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DESCRIPTION
This sensor mounts to the lower radiator hose, and is very common place for leaks to appear, especially if it's been re-installed into a new hose. The fan switch controls the operation of the electric auxiliary fan, depending on the temperature of the coolant. This high-quality replacement comes complete with a new o-ring.
HELPFUL TIPS
Coolant leaks that appear to be coming from a failing lower radiator hose are often due to this little sensor. Read about the installation of this fan switch on our very own E46 by clicking here.
PART NUMBERS
Please note: Part numbers are provided for reference only. For correct compatibility to your vehicle, please follow our fitment advice