The PVC valve membrane is a common failure with the B58 Gen1 engine, especially on cars with upgraded turbos running a lot of power. This kit comes with everything you need to replace your broken PCV diaphragm without having to replace your entire valvecover.

OEM Valve Cover 11127645173 costs €440,- excl. VAT

OEM Membrane Repair Kit 11121025447 costs €148,- excl. VAT 

PCV Failure Symptoms:

• Misfires
  
• Rough Idle
• White Smoke Coming Out Exhaust
• Excessive Blowby (Oil in intake, chargepipe, etc)

Fits all Gen 1 B58. Does not fit B58TU (Gen 2)

OEM Valve Cover Part Number:
11127645173

• 1' F20 LCI (09/2015 - 06/2019) - M140i, M140iX
• 1' F21 LCI (09/2015 - 06/2019) - M140i, M140iX
• 2' F22 (09/2015 - 06/2017) - M240i, M240iX
• 2' F22 LCI (09/2016 - 12/2019) - M240i, M240iX
• 2' F23 (09/2015 - 06/2017) - M240i, M240iX
• 2' F23 LCI (10/2016 - 12/2019) - M240i, M240iX
• 3' F30 LCI (10/2014 - 10 Antalya - 340i, 340iX
• 3' F31 LCI (10/2014 - 06/2019) - 340i, 340iX
• 3' F34 GT LCI (09/2015 - 12/2019) - 340i, 340iX
• 4' F32 (04/2015 - 02/2017) - 440i, 440iX
• 4' F32 LCI (05/2016 - 12/2019) - 440i, 440iX
• 4' F33 (03/2015 - 02/2017) - 440i, 440iX
• 4' F33 LCI (05/2016 - 12/2019) - 440i, 440iX
• 4' F36 Gran Coupé (03/2015 - 02/2017) - 440i, 440iX
• 4' F36 Gran Coupé LCI (05/2016 - 12/2019) - 440i, 440iX
• 5' G30 (10/2015 - 06/2019) - 540i, 540iX
• 5' G31 (03/2016 - 06/2019) - 540iX
• 6' G32 GT (09/2016 - 06/2019) - 640i, 640iX
• 7' G11 (10/2014 - 01/2019) - 740i
• 7' G12 (10/2014 - 02/2019) - 740i, 740iX, 740Li, 740LiX
• X3 G01 (10/2016 - 07/2019) - M40iX
• X4 G02 (03/2017 - 07/2019) - M40iX