17 00 005 Draining and topping up coolant (N47)
Special tools required:
WARNING:
Risk of scalding!
Only carry out repair work on the cooling system after the engine has cooled down!
Only carry out repair work on the cooling system after the engine has cooled down!
IMPORTANT:
Lifetime coolant filling:
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.
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
IMPORTANT:
For dirt contamination of the cooling system (e.g. by engine oil), the cooling system must be rinsed with water until all dirt contamination is removed!
IMPORTANT:
Risk of skidding due to coolant on the floor.
Danger of injury!
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 tasks:
- Follow notes for CARRYING OUT REPAIR WORK ON THE COOLING SYSTEM .
- Remove UNDERBODY PROTECTION
- Remove intake silencer housing . See REMOVING AND INSTALLING/REPLACING INTAKE SILENCER HOUSING (N47) or REMOVING AND REFITTING/REPLACING INTAKE FILTER HOUSING (N47 WITH SCR) .
Draining coolant:
Open sealing cap (1) on coolant expansion tank.
Installation note:
Close sealing cap (1) until the arrow marks line up.
Unlock and detach coolant hose (1) from radiator at top.
Unfasten and detach coolant hose (1) from the coolant thermostat.
Drain, catch and dispose of coolant.
NOTE:
Adding 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.
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.