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12 Customer service and maintenance
206
B-MC - 12/18-2 - EHG-0016-01EN
12.6.3 Topping up heating fluid
Position the vehicle horizontally. This prevents the formation of bubbles.
Switch off the hot-water heater and allow it to cool down.
Unscrew or pull off the panel.
Open the rotary lid (Fig. 211,1 or Fig. 212,1) on the compensator reser-
voir.
Remove cover.
Check anti-freeze with an anti-freeze hydrometer. The frost protection
content must be 40 % or provide frost protection of up to -25 °C.
Fill water-frost protection mixture (standard G11) slowly into the com-
pensator reservoir.
The optimum fluid level is reached when the fluid in the compensator
reservoir is 1 cm above the "MIN" mark when it is cooled down.
12.6.4 Bleeding the heating system
The bleeding valves of the hot-water heater are installed at various points in
the vehicle. To gain access to the bleeding valves, it might be necessary to
remove the associated ventilation grill above the convector. Sometimes the
access is possible through panels (e.g. in the back cushion ventilation).
Bleeding must be done on all bleeding valves.
1
Bleeding valve on hose extension
2 Valve
opening
3
Bleeding valve on pipeline
4 Valve
opening
Fig. 213 Bleeding valves (hot-water
heater)
Switch off the hot-water heater and allow it to cool down.
Open the bleeding valve (Fig. 213,1 or 3) and keep it open until no more
air comes out of the valve opening (Fig. 213,2 or 4).
Depending on the position, one of two bleeding valve types will be in-
stalled.
Bleeding:
Summary of Contents for BMC 550
Page 2: ...Instruction manual 2 B MC 12 18 2 EHG 0016 01EN...
Page 8: ...Checklist before first journey of the vehicle 8 B MC 12 18 2 EHG 0016 01EN...
Page 12: ...1 Introduction 12 B MC 12 18 2 EHG 0016 01EN...
Page 20: ...2 Safety 20 B MC 12 18 2 EHG 0016 01EN...
Page 54: ...4 During the journey 54 B MC 12 18 2 EHG 0016 01EN...
Page 140: ...8 Electrical system 140 B MC 12 18 2 EHG 0016 01EN...
Page 172: ...9 Appliances 172 B MC 12 18 2 EHG 0016 01EN...
Page 186: ...10 Sanitary fittings 186 B MC 12 18 2 EHG 0016 01EN...
Page 202: ...11 Care 202 B MC 12 18 2 EHG 0016 01EN...
Page 224: ...13 Wheels and tyres 224 B MC 12 18 2 EHG 0016 01EN...
Page 240: ...16 Technical data 240 B MC 12 18 2 EHG 0016 01EN...
Page 242: ...17 Instructions for the service partner 242 B MC 12 18 2 EHG 0016 01EN...