Coolant: Service and Repair

17 00 005 - Draining off and topping up coolant (M54)





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!





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 radiator cover Removing Radiator Cover
- Remove engine underbody protection Removing and Installing / Replacing Front Underbody Protection
- Remove reinforcement plate Service and Repair
- 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.





Illustrations show E85:

Open drain plug (1) on engine block.

Drain, catch and dispose of coolant.

Installation Note:
Replace sealing ring.

Tightening torque 11 11 5AZ 11 11 Engine Block.





Adding coolant:

Use only recommended coolant.

Observe filling capacities Radiator and Mounting Parts M52TU/M54.

Observe mixture ratio.

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

Check cooling system Component Tests and General Diagnostics for leaks.