8.10 Low-Temperature Circuit
8.10.1 Charge-air coolant level – Check
Preconditions
☑
Engine is stopped and starting disabled.
☑
MTU Fluids and Lubricants Specifications (A001063/..) are available.
WARNING
Coolant is hot and under pressure.
Risk of injury and scalding!
• Let the engine cool down.
• Wear protective clothing, gloves, and goggles / safety mask.
Checking charge-air coolant lev-
el at filler neck
1.
Turn breather valve on coolant expansion
tank counterclockwise to the first stop and
allow pressure to escape.
2.
Continue to turn breather valve counterclock-
wise and remove.
3.
Check coolant level (coolant must be visible
at marker plate).
4.
Top up coolant if necessary (→ Page 126).
5.
Check satisfactory condition of breather
valve, clean sealing faces if required.
6.
Fit breather valve and close it.
Checking charge-air coolant level by means of level sensor
1.
Switch on engine control system and check display (coolant level is automatically monitored by engine con-
trol system).
2.
Top up coolant if necessary (→ Page 126).
MS150100/04E 2015-09
| Task Description | 123
TIM-ID: 0000031873 - 003
