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2.
Top up coolant in expansion tank via filler
neck until coolant level at top edge of filler
neck remains constant.
3.
When coolant emerges from the venting
point, close the venting point.
4.
Check proper condition of valve cover (1) on
coolant expansion tank and clean sealing
faces if required.
5.
Fit valve cover (1) and close it.
6.
Start engine (→ Page 73).
7.
After 10 seconds of running the engine with-
out load, shut down the engine (→ Page 78).
8.
Turn breather valve (1) on coolant expansion
tank counterclockwise to the first stop and
allow pressure to escape.
9.
Turn valve cover (1) counterclockwise and re-
move.
10.
Check coolant level (→ Page 184) and top up
with coolant through the filler neck if re-
quired:
a) Fill in coolant in expansion tank until the
coolant level at top edge of filler neck re-
mains constant.
b) Fit valve cover and close it.
11.
Repeat the steps from "Start engine"
(→ Step 6) until coolant is no longer needed
to be topped up.
Final steps
1.
Start the engine and run it without load for some minutes.
2.
Check coolant level (→ Page 184) and top up coolant as required.
MS15060/01E 2018-12 | Coolant Circuit, General, High-Temperature Circuit | 191
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