11 53 000 Removing and installing/replacing coolant thermostat (S62)

WARNING: This page is about a different car, the 2003 BMW Z8, 2002 BMW Z8, 2001 BMW Z8, and 2000 BMW Z8. However, it is still accessible from the selected car via links, so may be relevant.

Drain off and dispose of coolant, refer to 17 00 005 DRAINING AND ADDING COOLANT (S62) .

Remove intake filter housing upper section with air-mass flow sensor, left and right.

Release hose clamps (1) on left and right water hoses.

Detach left and right water hoses (2) from thermostat housing.

Fig 1: Detaching Water Hoses From Thermostat Housing

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1) on coolant temperature sensor.

Release screws (2). Remove connecting piece (3).

Fig 2: Removing Connecting Piece

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: VANOS oil lines remain connected.

Loosen screws (1).

Fig 3: Removing Thermostat

Courtesy of BMW OF NORTH AMERICA, INC.

Remove thermostat housing (2) with thermostat.

Withdraw thermostat from thermostat housing.

Installation:

Replace O-rings (1) on connecting pipes.

Fig 4: Installing O-Rings

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace sealing ring (1).

Note installation position of thermostat (2).

Fig 5: Installing Sealing Ring

Courtesy of BMW OF NORTH AMERICA, INC.