Replacing the air filter element
The filter element should be replaced every 20,000 km. If there is a lot of dust, replacement should be done more often.
Withdrawal
Remove air hose -4-.
Pull trim -3- upwards after turning plastic clips 90°to the left (arrows).
Open the quick-release fasteners on the air filter housing.
Swing air filter cover -2- down and remove filter element -1-. If required, unscrew the 2 nuts securing the upper part of the filter, lift the upper part. This makes it easier to remove the lower part of the filter.
Wipe the filter housing thoroughly.
In case of slight contamination, knock out the filter element with the dirty side down. A clogged filter must be replaced.
Attention: Do not clean the filter element with gasoline or cover with oil. Do not blow out the filter with compressed air.
Installation
Insert a new filter element into the cap.
If the upper part was removed, insert the assembled filter into the mount and tighten the 2 nuts.
Attention: Make sure that the upper part is properly seated in the rubber support.
Insert the air filter cover, place it: - from below and secure with quick-release fasteners.
Connect the lining and secure with the upper latches.
Connect air hose.
Removal and installation of the fuel filter
The fuel filter is located in the engine compartment and must be replaced as part of the maintenance schedule every 60,000 km.
Withdrawal
Connect ground wire to battery.
Attention: Do not make open fire! Fire hazard!
Clamp the hose from the fuel pump to the filter.
Disconnect the fuel hose from the filter to the fuel distributor.
Unscrew filter bracket and remove fuel filter with fuel hose.
Disconnect the fuel hose from the fuel filter, after releasing and sliding the clamp.
Installation
Connect the fuel hose leading to the fuel distributor -1- to the new filter and secure the hose with a clamp.
Connect the fuel hose closed with the clip -3- to the new filter and secure the hose with a clamp.
Insert the fuel filter and secure it to the bracket. When doing this, observe the correct installation position of the filter: the fuel flow passes through the filter from the bottom up. The arrow -2- on the fuel filter housing must point in the direction of the fuel flow.
Remove clamp from hose.
Connect ground wire to battery.
Start the engine and check for fuel leaks at the connections.
1 O-ring
2 heating element
3 O-ring
4 Filter cartridge
5 Lid
6 Drain valve (only model 324td)
7 Hand pump (only model 324td)
8 Air outlet bolt
9 Filter flange
10 Water removal
Water removal and diesel fuel filter replacement
Water removal from the fuel filter should be carried out as part of the maintenance schedule every 10,000 km, but at least once a year. The fuel filter must be replaced every 20,000 nm.
Loosen the bleed screw -8- a few turns.
Place a suitable container under the drain plug.
Model 324td: press the bleed valve -6- on the cap and drain off any residual water until clean diesel fuel flows out.
Model 324td: bleed the fuel system (on the 324d, air is bled from the fuel system automatically when the engine is started). To do this, turn the hand pump wheel -7- by 90° (¼ turn) and pump the pump until the fuel comes out through the air outlet bolt -8-. Then turn the wheel of the hand pump again by 90°and thus block the pump.
Tighten the bleed screw -8-.
Replacement
Drain the sediment from the filter, as when removing Veda.
Unscrew the fuel filter -4- from the filter flange -9- by hand or, if it is firmly seated, with a tightening wrench, for example from HAZET 2170. If the heating element -2- turns while doing this, hold it with a leather belt or a tightening wrench.
Replace cap -5- on new filter.
Fill the new filter to the brim with diesel fuel and screw it on by hand.
Attention: Do not overtighten the filter. After the gasket is in contact with the flange, tighten another ½ turn.
Model 324td: bleed the fuel system.
Tighten the bleed screw -8- again.
After the test drive, check the tightness of the power supply system.