17 00 008 Draining and adding coolant (N54, N54T)
Special tools required:
Only carry out repair work on the cooling system after the engine has cooled down!
Never reuse used coolant!
When replacing and removing components which rely on the corrosion protection effect of the coolant, it is essential to change the coolant. The cooling system must therefore be drained and refilled.
In the case of other removal work involving the draining of part quantities of coolant, replace these quantities which have been drained with new coolant.
Installation note:
Use only recommended coolant. See RADIATOR -- OPERATING FLUIDS .
Observe mixture ratio. See RADIATOR -- OPERATING FLUIDS .
Protective measures/rules of conduct:
- Wear safety goggles
- Wear protective gloves
- Observe national/country-specific regulations
Danger of injury!
Catch and dispose of drained coolant in drip tray (1) and if necessary special tool 00 2 030 (universal hydraulic lifting equipment).
Recycling:
Observe country-specific waste disposal regulations.
Necessary preliminary work:
- Follow notes for CARRYING OUT REPAIR WORK ON THE COOLING SYSTEM .
- Remove CHARGE AIR COOLER .
Draining coolant:
Open sealing cap (1) on coolant expansion tank (2).
Installation note:
Close sealing cap (1) until the arrow marks line up.
Open coolant drain plug (1).
Drain, catch and dispose of coolant.
Installation note:
- Replace sealing ring.
- Tightening torque 17 11 2AZ .
Unfasten and detach coolant hose (1) from thermostat housing.
Drain, catch and dispose of coolant.
Use only recommended coolant. See RADIATOR -- OPERATING FLUIDS .
Observe mixture ratio. See RADIATOR -- OPERATING FLUIDS .
Observe CAPACITIES .
Observe bleeding instructions without fail.
FILL AND BLEED COOLING SYSTEM .
Visual inspection of cooling system for tightness.