Filling with charge-air coolant using
pump
1.
Connect a suitable pump with a hose to the
drain valve (arrow).
2.
Release union at distributor (arrow).
3.
Open drain valve and pump coolant into en‐
gine at 0.5 bar minimum.
4.
Close venting point when coolant emerges
from the released union.
5.
Fill expansion tank until overflow edge is
reached.
6.
Close drain valve.
7.
Check proper condition of breather valve,
clean sealing faces if required.
8.
Set breather valve onto filler neck and close
it.
9.
Start engine (→ Page 32).
10.
After the engine has run at unloaded condi‐
tion for 10 seconds, stop engine
11.
Turn breather valve of filler neck on coolant
expansion tank counterclockwise to first
stop and allow pressure to escape.
12.
Continue to turn breather valve counter‐
clockwise and remove.
13.
Check coolant level (→ Page 126) and top
up if required:
a) Fill in coolant via filler neck on expan‐
sion tank until the coolant level at bot‐
tom edge of filler neck remains con‐
stant.
b) Check proper condition of breather
valve, clean sealing faces if required.
c) Fit breather valve and close.
14.
Repeat the steps from "Start engine"
(→ Step 8) until coolant is no longer needed
to be topped up.
15.
Disconnect pump and hose.
130 | Task Description | MS150054/02E 2012-02
TIM-ID: 0000014848 - 002
