8.14 Coolant Circuit, General, High-Temperature Circuit
8.14.1 Engine coolant – Level check
Preconditions
☑ Engine is stopped and starting disabled.
☑ MTU Fluids and Lubricants Specifications (A001061/..) 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 coolant level 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 the lower edge of the cast-in eye or at the
marking plate).
4. Top up with treated coolant as necessary
(→ Page 172).
5. Check and clean breather valve.
6. Place breather valve on filler neck and close.
Coolant-level check by means of level sensor:
1. Switch on engine control system and check readings on the display.
2. Top up with treated coolant as necessary (→ Page 172).
MS15054/03E 2018-07 | Coolant Circuit, General, High-Temperature Circuit | 169
TIM-ID: 0000000037 - 004
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