Filling coolant using a pump
1.
Connect appropriate pump with hose to drain
valve (1).
2.
Loosen the vent line union at the distributor
piece (arrow).
3.
Open drain valve and pump coolant into en-
gine at 0.5 bar minimum.
4.
Tighten union (arrowed) if coolant leaks out
at loose union.
5.
Fill expansion tank until coolant level reaches
overflow edge.
6.
Close drain valve and tighten to specified torque using a torque wrench.
Name
Size
Type
Lubricant
Value/Standard
Spindle
11A/F
Tightening torque
12 Nm
7.
Check satisfactory condition of valve cover and clean sealing faces if required.
8.
Position valve cover on filler neck and close.
9.
Start engine (→ Page 123).
10.
After 10 seconds of running the engine without load, shut down the engine (→ Page 129).
11.
Turn valve cover on coolant expansion tank counterclockwise to first stop and release pressure.
12.
Continue to turn valve cover counterclockwise and remove.
13.
Check coolant level (→ Page 274) and top up coolant as required:
a) Fill in coolant in expansion tank until the coolant level at top edge of filler neck remains constant.
b) Position valve cover on filler neck and close.
14.
Repeat the steps from “Start engine” (→ Step 9) until coolant no longer needs to be topped up.
15.
Disconnect pump and hose.
280 | Low-Temperature Circuit | MS150093/05E 2018-12
TIM-ID: 0000019867 - 005
