Peugeot 405 Manual

Fuel filter renewal (12000 Mile (20 000 km) / 12 Month Service)
Routine maintenance and servicing / Fuel filter renewal (12000 Mile (20 000 km) / 12 Month Service)


Warning: Before carrying out the following operation, refer to the precautions in Safety first! and follow them implicitly.

Petrol is a highly-dangerous and volatile liquid, and the precautions necessary when handling it cannot be overstressed.

Note: On models from 1994, the makers specified interval for this procedure is 18 000 miles (30 000 km) for carburettor models, and 36 000 miles (60 000 km) for fuel injection models.

Carburettor models
1 The fuel filter is connected into the fuel hose between the pump and the carburettor in the engine compartment (see illustration).

8.1 Fuel filter location on carburettor models
8.1 Fuel filter location on carburettor models

2 To remove the filter, release the retaining clips and disconnect the fuel hoses from the filter. Where the original Peugeot crimped- type hose clips are fitted, cut them off and discard them; use standard worm-drive hose clips on refitting.

3 Note the direction of the arrow marked on the filter body. Unclip the filter from its retaining bracket, and remove it from the vehicle.

4 Connect the fuel hoses to the new filter.

Make sure that the arrow on the filter body is pointing in the direction of the fuel flow, ie.

towards the fuel pump. Secure the hoses in position by securely tightening the retaining clips, then clip the filter back into position in its retaining bracket.

5 At the same time, check the fuel reservoir tank on the side of the carburettor for sediment.

Remove the reservoir as necessary for cleaning.

6 The fuel connections on the reservoir are as follows.

a) Top hose - return to tank.

b) Middle hose - supply from pump via filter.

c) Lower hose - to carburettor inlet.

Fuel injection models
7 The fuel filter is situated underneath the rear of the vehicle, mounted on the right-hand side of the fuel tank. To gain access to the filter, chock the front wheels, then jack up the rear of the vehicle and support it on axle stands (see Jacking and Vehicle Support).

8 Clamp the fuel hose on the tank side of the filter. Bearing in mind the information given in the relevant Part of Chapter 4 on depressurising the fuel system, release the clips and disconnect the fuel hoses from the filter. Be prepared for fuel spillage (see illustration).

8.8 Fuel filter on fuel injection models showing fuel hoses (A) and clamp
8.8 Fuel filter on fuel injection models showing fuel hoses (A) and clamp bolt (B)

9 Note the direction of the arrow marked on the filter body. Slacken the retaining clamp screw, then slide the filter out of the clamp, and remove it from underneath the vehicle.

10 Dispose safely of the old filter; it will be highly-inflammable, and may explode if thrown on a fire.

11 Slide the new filter into position in the clamp, ensuring that the arrow on the filter body is pointing in the direction of the fuel flow, ie. towards the throttle body/fuel rail.

This can be determined by tracing the fuel hoses back along their length.

12 Connect the fuel hoses to the filter, and secure them in position with their retaining clips. Remove the hose clamp.

13 Start the engine, and check the filter hose connections for leaks. Lower the vehicle to the ground on completion.


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