BMW X5 Owners & Service Manuals

BMW X5: Instructions For Working On Cooling System

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

IMPORTANT: Wear protective gloves and goggles.

IMPORTANT: Lifetime coolant filling: Never reuse used coolant.

When replacing and removing components which rely on the corrosion protection effect of the coolant, it is essential to change the coolant. The cooling system must therefore be drained and refilled.

In the case of other removal work involving the draining of partial quantities of coolant, replace these quantities which have been drained with new coolant.

IMPORTANT: 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.

IMPORTANT: When working on the oil, coolant or fuel circuit, protect the alternator against contamination.

Cover alternator with suitable materials.

Failure to comply with this procedure may result in an alternator malfunction.

IMPORTANT: Do not fill coolant expansion tank over MAX level as overfilling will cause the coolant to overflow. This may give rise to traces of residual coolant on the expansion tank or in the engine compartment and wrongly suggest possible leakages.


Catch and dispose of drained coolant.

Observe country-specific waste-disposal regulations.

NOTE: Tightening torque, hose clamps.

Coolant Checking Cooler Line
Fig. 1: Identifying Hose Clamps

Instructions for disassembly/assembly of coolant hose fast-release couplings

Disassembly of fast-release coupling

Withdraw lock (1/2), disconnect hose.

Coolant Checking Cooler Line
Fig. 2: Identifying Withdraw Lock


Check O-rings (1).

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

Coolant Checking Cooler Line
Fig. 3: Identifying O-Rings

Assembly of fast-release coupling

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

Push on hose.

Fast-release coupling must clearly snap audibly into place.

Coolant Checking Cooler Line
Fig. 4: Identifying Lock


 Draining And Adding Coolant In Radiator (N52K)

WARNING: Danger of scalding! These tasks on the cooling system should only be carried out on an engine that has cooled down! IMPORTANT: Wear protective gloves and goggles. IMPORTANT: Lifetime coolant

 Radiator, Expansion Tank

CHECKING COOLING SYSTEM FOR WATER LEAKS Special tools required: 17 0 101 17 0 100 TESTER 17 0 113 17 0 100 TESTER 17 0 114 17 0 100 TESTER WARNING: Danger of scalding! Only perform this work afte

 Engine Radiator


 Removing And Installing / Replacing Master Brake Cylinder For DSC

Special tools required: 32 1 27032 1 270 PLUGS (SET) Necessary preliminary tasks: Remove expansion tank. Read and comply with General Information. After completing tasks, bleed brake system with DSC. IMPORTANT: Do not bend brake lines. Unfasten brake lines (2). Unclip retaining bar (1) and r

 Removing And Installing/Replacing DSC Yaw Sensor

IMPORTANT: Read and comply with notes on protection against electrostatic damage (ESD protection). IMPORTANT: Do not kink floor panelling under any circumstances! Necessary preliminary tasks: Remove right front seat. Lift floor panelling and fold back to one side Remove floor inlay (2). Unfas

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