7.16.1 Drain and venting points

Left side

1 Engine coolant drain plug 2 Engine coolant drain plug 3 Raw water pump drain plug

Free end (KGS)

1 Three-way cock 2 Fuel filter 3 Fuel vent valve 4 Raw water pump filling plug 5 Raw water pump drain plug 6 Connection for oil extrac‐tion 7 Oil dipstick (connection left or right engine side optional) 8 Oil filler neck (connection left or right engine side optional) 9 Fuel priming pump

Right side

1 Engine coolant drain plug 2 Engine coolant drain plug 3 Engine oil filter 4 Fuel priming pump 5 Raw water pump filling plug 6 Oil filler neck (connection left or right engine side optional) 7 Oil dipstick (connection left or right engine side optional) 4 Leak-off fuel tank

Driving end (KS)

1 Engine coolant drain plug 2 Oil filler neck (connection left or right engine side optional) 3 Oil dipstick (connection left or right engine side optional) 4 Oil dipstick (connection left or right engine side optional) 5 Oil filler neck (connection left or right engine side optional) 6 Engine coolant drain plug 7 Fuel vent

7.16.2 Engine coolant – Level check

WARNING Preconditions

☑ Engine is stopped and starting disabled. ☑ MTU Fluids and Lubricants Specifications (A001061/..) are available.

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 of filler neck on coolant expansion tank counterclockwise to first stop and allow pressure to escape. 2. Continue to turn breather valve counter‐clockwise and remove. 3. Check coolant level (coolant must be visible at the lower edge of the cast-in eye).

Checking coolant level at remote cooler

1. Check coolant level (coolant must be visible at marking plate). 2. Top up with treated coolant as necessary (→ Page 135). 3. Check proper condition of breather valve and clean sealing faces. 4. Place breather valve on filler neck and close.

Coolant level check by means of level sensor:

1. Switch on engine control system and check display (coolant level is automatically monitored by engine control system). 2. Top up with treated coolant as necessary (→ Page 135).