M56 Billet Aluminum Cap & Disk

This started as a one-off prototype to resolve BMW’s lack of enthusiasm to make a replaceable cover for the CCV on its aluminum fancy valve cover that came on the M56 engines (SULEV). As more and more people were interested, we decided to make a batch of 20 caps. Those 20 caps, turned out to become 300+.

Now I take orders and make mini batches of 5 or more caps/disks for enthusiasts around the world. 5 is the minimum number required by my machinist to keep the price as it is, as they’re labor intensive.

Just informative, the cap is made in, and shipped from, Cyprus. Cyprus is a small island in the Mediterranean sea, not to be confused with Cypress in Jacksonville Florida. The postal services system is electronic and has mandatory fields: Name, Surname, Street, Postal/Zip, City, District, Country. Please make sure these info are supplied either in e-mail or via PayPal to avoid delay!

** Aug. 02 Update: No caps available at the moment as my machinist is closed for summer holidays. We will be able to take new orders for another batch after August 28. **

Option #1: M56 CCV Aluminum cap and retaining disk, with regular tracked mail (10-15 Days average delivery time): $145

Option #2: M56 CCV Aluminum cap and retaining disk, with DHL Express Shipping (3-4 Days Delivery time): $195 but as DHL changes pricing due to fuels every month, if there is significant deviation I will inform before shipping.

Leave a comment below if you’re interested!

Installation instructions: Around 30 degrees counter-clockwise using a 27mm socket is enough to secure the cap in place. Use it in conjuction with OE membrane (if not torn) and spring. Aftermarket membranes also work wonderfully. Note that the membrane is NOT included with the kit, you will need to either use your existing one or order it online. I just show the membrane in the photos for illustration purposes.

Installation video:

Photos:

More pictures:

One of the latest batches (Nov. 2021)

More reading head over to E46Fanatics.com:

https://www.e46fanatics.com/threads/custom-m56-cap-discussion-aluminum-3d-printed-etc.1263119/

90 Comments

  4. Interested in getting a cap and diaphram for a m56 valve cover swap im planning on doing for my m54 touring. Located in the usa zip code 33952 Florida to be more specific. I don’t have an account on the fanatics website but very active on the e46 fanatics Facebook group if they’re connected

    Reply

  5. Hi, just a mini update, since there are enough interested people, I have placed production for another batch of caps today (27/09) and should be ready within the next 7-8 days.

    Reply

    1. Hi, I’m very interested in the cap. Especially since I just broke mine. Please let me know what I need to do next.

      Reply

  7. Hello i am in need of a new cap. I bought one 2 years ago off e46fanatics from another member who made some but it recently has failed.

    Reply

  9. Hi I would really like to purchase the ccv cap for the m56 valve cover.
    Great innovation on your behalf and and a saviour for us Bmw enthusiasts.
    Mine is on an m54 engine and works great but planning on keeping this car for life .
    Just completed a full engine rebuild and this would be the iceing on the cake.

    Reply

  20. Hi there, very interested in the cap as well! Looking forward to the product! Let me know what I need to do.

    Maryland, USA

    Reply

  22. Interested in ordering at least 2 kits for myself. I’m also thinking I could order some extra to stock for others in the USA.

    Reply

  29. Hi, I am interested in a cap/disk. Your creation is of great value to me. Please let me know when available.

    Reply

  35. Greetings, I am interested in a cap as well. I’m in the USA, Washington state, zip code 98503

    Reply

  39. From the US, East Coast. Definitely want to buy one of these, my brother in law bought a 325ci and wasn’t aware of that the M56 valve cover was swapped on.

    Reply

  40. Hello, i really need one of these on my car its broken and dosen’t work anymore its my only car i can’t drive nowhere, is there anyway i can get one ? please let me know how i can purchase it its so bad without a car and i can’t afford a new car. Thank you <3

    Reply

  43. Hello, I would very much be interested in one of these in the next batch as a USA customer. Thank you

    Reply

  44. Hello! I recently picked up an m56 valve cover and am really Interested in doing the swap into my m54. I saw your post about the billet cap and was immediately intrigued. I would like to purchase one. I’m from Ca, USA.

    Reply

  45. Hi Paraklas,
    Found the link for your website on the E46 Fanatics forum. I have been wanting one of these caps for some time, I have unfortunately been unable to send you a message directly having not posted on there enough times. I definitely would like to be added to the next batch that you order. Let me know the payment details.
    Cheers Scoot

    PS loving the 8 speed automatic gearbox conversion

    Reply

  48. I currently have a m56 vc and would like to purchase your serviceable cap mod. Is there a payment link and tracking available?

    Reply

  52. Hey paraklas I’m interested in purchasing one of your aluminum M56 caps. Just need to know what you have available and where I can send payment. Thanks best regards

    Reply

  54. Sorry if this is a duplicate message, yesterday’s attempt didn’t seem to post. Anyway, I am in Massachusetts and would like one of the next available batch. Where do I send $$?
    Thanks,
    Doug

    Reply

  56. Hello, I’m very interested in buying a cap. Please contact me with info on how to order and pay. Thank you.

    Reply

  71. Interested in buying the m56 valve cover cap. Please share your info and details for purchasing.
    Thanks

    Reply

  73. I am super interested in buying a valve cover cap. Please share whenever you are doing another run!

    Reply

  74. Hello, I am very interested in purchasing a cap if there is availability. Please let me know, thanks! 🙂

    Reply

  77. Hi in desperate need of this cap if you could get back to me as soon as possible if you have any availability best regards- Christian

    Reply

  78. Hello, I just discovered your product and would like to purchase one of your aluminum cap and disk or the E46 M56 aluminum valve cover. Please let me know how to buy this from you. I live in the United States in Florida. I would be interested in your option 1, regular tracked mail, for the shipping. Thank you!

    Reply

  84. I’m in the US and need one of these caps. Please put my name on the list for the next run. Happy to even pay up front.

    Reply

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