Genuine OEM 11747797129 - Vacuum Line

Product Overview

This Genuine OEM 11747797129 vacuum line is designed for BMW diesel and gasoline engines across multiple model generations. The vacuum line serves as a critical connector in the engine management and emissions control systems, routing vacuum signals between the intake manifold, brake booster, charcoal canister, and various control modules. This part fits BMW 2 Series, 3 Series, 4 Series, 5 Series, 7 Series, and X3, X4, X5 models from 2009 to 2021, including diesel variants (xDrive35d, xDrive28d, 328d, 535d, 740Ld) and hybrid models (xDrive40e, 740e iPerformance). Genuine OEM parts ensure factory-specification fitment and are backed by BMW's quality standards.

Cross Reference Numbers

This Genuine OEM 11747797129 is equivalent to or replaces the following part numbers: 11-74-7-797-129, 1174779712911747797129.

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 2 Series Coupe 230i 2.0 L4 Gas (F22): 2017–2018
• BMW 3 Series Sedan 320i 2.0 L4 Gas (F30): 2017–2018
• BMW 3 Series Sedan 328d 2.0 L4 Diesel (F30): 2014–2018
• BMW 3 Series Sedan 330i 2.0 L4 Gas (F30): 2017–2018
• BMW 3 Series Sedan 330i GT xDrive 2.0 L4 Gas (F34): 2017–2019
• BMW 4 Series Coupe 430i 2.0 L4 Gas (F32): 2017–2020
• BMW 4 Series Convertible 230i 2.0 L4 Gas (F23): 2017–2020
• BMW 4 Series Gran Coupe 430i 2.0 L4 Gas (F36): 2017–2020
• BMW 5 Series Sedan 535d 3.0 L6 Diesel (F10): 2014–2016
• BMW 5 Series Sedan 540d xDrive 3.0 L6 Diesel (G30): 2018
• BMW 7 Series 740e xDrive iPerformance 2.0 L4 PHEV (G11): 2017–2019
• BMW 7 Series 740Ld xDrive 3.0 L6 Diesel (G11): 2015
• BMW X3 xDrive28d 2.0 L4 Diesel (F25): 2015–2017
• BMW X3 xDrive30i 2.0 L4 Gas (G01): 2018–2019
• BMW X4 xDrive30i 2.0 L4 Gas (F26): 2019
• BMW X5 xDrive35d 3.0 L6 Diesel (E70): 2009–2013
• BMW X5 xDrive35d 3.0 L6 Diesel (F15): 2014–2018
• BMW X5 xDrive40e 2.0 L4 PHEV (F15): 2016–2018

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

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Frequently Asked Questions

What does a vacuum line do on a BMW, and why does it fail?

Vacuum lines route negative pressure signals from the intake manifold to operate the brake booster, emissions control components, heating and ventilation systems, and various solenoids. Over time, vacuum lines crack, split, or disconnect due to heat exposure, engine vibration, and rubber degradation. A failing vacuum line can cause rough idle, vacuum leaks, brake booster malfunction, check engine light illumination, and poor fuel economy.

How do I know if my BMW 3 Series, 5 Series, or X5 vacuum line is damaged?

Common signs include a hissing sound from the engine bay, a soft or spongy brake pedal (indicating brake booster vacuum loss), a rough or hunting idle, stalling at stops, illuminated check engine light, and increased fuel consumption. You may also notice difficulty in climate control operation or a noticeable vacuum leak when the engine is running.

Is this a direct replacement for my BMW diesel model?

Yes. This Genuine OEM 11747797129 vacuum line is engineered to the exact factory specification for BMW diesel engines, including the 2.0 L4 diesel (328d, xDrive28d) and 3.0 L6 diesel (535d, xDrive35d, 740Ld) variants. It is the same part that BMW dealerships install during factory service and repair.

How long does a vacuum line typically last?

Vacuum lines are subject to continuous heat and vibration from the engine. Most OEM vacuum lines last between 60,000 and 100,000 miles, though premature failure can occur if the line is routed near a heat source or damaged by contact with other components. Regular inspection during routine maintenance helps catch deterioration early.

Can I replace just one vacuum line, or do I need to replace multiple lines?

You can replace individual vacuum lines as needed. However, if multiple lines show signs of age or cracking during inspection, replacing them all at once reduces the likelihood of repeat failures and simplifies future troubleshooting.

What tools do I need to replace this vacuum line?

Replacement typically requires basic hand tools such as a socket set, screwdrivers, and pliers to disconnect hoses and secure fasteners. A vacuum hose clamp tool or hose removal tool can help disconnect stubborn connections. Consult your service manual for the exact routing diagram and connection points specific to your model year.

Order Genuine OEM 11747797129 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.