Genuine 17127599452 Engine Coolant Hose - Expansion Tank (Upper) To Upper Radiator Hose
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Genuine

Genuine 17127599452 Engine Coolant Hose - Expansion Tank (Upper) To Upper Radiator Hose

Brand Genuine 17127599452
Position Expansion Tank (Upper) To Upper Radiator Hose
Fits BMW · 14 vehicles

Engine coolant hose for reliable coolant flow.

$109.27Free shipping
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BMW Engine Coolant Hose 17127599452

This Genuine engine coolant hose, part number 17127599452, routes coolant between the expansion tank upper connection and the upper radiator hose. It is a direct-fit cooling system hose for select BMW models, including BMW X1, BMW 135i, BMW 335i, and BMW 335i xDrive.

Key Features

  • Genuine OEM-style engine coolant hose for cooling system service
  • Fits the expansion tank (upper) to upper radiator hose vent line location
  • Direct application for select 2011-2015 BMW models
  • Part number 17127599452 for accurate ordering and replacement
  • Compatible with BMW X1, BMW 135i, BMW 335i, and BMW 335i xDrive applications

Detailed Description

Use this Genuine coolant hose to replace the vent line that connects the upper expansion tank area to the upper radiator hose. The hose is specified for BMW cooling system layouts where a secure, properly routed coolant passage is needed to maintain normal circulation and venting. If you are replacing a leaking or deteriorated BMW coolant hose, 17127599452 provides the correct fitment for the listed vehicles and position.

This part cross-references no additional part numbers in the provided data. Fits 2013-2015 BMW X1, Expansion Tank (Upper) To Upper Radiator Hose; Fits 2011-2013 BMW 135i, Expansion Tank (Upper) To Upper Radiator Hose; Fits 2011-2013 BMW 335i, Expansion Tank (Upper) To Upper Radiator Hose; Fits 2011-2013 BMW 335i xDrive, Expansion Tank (Upper) To Upper Radiator Hose.

Common Replacement Reasons

  • Coolant seepage at the vent line connection
  • Cracking, hardening, or swelling of the hose material
  • Loss of proper coolant routing between the expansion tank and radiator hose
  • Visible wear from heat cycling in the engine bay
  • Service replacement during BMW cooling system repair

Installation Notes

Confirm the part number and vehicle application before installation. Inspect adjoining hose ends, clamps, and plastic fittings for wear or damage, and replace any compromised components during cooling system service. After installation, refill and bleed the cooling system according to BMW procedures to help prevent trapped air.

Quality Assurance

Genuine parts are built to match the specified OE application for the listed BMW fitments. Part number 17127599452 is identified for the exact cooling system position shown above.

Related reading

This part fits 14 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypePositionNotes
2015BMWX1xDrive35i—Expansion Tank (Upper) To Upper Radiator HoseVent Line
2014BMWX1xDrive35i—Expansion Tank (Upper) To Upper Radiator HoseVent Line
2013BMW135i——Expansion Tank (Upper) To Upper Radiator HoseVent Line
2013BMW335i—ConvertibleExpansion Tank (Upper) To Upper Radiator HoseVent Line
2013BMW335i—CoupeExpansion Tank (Upper) To Upper Radiator HoseVent Line
2013BMW335i xDrive—CoupeExpansion Tank (Upper) To Upper Radiator HoseVent Line
2013BMWX1xDrive35i—Expansion Tank (Upper) To Upper Radiator HoseVent Line
2012BMW135i——Expansion Tank (Upper) To Upper Radiator HoseVent Line
2012BMW335i—ConvertibleExpansion Tank (Upper) To Upper Radiator HoseVent Line
2012BMW335i—CoupeExpansion Tank (Upper) To Upper Radiator HoseVent Line
2012BMW335i xDrive——Expansion Tank (Upper) To Upper Radiator HoseVent Line
2011BMW135i——Expansion Tank (Upper) To Upper Radiator HoseVent Line
2011BMW335i——Expansion Tank (Upper) To Upper Radiator HoseVent Line
2011BMW335i xDrive——Expansion Tank (Upper) To Upper Radiator HoseVent Line