6 © 2002 6.3 Cooling System Service and Maintenance Venting The cooling systems, which are built in line with our installation guidelines, are vented automatically after they have been filled. With external cooling systems in accordance with the specifications of the manufacturer. 6.3.6 Filling/Venting the Cooling System 1012 E/1013 E Standard engine 0297 4987 1 Open radiator cap position 1. Loosen vent plug position 2. Add coolant up to the maximum marking or filler limit (heater valve of the system must be opened – if fitted). Tighten vent plug position 2 + sealing plug position 3. Close radiator cap position 1. Start engine and warm up until thermostat opens. Switch off engine.
Check coolant level when the engine is cold and top up as required. Close the radiator sealing plug position 1. BFM 1012E BFM 1013E 6.3.5 Draining the Cooling System © 26 341 0 Place a container under sealing plug 1. Remove sealing plug 1 from the crankcase. Drain off the coolant. Tighten sealing plug 1 again. If sealing plug 1 is not accessible, the system can be drained at the engine oil cooler (coolant duct). Filling/venting the cooling system: See section 6.3.6. Be careful when draining hot coolant – danger of scalds! Collect drained coolant and dispose of according to envi- ronmental regulat-ions. 1012 E / 1013 E ! © 26 341 0 © 26 341 0