Original BMW Expansion Tank Coolant Hose for BMW X3 and X4 30i (2018–2019)

Original BMW hose 17-12-7-535-536 is the coolant hose for the expansion tank on the 2018–2019 BMW X3 and 2019 BMW X4 with the 30i engine. BMW places it in the heat management module group of its parts data, so it belongs to the coolant routing around that module. BMW began supplying this number in August 2017, when the G01 X3 entered production. It is made in Mexico and sold as a single hose. An expansion tank hose lets coolant move between the reservoir and the pressurized cooling circuit as the engine heats and cools, so it goes through constant temperature and pressure cycles over its life.

Original BMW Parts carry a 24-month parts warranty.

BMW's parts data applies this hose to three chassis: the G01 X3, the G08 X3, and the G02 X4. In those cars it covers the B46 and B48 four-cylinder engines. Check your exact trim and year in the fitment table before ordering. A hose that is cracked, leaking, swollen, or generally deteriorated is ready for replacement.

Technical Details

• Manufacturer: BMW (Original BMW part)
• Part number: 17-12-7-535-536
• BMW part name: hose for expansion tank
• BMW parts group: heat management module
• Production start: August 2017
• Made in Mexico
• Sold as: one hose
• Warranty: 24-month parts warranty on Original BMW Parts

Common Questions

Which engines does this hose cover?
BMW applies it to the B46 and B48 four-cylinder engines in the G01 X3 and G02 X4. Our fitment covers the 30i trims shown above.

Is this the hose BMW uses on these models?
Yes. This is an Original BMW part under the number BMW has supplied for these models since August 2017.

Fitment & Compatibility

Use the table below to verify the year and submodel for your build. Send your VIN and PMB Performance will confirm the fit, drawing on more than 20 years in the trade.