Coolant: Service and Repair

17 00 005 Draining and adding coolant (M57T2)

Special tools required:





Warning!
Risk of scalding!
Only carry out repair work on the cooling system after 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 partial quantities of coolant, replace these quantities which have been drained with new coolant.

Installation Note:
Use only recommended coolant.

Observe mixture ratio.





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!

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:
^ Remove acoustic cover
^ Remove reinforcement plate





Open the sealing cap (1) on the coolant expansion tank.





Important!
Protect turbocharger against coolant.
Cover the exhaust turbocharger with suitable auxiliary materials (risk of damage).





Illustration shows E65:

Release screws (1).

Unclip line (2).

Detach intake pipe (3) in direction of arrow.

Important!
Risk of damage!
Cover opening on turbocharger without fail.

E83:
If fitted, release coolant drain plug (1) on radiator. For radiators without a coolant drain plug, unlock the coolant hose and remove.








E60:
If fitted, release coolant drain plug (1) on radiator. For radiators without a coolant drain plug, unlock the coolant hose and remove.





1Loosen coolant drain plug (1) on engine block.

Installation Note:
Replace gasket.

Tightening torque 11 11 5AZ.

Open the bleeder screw (1).








Adding coolant:
Use only recommended coolant, refer to BMW Service Operating Fluids HG17.

Fill and bleed cooling system.

Check cooling system for watertightness.