Genuine OEM 11657607727 - Vacuum Line

Product Overview

This Genuine OEM 11657607727 vacuum line is engineered to OEM specifications for BMW vehicles equipped with 2.0L turbocharged four-cylinder engines. The vacuum line is a critical component of the engine management system, routing pressurized air and vacuum signals between the engine, intake manifold, and emissions control components. This part fits BMW F10 5 Series sedans (528i models, 2012–2016) and F25/F26 X3 and X4 crossovers (2013–2017), ensuring factory-correct fitment and reliability. As a Genuine OEM part, it meets BMW's original specifications and is backed by manufacturer quality assurance.

This vacuum line is sold individually. Verify the routing diagram in your service manual to ensure correct installation.

Symptoms of a Failing Vacuum Line

• Check Engine Light (CEL) or diagnostic trouble codes related to fuel trim, oxygen sensor, or emissions control
• Rough idle or hesitation during acceleration
• Hissing or whistling sounds from the engine bay, indicating a vacuum leak
• Difficulty starting or stalling when cold
• Reduced fuel economy or uneven running
• Vacuum-operated component malfunction (brake booster, EVAP purge, secondary air injection)

Cross Reference Numbers

This Genuine OEM 11657607727 is equivalent to the following part number: 1165760727.

Vehicle Compatibility

This part fits the popular models below. For Fitment Confidence, please use the vehicle selector tool above to verify exact compatibility for your vehicle.

• BMW 528i 2.0 L4 Gas (F10): 2012–2016
• BMW 528i xDrive 2.0 L4 Gas (F10): 2012–2016
• BMW X3 sDrive28i 2.0 L4 Gas (F25): 2015–2017
• BMW X3 xDrive28i 2.0 L4 Gas (F25): 2013–2017
• BMW X4 xDrive28i 2.0 L4 Gas (F26): 2015–2017

This may also fit other applications. Please use the vehicle selector tool to verify fitment.

Often Replaced Together

For a complete vacuum system service, many owners replace the following at the same time:

• Additional vacuum lines and connectors in the engine bay
• Vacuum hose clamps and routing clips
• Intake manifold gasket (if vacuum leak symptoms are present)
• Fuel injector seals and O-rings

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Frequently Asked Questions

How do I know if my BMW 528i or X3 has a vacuum line leak?

A failing vacuum line typically causes a Check Engine Light, rough idle, or a noticeable hissing sound from the engine bay. You may also notice hesitation during acceleration or difficulty starting. Use a smoke test or visual inspection under the hood to locate the source of the leak. Cracks, splits, or loose connections on the vacuum line are the most common culprits.

What is the purpose of a vacuum line in a BMW engine?

Vacuum lines route negative pressure signals from the intake manifold to various engine control and emissions components, including the fuel pressure regulator, brake booster, EVAP purge valve, and secondary air injection system. A properly functioning vacuum line ensures accurate engine management and emissions control.

Can I drive with a cracked or leaking vacuum line?

Driving with a vacuum leak is not recommended. A leaking vacuum line disrupts the air-fuel mixture, causing poor engine performance, increased emissions, and potential damage to oxygen sensors and catalytic converters. Replace the line as soon as you suspect a leak.

How do I install a replacement vacuum line on my BMW F10 or F25?

Locate the failed line in your engine bay using the routing diagram in your service manual. Disconnect the line from both connection points, remove any retaining clips, and install the new line in the same path. Ensure all connections are tight and the line does not contact hot surfaces or moving parts. A basic socket set and hose clamps may be required depending on your specific routing.

Is this a Genuine BMW part?

Yes, this is a Genuine OEM vacuum line manufactured to BMW specifications. It is the original equipment part used by BMW dealerships and is backed by OEM quality standards. Choosing a Genuine OEM part ensures compatibility and long-term reliability.

What engine sizes does this vacuum line fit?

This vacuum line is designed for BMW vehicles equipped with the 2.0L turbocharged four-cylinder engine (B48 platform, 2012–2017 model years). Verify your engine displacement and model year before ordering to ensure correct fitment.

Order Genuine OEM 11657607727 today. In-stock orders ship same or next business day from our U.S. warehouse, and our fitment team is one call away if you need help confirming the right part for your BMW.

Note: All information on this page and in the FAQ is for general reference only. Verify fitment and consult a professional as needed. eEuroparts.com is not responsible for incorrect part selection or installation.