(11531272853) - Hose-Upper Radiator (tropical) - 520i (E28 Euro with M20 engine) (Genuine BMW) (4 available)

Upper Radiator Hose for a Euro spec 520i  (with 6-cyl M20 engine) (tropical market with air conditioning) - these must have been shipped to me in error years ago.  These can likely be cut and modified for other "large flow" applications.  Quality genuine BMW hose. (gar2-Y7)

Strict Factory Restrictions - Even if you own a European-market E28 520i, this hose will only fit if your vehicle was configured from the factory with the following two build options:

1. Air Conditioning (S530A): The car must be equipped with an active, factory-installed A/C loop.
2. Tropical Version / Hot-Climate Zone (S823A): The car must have the special option package intended for warmer regions. 

This specific combination required a unique water routing system that bypassed the standard thermostat-to-expansion-tank configuration used on baseline European or colder-climate models.