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DESCRIPTION
This hose connects from the bottom of the radiator to the thermostat. A leak in the cooling system can be particularly troublesome for your E39, which is why we recommend periodic replacement. Over time, rubber hoses can become hard, with the internal walls covered in sediment and the plastic fittings turning brittle or the internal o-rings simply leaking. A must replace hose for any 5-Series owner looking to preventive maintenance or restore their cooling system. We've found these Rein hoses to be the best quality. Manufactured by the original equipment supplier using BMW Genuine plastic hose connectors.
HELPFUL TIPS
Make sure you have enough coolant on hand before starting the job.
PART NUMBERS
Please note: Part numbers are provided for reference only. For correct compatibility to your vehicle, please follow our fitment advice