Keep proper pressure in your coolant system
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Keep proper pressure in your coolant system
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Stationed in-line with the heater core feed hoses, this piece houses the 2-pin temp sensor
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Blue sensor used by the ECU to control engine fueling
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Keep proper pressure in your coolant system
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Located behind water pump housing
Blue sensor used by the ECU to control engine fueling
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Tests all ethylene glycol solutions with radiator hot or cold
Hose that connects to the bottom of your expansion tank.
Replacement cap for your broken or lost piece
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Located behind water pump housing
Replacement cap for your broken or lost piece
2X Entries Into Our F80 M3 Sweepstakes
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Replacement cap for your broken or lost piece
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This product was last offered at the strikethrough price on
08-23-2026
Commonly broken plastic piece.
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Located behind water pump housing
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Commonly broken plastic piece.
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