Hello Everyone,

I have searched and not found any info topics on our e28 coolant system. If there is and missed it, I apologize for this unnecessary Post. That being said here we go!

I plan this weekend to refresh my ENTIRE cooling system on my 1987 535is and have ALL BMW parts on-hand. My "Original" all metal radiator sprung a small leak. I will be repairing it and storing it away since they are no longer available/and for back-up.

My needed suggestions is "What am I missing" . MOST IMPORTANT: Is there anything else I should check/or replace for preventative measure since I will have pretty much the front engine exposed. Thanks to all who reply. I will be taking photos of my entire work for documentation.

New Parts on-hand:

Radiator
Water pump
Expansion Reservoir Tank
Fan Clutch
ALL rubber hoses that carry coolant (Too many to list)
Thermostat
Thermostat Housing
Thermostat Cover
Hose Clamps 25-40mm & 40-60mm
Coolant Temp Sensor (Blue)
Coolant Temp Sensor for Gauge
Engine Cooling Fan Resistor
Engine Cooling Fan Sensor (91 degrees) White
Engine Cooling Fan Sensor (99 degrees) Red
BMW Radiator Cap
Distilled Water for flush/mixture
Blue/Greenish BMW Coolant
New Radiator mount bushings, washers, bolts


Thanks!