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DESCRIPTION
This hose connects the top of the radiator and the small flange on the expansion tank back to the thermostat. Over time, rubber hoses can harden, internal walls can accumulate sediment, and—most commonly on these—the plastic fittings may become brittle or develop leaks. Replacing this hose is essential for any E46 3-Series owner looking to maintain or restore their cooling system. We offer Meyle hoses—high-quality replacements featuring OE-quality plastic hose connectors.
HELPFUL TIPS
Read about the installation of this hose 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