If these are not new Water pump, thermostat and rubber connecting hose, belts and pulleys, valve cover & gasket, oil filter housing gasket, oil cooler gasket. Front seal protection plate. "Micky Mouse" connector on the hose going to the head Changed from plastic to aluminum. Transmission fluid & filter. Check all power steering hoses for leaks. Plugs and coil packs. That should get you started. I'm sure somebody will catch everything I missed.

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2021 X5 xDrive40i
2015 X5 xDrive35i MSport
(Traded) 2013 X5 xDrive35i