6 Maintenance
9000-hour maintenance/five-year maintenance
max
min
7071_003-045
1
– Open the lid slowly (1) and allow the pres-
sure to drop.
– Open the bonnet; see ⇒ Chapter "Opening
the bonnet", P. 5-55.
– Place a sufficiently large collection vessel
under the engine.
7094_003-004
3
– Open the clip (3) and remove the hose.
– In addition to draining the coolant from the
engine, remove the connection spigot to-
gether with the coolant regulator (arrowed).
ENVIRONMENT NOTE
Dispose of the coolant properly.
Topping up the coolant
7094_003-005
4
567
– Rotate the coolant regulator (7) 90° anti-
clockwise and remove it from the (5) con-
nection spigot.
– Replace the sealing ring (6) and wet it with
coolant.
– Insert the coolant regulator (7) into the con-
nection spigot (5) and rotate it 90° clock-
wise.
– Re-fit the connection spigot (5) with the
coolant regulator (7) into the engine block.
– Tighten the securing bolts (4) with a torque
of 15 Nm.
244 171673 [EN]
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