17 00... Instructions for working on cooling system

WARNING: This page is about a different car, the 2005 BMW 530i, 2005 BMW 525i, 2004 BMW 530i, and 2004 BMW 525i. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Danger of scalding! Work on the cooling system should only be carried out when the engine has cooled down.

CAUTION: When working on the oil, coolant or fuel circuit, you must protect the alternator against contamination.
Cover alternator with suitable materials.
Failure to comply with this procedure may result in an alternator malfunction.

CAUTION: Open cooling system only when it has cooled down.
Opening the cooling system while hot can result in air entering the system.
This can cause overheating with permanent damage to the engine.

Recycling

Catch and dispose of drained coolant.

Observe country-specific waste-disposal regulations.

Instructions For Disassembly/Assembly Of Coolant Hose Fast-Release Couplings

Disassembly Of Fast-Release Coupling

Withdraw lock (1/2), disconnect hose.

Fig 1: Disconnecting Hose

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Check O-rings (1).

Do not coat O-rings (1) with antiseize agent.

Fig 2: Checking O-Rings

Courtesy of BMW OF NORTH AMERICA, INC.

Assembly Of Fast-Release Coupling

Press in lock (1) before installing fast-release coupling.

Push on hose.

Fast-release coupling must audibly snap into place.

Fig 3: Installing Fast-Release Coupling

Courtesy of BMW OF NORTH AMERICA, INC.