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Integral Coolant Expansion Tank

WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, 2001 BMW X5, and 2000 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Remove radiator. See 17 11 000 Removing and installing radiator (M62, M54 and M57)  .

  1. Prepare approx. 2 liters of cleaning agent.
  2. Fill radiator and coolant expansion tank and shake well. Wait a few minutes until oil has separated.
  3. Drain radiator and coolant expansion tank.
  4. Reinstall cleaned radiator and if necessary coolant expansion tank.
  5. Fill entire cooling system (heating control to "warm") with hot water and thoroughly flush by changing water several times.
  6. Check drained flushing fluid for traces of oil. If necessary, repeat Procedure 5.

After cleaning procedure, top up coolant.

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