146
CARE AND MAINTENANCE
6.2 Checking the coolant level
Operation_Pic_number:1
Level between MIN and MAX mark on the
expansion reservoir.
Operation_Pic_number:1
●
Only top up with clean, calcium-free water
with antifreeze (glycol) through filler necks
(A).
Check concentration of coolant. Check for even-
tual leaks on hose connections (heating system
too!).
NOTE:
The antifreeze solution also contains inhibi-
tors to protect against cavitation and corro-
sion. A minimum concentration of
35 - 50 vol. % antifreeze and anticorrosive is
therefore necessary throughout the year,
even in frost-free areas.
CAUTION:
When the engine is hot, take extreme
care when removing the radiator cap
and left hot steam escape.
The coolant is under pressure - risk
of scalding.
Fig.21
Fig.22
6.3 Replacing coolant
Replace coolant at least every 2 years.
Draining coolant from the radiator
Operation_Pic_number:1
●
Open the cap on filler neck.
●
Switch on the heater.
●
Position drain pan under engine.
●
Unscrew screw (A) and remove and allow
coolant to run out.
Text-module
Filling with coolant
●
Mix antifreeze solution with clean, deminerali-
sed water and fill to the level of in the expan-
sion tank.
●
With the heater switched on, run the engine
for about 10 minutes (at about 1,500 rpm).
●
When the engine has cooled down, check the
coolant level and top up if necessary.
6.4 Cleaning the cooling/hea-
ting system
If the coolant is badly contaminated, i. e. with
rust or grease, use only hot cleaning solution
(e.g. 'P3') to flush the cooling system.
●
Run the engine for about one hour, filled with
the cleaning solution.
●
Flush out with clean water and top up with
coolant solution.
DANGER:
Turn off the engine!
Fig.23
Summary of Contents for 916 Vario
Page 8: ...8 NUMERICAL INDEX ...
Page 172: ...172 CARE AND MAINTENANCE ETWiring diagram 22 3 Power supply UB 930 900 000 004 Sheet 2 ...
Page 173: ...173 CARE AND MAINTENANCE ETWiring diagram 22 4 Grounding layout 930 900 000 004 Sheet 3 ...
Page 174: ...174 CARE AND MAINTENANCE ETWiring diagram 22 5 Starter control 930 900 000 004 Sheet 4 ...
Page 175: ...175 CARE AND MAINTENANCE ETWiring diagram 22 6 Cold start system 930 900 000 004 Sheet 5 ...
Page 177: ...177 CARE AND MAINTENANCE ETWiring diagram 22 8 STVZO lighting Sheet 1 930 900 000 004 Sheet 7 ...
Page 179: ...179 CARE AND MAINTENANCE ETWiring diagram 22 10 Turn signal system 930 900 000 004 Sheet 9 ...
Page 183: ...183 CARE AND MAINTENANCE ETWiring diagram 22 14 Rear work lamps 930 900 000 004 Sheet 13 ...
Page 186: ...186 CARE AND MAINTENANCE ETWiring diagram 22 17 Heater 930 900 000 004 Sheet 16 ...
Page 191: ...191 CARE AND MAINTENANCE ETWiring diagram 22 22 Comfort bus K bus 930 900 000 004 Sheet 21 ...
Page 192: ...192 CARE AND MAINTENANCE ETWiring diagram 22 23 Instrument panel 930 900 000 004 Sheet 22 ...
Page 197: ...197 CARE AND MAINTENANCE ETWiring diagram 22 28 Transmission control 930 900 000 004 Sheet 27 ...
Page 199: ...199 CARE AND MAINTENANCE ETWiring diagram 22 30 Suspension 930 900 000 004 Sheet 29 ...
Page 200: ...200 CARE AND MAINTENANCE ETWiring diagram 22 31 PTO 930 900 000 004 Sheet 30 ...
Page 202: ...202 CARE AND MAINTENANCE ETWiring diagram 22 33 LBS 930 900 000 004 Sheet 32 ...
Page 203: ...203 CARE AND MAINTENANCE ETWiring diagram 22 34 Engine control 930 900 000 004 Sheet 33 ...
Page 262: ...262 TECHNICAL DATA ...
Page 266: ...266 ALPHABETICAL INDEX ...