The intake cam wiring and pigtail are under the intake. It can be reached without removing the intake though. The head coolant sensor is between cylinders 5/6. It's under the intake. The lower radiator hose also has a fan activation switch. It's inserted. So with an empty coolant line, it's a good time to replace it too. Only an o-ring holds in place for a leak to happen. A new o ring will also work there.

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'06 X5 3.0i - bought @143,123 miles (12/26/20)