Cooling System Overhaul Kit, OEM - E46 M3

OEM water pump, thermostat, radiator and hoses for a full system refresh

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Our Stage 1 OEM Cooling System Overhaul Kit for E46 M3 includes all the common preventative maintenance parts to keep your cooling system from failing at an inconvenient time. Unlike our Stage 2 and 3 upgrades, this kit consists of cost-efficient OEM and Genuine BMW replacement components for a 1:1 swap of your stock system. This overhaul service typically needs to be performed at 80-100,000 miles with stock parts due to normal wear and tear of water pump bearings and plastic fatigue on the radiator tanks.

Kit Contents:
17102228941, Genuine BMW radiator
11537830716, Rein upper radiator hose
11537830715, Rein lower radiator hose
13621433077, Rein coolant temp sensor
07129952119, OEM hose clamp (x2)
17112229053, Genuine radiator vent hose
17117639022, Behr expansion tank cap
11517838118, Genuine BMW water pump (original composite impeller)
11517831099, Genuine BMW water pump gasket
11537830709, Genuine BMW cooling pipe o-ring
11537830712, Genuine BMW cooling pipe o-ring
11531318274, Wahler thermostat with o-ring

WYIT: This is not all of the parts that could be replaced in the E46 M3 cooling system. There are several other "While You're In There" parts that can also be replaced, including belts, pulleys, fan & clutch, expansion tank, and possibly more. Contact us if you would like to discuss additional parts to possibly include.

Coolant: we do not include coolant/antifreeze in this package even though fresh fluid is required. We do sell BMW coolant, and other brands, but due to shipping costs you may want to source your own coolant locally. Remember to mix coolant with distilled water.

BMW Fitments:

3 Series
E46 (01-06) > M3
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