Radiator & Hose Package, CSF - E82 135i, E9X 335i (N54 6MT)

Package includes -

17117558480, CSF aluminum radiator
17127540127, Vargas silicone upper radiator hose
17127565094, Vargas silicone vent hose
17127564480, Vargas silicone lower radiator hose
17117639020, OEM expansion tank cap

This upgrade package includes an aluminum radiator and associated silicone hoses for 2007-2010 E82 135i and E9X 335i models with manual transmission.

Avoiding a blown radiator and overheating is one of the best ways to ensure long life for your N54 engine. We find a preventative approach is best on the E9X cooling system. If one critical part fails (like your radiator) it will likely shorten the lifespan of the other related items, and the labor to change one or two critical cooling components is nearly the same to overhaul the entire cooling system. This is an all-aluminum radiator that is a direct replacement for the original stock radiator. All hoses, fan, fan shroud, and hardware will transfer over to the aluminum radiator. Without the plastic end tanks and hose necks, this aluminum version will be much more reliable over the long term.

This package includes the primary hoses attached to the radiator. We advise replacing hoses whenever possible because the o-ring inside is the most common source of leaks when hoses are re-used. With the radiator and hoses together you can ensure all connected parts are new and fresh. This package uses black silicone hose with CNC aluminum connectors. The silicone is much stronger and more durable than the original rubber. Black is the default color, but we can also send blue or red hoses (call or email).

Other items like the thermostat, electric water pump, and other hoses can also be replaced depending on the scope of your project. Coolant is also sold separately but adds shipping cost.

Top Tip: inspect the area below the valve cover and above the belt for signs of a coolant leak. A plastic flange running from the top of the cylinder head to the thermostat is a common source of coolant leaks. Coolant leaking onto the belt is a major problem! If your plastic flange is leaking an aluminum replacement is available (see Related Items below).

BMW Fitments:

1 Series
E82 / E88 (08-10) > 135i
3 Series
E90 / E92 / E93 (07-10) > 335i
E90 / E92 / E93 (11-13) > 335is
E90 / E92 / E93 (07-10) > 335xi