For a 2003 BMW 530i, it is recommended to use a BMW-approved coolant, specifically the BMW Antifreeze/Coolant (part number 82141467768) which is a mix of ethylene glycol and water. This coolant is designed to provide optimal protection against corrosion and overheating. Ensure you mix it with distilled water in a 50:50 ratio for best performance. Always check your owner's manual for specific recommendations and guidelines.
BMW CCA Foundation was created in 2002-03.
check your manuel
how to remove the plastic ignition coil cover on a series 3 bmw e46 reg 03
Most all engines have block drains for coolant. If they are reasonably accessible or not is the probelm.
They made Google for a reason.
driver's side of the motor, serviced from below the car.
It's no cage it means either low coolant or to have the coolant system checked
you may want to check your coolant level.
9 quarts of full synth. oil
Not without serious modification
Maybe low coolant level
One could start by pricing an engine at Bavarian Motor Recycling in Rancho Cordova California. Worlds largest BMW parts liquidators, I think.