How To: E53 X5 Cooling System Overhaul (MUST-DO Service)

Today, we're tearing apart my 2003 E53 X5 in order to service the radiator, water pump, thermostat, and hoses, one of the major weak points on the M54 motor! We also find out what a "failed" water pump looks like, and why it's so important to service these components before they leave you stranded.

Parts (these are for 3.0L M54 models only)
Radiator - 17117544669 (automatic - 17107544668)
Expansion tank bracket (manual) - 17111438818
Expansion tank bracket (automatic) - 17111438819
Water pump - 11517509985
Thermostat - 11537509227
Upper Radiator Hose - 11537500733
Lower Radiator Hose - 11537508688
Lower Radiator hose temperature switch - 13621433077

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