BMW F-Series Used DME Programming + ISN Match Service (N20 / N26 / N55 / S55 / S63N)
Pair a used DME to your F-chassis BMW — CAS/FEM/BDC ISN match for N20/N26/N55/S55/S63N MEVD172 family.
BMW F-Series 2011-2018 with N20 / N26 / N55 / S55 / S63N engine + MEVD172 family DME
How It Works
Three simple steps. Hundreds of mail-in jobs completed for shops, locksmiths, and DIY pros.
Pay & Get Address
Click "Order Now", pay securely via Stripe. We email shipping address + instructions within minutes.
Ship Your Module
Pack per the instructions and ship to our Arlington workshop. USPS or UPS — your choice. Customer pays shipping to us.
Receive in 1-2 Days
Work completed within 24 hours of receipt. Ships back next business day. Return shipping included, tracking emailed.
What You Get
- Used donor DME programmed to YOUR vehicle's ISN
- Plug-and-play — no further coding required at install
- CAS/FEM/BDC stays in your vehicle (we just read the ISN)
- Full bench-test with your supplied working key
- 24-hour bench turnaround
- Return shipping included
- Photo of completed bench-test before return ship
Compatibility
Confirm your part matches one of the variants below before ordering. Not sure? Text us a photo and we'll verify.
2-Series (F22/F23/F87)
3-Series (F30/F31/F34/F80)
4-Series (F32/F33/F36/F82/F83)
5/6/7-Series (F07/F10/F12/F13/F01/F02)
X-Series (F25/F26/F15/F16)
DME variants supported
Will This Fix My Problem?
Honest answer: here's exactly what this service fixes — and what it doesn't.
Fixes:
- ✓Used DME installed from eBay/salvage — engine cranks but won't start
- ✓Donor DME ISN doesn't match your CAS/FEM/BDC
- ✓P1614 / P1570 codes after a DME swap
- ✓Failed engine — want to swap to a known-good used DME and have it work
- ✓BMW dealer wants $800+ to program a used DME
Won't fix:
- ✗Pre-CAS E-chassis cars (E36/E39/E46/E53/early E60) — see our EWS Delete service
- ✗CAS4/CAS4+ ISN issues unrelated to a DME swap — see CAS Key Programming
- ✗New DME from BMW (those come pre-coded by the dealer)
- ✗M-DCT transmission ISN faults (separate service)
Why we need BOTH the DME and the CAS/FEM/BDC
The MEVD172 DME family stores an ISN (Individual Serial Number) that must match the ISN stored in the vehicle's CAS (pre-2013) or FEM/BDC (2013+). On an F-chassis BMW, we can't just write any ISN to the DME — we have to READ your specific CAS/FEM/BDC's stored ISN first, then write it to the donor DME. That's why we need both modules shipped together. After we're done, both modules go back to you and reinstall plug-and-play.
Shipping Instructions
These details are also emailed to you the moment your payment clears.
You pay shipping to us. We cover return shipping back. Pack BOTH modules together with padding between them.
What to include in your box
- The used donor DME (typically engine bay, under plastic cover)
- Your vehicle's CAS module (2011-2012) OR FEM/BDC module (2013+)
- AT LEAST ONE working key
- Printed order confirmation
- VIN + engine code (N20, N55, etc.) on the included slip
- Your name, return address, and phone number
Ship to
Auto Module Lab
1168 W Pioneer Parkway
Arlington, TX 76013
Frequently Asked
Still have a question? Text us — replies in minutes.
How is this different from your EWS Delete service?
How is this different from FEM/BDC Key Programming?
Do I need to remove the CAS/FEM/BDC from my car?
What if the used DME is from a different model (e.g., 328i donor for my 335i)?
Will the donor DME's mileage transfer to my car?
After the work, will the car still need a workshop coding session?
Related Services
Other bench services for the same brand or use case.
BMW CAS Module Key Programming (2006-2012)
Ship your BMW CAS module — we program a new working key. Covers CAS2, CAS3, CAS3+, CAS4.
BMW FEM/BDC Key Programming
Ship your BMW FEM/BDC module AND DME — we program a new working key.
BMW DME EWS Delete (MS41/42/43/45, MSS50-70)
Plug-and-play EWS delete for BMW M52/M54/S54/S62/S65 DMEs. Ship your DME, get it back IMMO-off and ready to start.
Where we serve BMW F-Series Used DME Programming (N20/N26/N55/S55/S63N)
Mail-in means nationwide. See your state, metro, or specific vehicle:
Ready to ship?
Pay now, get the shipping address by email, drop it in the mail. Your module is back on your bench within a week.