BMW leakage test for the air intake system (X2 2018-2023)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2023 BMW X2, 2022 BMW X2, 2021 BMW X2, 2020 BMW X2, and 2019 BMW X2. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

81 29 0 426 464
81 31 2 353 954
2 409 665
2 358 459
0 426 464
2 353 954

Attention!

Excess pressure and vacuum lines can be recognized by the size of their fasteners and are color-coded blue and red respectively.

Identification:

Blue - overpressure line
Red - vacuum line

Excess pressure and vacuum lines must not be mixed up.

Mixing up the lines will result in engine damage.

Preliminary work needed:

Loosen the intake filter housing.
Prepare the diagnostic system
Start diagnostic program

Drive
Engine electronics
Air supply
Charging pressure control system or perception of lack of power

Ordering information:

applicable BMW Workshop Equipment - Start BMW
applicable BMW Workshop Equipment Catalog
Measurement equipment and testers
Service and diagnosis
Order number 81 29 0 426 464
Order number 81 31 2 353 954

Check air intake system for leak tightness:

Both clean air pipes must be closed using special tool 2 409 665 to ensure an accurate leakage test.

Connect the pressure hose (1) with special tool 2 358 459.

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Insert the blue overpressure line (2) into the pneumatic coupling (1) as far as it will go.

Connect the pressure lines with the diagnostic system and the Integrated Measurement Interface Box.

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Insert the blue overpressure line on the diagnostic system 0 426 464 into the connector (1).

Connect the Integrated Measurement Interface Box (1) with the connector of the diagnostic system via the vacuum hose (IMIB accessory) 81 31 2 468 782 (previously: 81 31 2 357 800 or 81 38 2 201 924).

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Installation note:

Follow diagnosis instruction.

Leak detection with BMW leak detector:

Disconnect the overpressure line (2) on the diagnostic system.

Connect the pressure line (1) from the BMW leak detector 2 353 954 to the overpressure line (2).

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Put the BMW leak detector 2 353 954 into operation according to the operating instructions.

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Observe the BMW diagnosis instructions.

Leaks in the air intake duct are detected by emerging smoke.