MTU 12 V 4000 C10 Operating Instructions Manual page 124

Filling with coolant using a pump
1. Connect a suitable pump with a hose to the
drain valve (arrowed).
2. Open vent on intercooler (arrow).
3. Open drain valve and pump coolant into en‐
gine at 0.5 bar minimum.
4. Close venting point when coolant emerges.
5. Fill expansion tank up to overflow.
6. Close drain valve.
7. Check proper condition of breather valve
and clean sealing faces if required.
8. Place breather valve on filler neck and
close.
9. Start engine (→ Page 42).
10. After 10 seconds of running the engine
without load, shut down the engine
(→ Page 44).
11. Turn breather valve of coolant expansion
tank counterclockwise to the first stop and
allow pressure to escape.
12. Turn breather valve counterclockwise and
remove.
13. Check coolant level (→ Page 120) and top
up coolant as required:
a) Top up with coolant via expansion tank
until the coolant level is constant at the
overflow.
b) Place breather valve on filler neck and
close.
14. Repeat the steps from "Start engine"
(→ Step 9) until coolant is no longer needed
to be topped up.
15. Disconnect pump and hose.
124 | Task Description | MS150049/02E 2012-11