released from the fasteners and moved to the side.
22. Turn away two nuts of fastening of the coil. Take into account the ground wires and brackets that are attached with the same nuts. If the bracket is attached with the nuts of two different coils, you may need to unscrew the nut of the adjacent coil and remove the bracket so that it does not interfere with the removal of the desired coil (pic. 3.22). Keep in mind that the coils are spring loaded and will rise as the nuts are loosened.
23. Remove the coil from the candle and from the cylinder head cover (pic. 3.23).
Installation
24. Installation is carried out in reverse order. Do not forget to secure with coil nuts all brackets and ground wires that were before disassembly