Filling coolant from below with
pump
1.
Connect appropriate pump with hose to drain
valve of engine coolant pump (arrow).
2.
Loosen vent line union on distributor piece
(arrowed).
3.
Open drain valve and pump coolant into en-
gine at 0.5 bar minimum.
4.
Tighten union (arrow) if coolant leaks out at
loose union.
5.
Fill expansion tank until overflow edge is
reached.
6.
Close drain valve.
7.
Check serviceable condition of breather valve
on coolant expansion tank, clean sealing
faces as necessary.
8.
Fit breather valve and close it.
9.
Start engine (→ Page 45).
10.
After 10 seconds of running the engine with-
out load, stop engine (→ Page 48).
11.
Turn breather valve on coolant expansion
tank counterclockwise to the first stop and
allow pressure to escape.
12.
Continue to turn breather valve counterclock-
wise and remove.
13.
Check coolant level (→ Page 111) and top up
coolant as necessary:
a) Top up coolant in expansion tank via filler
neck until coolant level at top edge of fill-
er neck remains constant.
b) Fit breather valve and close it.
14.
Repeat the steps from "Start engine"
(→ Step 9) until coolant no longer needs to be
topped up.
15.
Remove pump and hose.
Final steps
1.
Start engine and run it without load for some minutes.
2.
Check coolant level (→ Page 111) and top up coolant as necessary.
M015565/03E 2016-02
| Coolant Circuit, General, High-Temperature Circuit | 115
TIM-ID: 0000000959 - 009
