Operating instructions

Filling coolant through filler neck
1. Open vent points on distributor, oil heat ex‐
changer and exhaust turbochargers (ar‐
rowed).
2. Fill in coolant in expansion tank via filler
neck until coolant level at top edge of filler
neck remains constant.
3. When coolant emerges from the vent
points, close vent points one by one, pro‐
ceeding from the lowest point upwards.
4. Check satisfactory condition of breather
valve and clean sealing surfaces if required.
5. Place breather valve on filler neck and
close until it engages (first lock).
6. Start engine (→ Page 66).
7. After 10 seconds of engine operation with‐
out load, shut down the engine
(→ Page 74).
8. Turn breather valve counterclockwise and
remove.
9. Check coolant level (→ Page 154) and top
up engine coolant as required:
a) Repeat the steps from “Start engine”
(→ Step 6) until coolant no longer needs
topping up.
b) Check satisfactory condition of breather
valve and clean sealing surfaces if re‐
quired.
c) Place breather valve on filler neck and
close.
Final steps
1. Start engine and run without load for some minutes.
2. Check coolant level (→ Page 154) and top up coolant as required.
158 | Task Description | MS150047/02E 2012-03
TIM-ID: 0000036684 - 001