11 53 000 Removing and installing/replacing coolant thermostat (N52)

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:

17 2 052 .

WARNING: Risk of scalding.
Only perform this work after engine has cooled down.

Recycling:

Catch and dispose of drained coolant in a suitable container.

Observe country-specific waste disposal regulations.

Necessary preliminary work:

Remove SUSPENSION CROSS-BRACE .
Drain COOLANT .

IMPORTANT: Risk of damage.
Coolant emerges when the coolant hoses are detached from the coolant thermostat.
Cover surrounding components and plug connections with suitable apparatus

Unlock snap fastener on coolant hose (3).

Detach coolant hose (3) and lay to one side.

Disconnect plug connection (4).

Installation note:

plug connection (4) must snap audibly into place.

Fig 1: Identifying Snap Fastener, Coolant Hose, And Plug Connection

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Release spring band clamp (1) with special tool 17 2 052 .

NOTE: Coolant hose (3) is removed together with coolant thermostat.

Release spring band clamp (2) with special tool 17 2 052 .

Detach coolant hose (3) and lay to one side.

Unlock snap fastener on coolant hose (1).

Detach coolant hose (1) and lay to one side.

Fig 2: Identifying Spring Band Clamp And Coolant Hoses

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Release screw (1).

IMPORTANT: Risk of breakage.
The mounting of coolant thermostat (2) (not shown) may break if removed incorrectly.

Slide coolant thermostat (2) together with coolant hose (4) approx. 4 cm in direction of arrow from holder (3).

Lift out coolant thermostat (2).

Fig 3: Removing Coolant Thermostat

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Release spring band clamp (5) with special tool 17 2 052 .

Detach coolant hose (4).

Installation note:

Pre-install coolant hose (4) on coolant thermostat (2).

Slide mounting (3) of coolant thermostat (2) into holder at position (1).

Fig 4: Identifying Spring Band Clamp, Coolant Hose, Thermostat, And Mounting

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Assemble engine.

FILLING AND BLEEDING COOLING SYSTEM .

Check function of cooling system.