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Home >> BMW >> 2014 >> M5 Standard Trans >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine - Variable Valve Timing Control System (VANOS), Intake Plenum, Turbocharger, Water Pump, Thermostat, Coolant Lines, EGR Valve, EGR Cooler, Oxygen Sensors - Repair >> Thermostat And Coolant Lines >> N52 Engine >> 11 53 000 Removing and installing/replacing coolant thermostat (N52)

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

Special tools required: 

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: 

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
G09925020Courtesy of BMW OF NORTH AMERICA, INC.

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
G09925021Courtesy of BMW OF NORTH AMERICA, INC.

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
G09925022Courtesy of BMW OF NORTH AMERICA, INC.

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
G09925023Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

FILLING AND BLEEDING COOLING SYSTEM .

Check function of cooling system.

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