17 00 005 Draining and adding coolant (N52, M57T2)
Special tools required:
- 00 2 030 . See 00 MAINTENANCE AND GENERAL INFORMATION - TIGHTENING TORQUES .
Only carry out work on the cooling system after the engine has cooled down!
If removing radiator, oil-coolant heat exchanger or transmission oil cooler, do not reuse drained coolant!
Installation:
Use only recommended coolant .
Observe mixture ratio (antifreeze/water).
Protective measures/rules of conduct:
- Wear protective 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 lifter).
Recycling:
Observe country-specific waste-disposal regulations.
Necessary preliminary tasks:
- Remove reinforcement plate
- Follow instructions for working on cooling system .
Draining coolant:
Open cap (1) on coolant expansion tank (2).
Installation:
Observe arrow marks on cap and expansion tank.
If fitted, release drain plug (1) on coolant radiator at bottom. On coolant radiators which do not have a drain plug, remove coolant hose.
Drain, catch and dispose of coolant.
Unfasten and detach coolant hose (1) from thermostat housing.
Drain, catch and dispose of coolant.
Adding coolant:
Use only recommended coolant .
Observe mixture ratio (antifreeze/water).
Installation:
Observe venting instructions without fail.
Vent cooling system .
Check cooling system for leaks.