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RB BMW N54 PCV Valve (135i & 335i)


  • £47.51
    exc. VAT £39.59
  • 16

Rob Beck Replacement PCV Valve

Available for N54 twin turbo

You may also wish to upgrade the BMW N54 Rob Beck PCV Valve Screw-on Cap.


Replace your worn out original valve with this direct replacement to eliminate a potential boost leak in higher horsepower applications.It is an upgraded replacement PCV valve for your N54 Engine and is strongly recommended for your high performance (or higher mileage) N54.

The OEM plastic PCV valve does not hold pressure well even when brand new. What the leaky PCV valve means is that when you are in boosted conditions, the "highly" pressurised PCV valve leaks turbocharged pressures into the crankcase. Pending on the condition of your PCV valve it could leak worse than others. Also if for some reason your valve cover is cracked, loose, or has a bad gasket; you also could develop a pressure leak either external to the engine or internal into the crankcase causing further pressurisation of the crankcase or other oil loss issues.


  • The solution will only fix the OEM PCV valve itself and not a leaky valve cover gasket, which is also a very common problem on the N54 Engine. We do recommend if EVER pulling off the valve cover to always replace the OEM gasket with a new one and use a light amount of high quality sealant around these pressurisation ports that are fed through each intake port.
  • The RB PCV Valve solution will not negate the Pro's of Oil Catch Cans, but could reduce what they otherwise collect. It also could be reasoned that those who catch a TON of oil have a less "healthy" internal valve cover PCV valve or PCV systems, or alternatively engines that produce excess blowby.
  • The RB PCV uses only Genuine OEM core PCV Valves offering the absolute best performance and quality.


Compatibility Check

To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout. 



Fits all N54 twin turbo engine

E82/E81 135i

E90/E91/E92/E93 335i

E60/E61 535i

E89 Z4 35i


Free Next Day Delivery

Order before 11am for free next day UK delivery! We can also ship worldwide, simply enter your full address during checkout including the correct postal code for a shipping quote.



Rob Beck do not offer warranty on this item.


Manufactured by

Rob Beck (RB)


Part Number




23cm x 17cm x 5cm




Customer Reviews

4.9 Based on 16 Reviews
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Rob French

RB PCV upgrade for E89 35i

I bought and fitted this a year ago after needing to replace my valve cover. Removing the rear fuel rail section made the install relatively simple. I had to remove some of the plastic veins from inside my stock screw on cap - I see MLP now sell the RB cap as well. No problems after a year! This was my first purchase from ML Performance and it gave me the upgrade bug! I've not had a bad experience with them, happy to keep coming back for more.



I bought this as a preventive replacement. Great fitting, no issues. Fast shipping as usually.

United Kingdom United Kingdom

Easy fit

Easy to fit seams to work well


Perfect customer experience!

The part itself was good quality and perfect for the job it's intended. In addition, I have to give an A++ for Marshall for his amazing speed of deliveries, his friendly and helping attitude and the way everything works so nice with him and ML Performance. I've ordered several parts from him and everytime the result is the same, A++. Deliveries to Finland can almost be calculated in hours and the package always has contained his personally written thank you letter! I think this is a very nice finishing touch for keeping the customer feeling special. I hope brexit does not try to come between us! Thank you and have a nice summer!

Michael H.
United Kingdom

Great service, excellent customer support.

Excellent discription and speedy delivery as always.