Original BMW Intake Port Vacuum Adapter for Walnut Blasting, BMW 335d and X5 xDrive35d (2009–2013)

This Original BMW vacuum adapter is a service tool for the 2009–2011 BMW 335d and the 2009–2013 X5 xDrive35d. It connects a shop vacuum to the cylinder head intake port so the walnut shell media can be drawn out during carbon cleaning on the M57N2 diesel engine. Walnut blasting cleans carbon deposits from the intake ports by blasting crushed walnut shell at them. The adapter is used with a shop vacuum to remove the walnut shell media from the intake port. The adapter is the part that seals the vacuum to the port for that step, and it is used with a media blasting machine. Made in Germany.

Original BMW Parts carry a 24-month parts warranty.

This piece is shop equipment and is not installed on the car. It is used during the service and then put away. It is meant to work with the swirl port design of the M57N2 head on these two diesel models, and it is sold individually.

Technical Details

• Manufacturer: BMW (genuine part)
• Part number: 81-29-2-356-966
• Function: vacuum adapter for the swirl port, cylinder head adapter for media blasting
• Use: removes walnut shell media from the intake port during carbon cleaning
• Engine: M57N2 diesel
• Made in Germany
• Sold individually
• Warranty: 24 months on Original BMW Parts

Common Questions

Does this adapter stay on the engine?
No. It is used with a shop vacuum during carbon cleaning.

What engine is it intended for?
It is intended for the M57N2 diesel in the 335d and X5 xDrive35d.

Fitment & Compatibility

Check the table below for the exact year, model, submodel, and any listed notes. PMB Performance has spent over 20 years matching parts to vehicles and can verify this against your VIN.