Coolant: Service and Repair

17 00 005 - Draining and adding coolant (N52/M57T2)





Special tools required:
- 00 2 030 00 2 030 Universal Hydro-Lifter Basic Unit





Warning!
Danger of scalding!

Only carry out work on the cooling system after the engine has cooled down!





Important!
Lifetime coolant filling:

If removing radiator, oil-coolant heat exchanger or transmission oil cooler, do not reuse drained coolant!

Installation Note:
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





Important!
Risk of slipping due to coolant on the floor.

Danger of injury!

Catch and dispose of drained coolant in drip tray (1) and if necessary special tool 00 2 030 00 2 030 Universal Hydro-Lifter Basic Unit (universal hydraulic lifter).

Recycling:
Observe country-specific waste-disposal regulations.





Necessary preliminary tasks:
- Remove reinforcement plate
- Follow instructions for working on cooling system 17 00 ... Instructions For Working on Cooling System.





Draining coolant:

Open cap (1) on coolant expansion tank (2).

Installation Note:
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 filling capacity Coolant, Cooling System Test.

Observe mixture ratio (antifreeze/water).

Installation Note:
Observe venting instructions without fail.

Vent cooling system 17 00 039 Venting Cooling System and Checking For Leaks.

Check cooling system for leaks.