64 11 200 Removing and installing/renewing heating unit

WARNING: This page is about a different variant/trim than selected.

Notes

WARNING: Avoid contact with refrigerant and refrigerant fluid.
Follow safety information for HANDLING R 134A TETRAFLUORETHANE REFRIGERANT .
Follow safety information for HANDLING REFRIGERANT FLUID .

Necessary preliminary work

Unlock and detach coolant lines (1).

Carefully blow through twin pipes to remove remaining coolant from heater core.

Slacken nut (2).

Tightening torque 64 11 4AZ .

Disconnect refrigerant lines (3).

Installation note:

Replace sealing rings.

Use special tool 00 9 030 to install sealing rings without damaging them.

Fig 1: Identifying Refrigerant Lines, Coolant Lines With Gasket And Mounting Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Ensure gasket (4) is correctly seated.

VENT COOLING SYSTEM and check for watertightness.

Remove holder (1).

Remove heater (1) with a 2nd person helping.

Installation note:

Heater is held by support for dashboard.

When installing support for dashboard, make sure heater is in correct position.

Fig 2: Identifying Heater With Holder

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Make sure heater is correctly seated on condensate drain (1).

Fig 3: Identifying Condensate Drain

Courtesy of BMW OF NORTH AMERICA, INC.