7078 (17118672103), main engine radiator
17127604542, upper radiator hose
17127627104, lower radiator hose
17128570061, radiator vent hose to expansion tank
17127609160, vent hose clips (x2)
17118625447, remote auxiliary radiator
17127853793, radiator transfer hose
This package includes an aluminum CSF radiator and OEM aux radiator with associated hoses for 2016-2018 F87 M2. If you have a coolant leak from one or both radiators it might be wise to overhaul the entire radiator system and replace both plus the hoses. You do not always have to replace hoses but there's enough parts in this kit that it feels like a big overhaul. Since the bumper may come off to do this job it's best to service the whole system to avoid duplicating work.
CSF uses new technology packed into a compact two-row design for better cooling capacity without the added weight. More efficient B-tubes have greater surface area for cooling (15% cooling capacity increase in fin technology alone) and a precision multi-louvered fin to increase heat rejection performance and surface area contact. Additionally, this CSF part has more total cooling tubes, and a three-pass flow design for maximum cooling in race environments and extreme driving conditions. These technical features all contribute to improved cooling efficiency over OE-type performance upgrades, as well as other standard "performance" aluminum tanked radiators which are nothing more than aluminum tanks on a traditional stock core. No permanent modifications required to fit this radiator - it works with all of your factory cooling and A/C components.
There are several additional items you should consider at the same time:
Heat Exchanger/Thermostat Hose (17122409077
). This is a complicated hose with multiple connections - oil heat exchanger, thermostat, aux radiator, and heater core inlet. It's a large hose that is not as simple to replace so we made it optional. Now would be the best time to replace it but we'll leave it up to you. See Related Items below.
Coolant is sold separately - see links below.
Tip: check the right side oil cooler as well for leaks.
BMW Fitments:2 Series
F87 (16-18) > M2