4 cylinder engine
1. Relieve pressure in the fuel system (see chapter 4A).
2. The fuel filter is located on the bottom of the car (pic. 23.2).
3. Raise the vehicle and place it on secure stands. Remove the mudguard from under the transmission (if there).
4. Pinch the filter hoses to minimize fuel loss when removing the filter. Keep in mind that on the N42 the pressure regulator is located in the fuel filter, so the vacuum hose from the intake manifold is also attached to it.
5. Place a suitable container under the filter, as fuel will pour out of it when removed. Loosen the clamps and remove the hoses from the filter (pic. 23.5, a, b).
6. Loosen the clamp nut that secures the filter to the body and pull out the filter (pic. 23.6). Please note that on the N42 engine, the fuel pressure regulator is built into the filter and cannot be separated.
7. Installation is carried out in the reverse order of removal. Pay attention to the arrow on the filter wall. The arrow must point in the direction of the fuel flow, i.e. to the engine.
6 cylinder engine
8. Relieve the pressure in the fuel system (see chapter 4A).
9. The fuel filter is located on a bracket bolted to the chassis next to the transmission (see fig. 23.2).
10. Raise the vehicle and place it on secure stands. Remove the mudguard from under the transmission.
11. On models with an M54 engine, remove the filter assembly cover with pressure regulator.
12. On all models, note the connection of the hoses, then pinch them. Loosen the hose clamps and disconnect the hoses from the filter. Get ready for fuel to spill out of the filter.
13. On models with the M54 engine, disconnect the vacuum hose from the pressure regulator (see fig. 23.5, b).
14. On all models, loosen the clamp nut or bolt that secures the filter and pull the filter out from under the car.
15. Installation is performed in the reverse order of removal. Pay attention to the arrow on the filter wall. The arrow must point in the direction of the fuel flow, i.e. to the engine. Finally, pressurize the fuel system as described in Section 4A.