320 Engine G WARNING Certain components in the engine compart- ment could be very hot, e.g. the engine, the radiator and parts of the exhaust system. There is a risk of injury when accessing the engine compartment. As far as possible, allow the engine to cool down and only touch the components descri- bed in the following. Replacing the fuel filter X Tilt the cab forwards ( Y page 314). G WARNING There are moving components in the engine compartment. Certain components may con- tinue to move or suddenly move again even after the ignition has been switched off, e.g. the radiator fan. There is a risk of injury. If you have to carry out work in the engine compartment:
Breakdown assistance R switch off the ignition R never touch the dangerous areas surround- ing moving components, e.g. the rotation area of the fan X Remove cap : with filter element ? . X Unscrew cap : from filter housing ; . R remove jewellery and watches R keep items of clothing and hair, for exam- ple, away from moving parts. X Unclip filter element ? from cap : . X Clean filter housing ; and cap : . X Replace sealing ring = . G WARNING Fuel is highly flammable. Improper handing of fuel creates a risk of fire and explosion. Avoid fire, naked flames, smoking and creat- ing sparks under all circumstances.
Switch off the ignition and auxiliary heating before car- rying out work to the fuel system. Always wear protective gloves. X Clip new filter element ? into cap : . X Insert cap : with filter element ? in filter housing ; . X Tighten cap : . Tightening torque approx- imately 25 Nm. X Bleed the fuel system ( Y page 322). X Tilt the cab back into the driving position ( Y page 314). H Environmental note Dispose of the water-fuel mixture in an envi- ronmentally responsible manner. Draining and replacing the fuel prefil- ter with water separator H Environmental note Dispose of used filter elements, seals and fuel residue in accordance with relevant local reg- ulations.
Important safety notes G WARNING Fuel is highly flammable. Improper handing of fuel creates a risk of fire and explosion.