166 Vehicle carePlace a container underneath thefilter housing. Loosen the knurledscrews on the filter cover and on thelower part of the filter by approx. oneturn, to drain off the water.The filter is drained as soon as dieselfuel emerges from the knurled screwat the bottom. Retighten the twoscrews.Check diesel fuel filter at shorterintervals if the vehicle is subjected toextreme operating conditions.Diesel fuel system bleedingIf the fuel tank has been run dry, it willbe necessary to air vent or bleed thediesel fuel system.Fill the tank with fuel and proceed asfollows:1. Place a suitable containerunderneath the fuel filter ventscrew to collect fuel.2. Loosen the vent screw (arrowed)by one turn.3. Manually operate the in-linesupply pump slowly and steadilyuntil fuel discharging from theloosened vent screw is free of airbubbles.4. Retighten the vent screw.If the engine cannot be started afterseveral attempts to bleed the dieselfuel system, seek the assistance of aworkshop.Wiper blade replacementWiper blades on the windscreenLift wiper arm, press retaining cliptowards wiper arm and detach wiperblade.Attach the wiper blade slightly angledto the wiper arm and push until itengages.Lower wiper arm carefully.
