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17 00 025 Draining And Topping Up Coolant For Electrical Machine Electronics (N55 hybrid car)

WARNING: This page does not describe the selected car, but rather 50 other vehicles, including the 2016 BMW M5, 2016 BMW ActiveHybrid 5, 2016 BMW 550i xDrive, 2016 BMW 550i, and 2016 BMW 535i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required: 

WARNING: High-voltage system - danger to life!
The following points must be strictly observed prior to starting work: 
WARNING: Risk of scalding!
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.
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!

Installation note: 

Use only recommended coolant .

Observe mixture ratio .

Protective measures/rules of conduct: 

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.

Fig 1: Supporting Coolant Drip Tray Using Special Tool (00 2 030)
G05476170Courtesy of BMW OF NORTH AMERICA, INC.

Necessary preliminary work: 

Draining coolant: 

Release sealing cap (1) on coolant expansion tank for electrical machine electronics.

Installation note: 

Close the sealing cap (1) until the arrows line up.

Fig 2: Sealing Cap On Coolant Expansion Tank
G09918087Courtesy of BMW OF NORTH AMERICA, INC.

Unlock coolant hose (1) from electrical machine electronics and pull off.

Drain, catch and dispose of coolant.

Fig 3: Coolant Hose From Electrical Machine Electronics
G09918088Courtesy of BMW OF NORTH AMERICA, INC.

Adding coolant: 

Use only recommended coolant .

Observe mixture ratio .

Fill and bleed COOLING SYSTEM  for electrical machine electronics.

Assemble engine.

Check cooling system of electrical machine electronics for leaks.

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