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 at the return speed you chose at checkout — standard to overnight. 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 your choice at checkout — standard, 2-day, or overnight
- 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. Return shipping is selected and paid at checkout — Standard $14.95 (3–5 days), UPS 2-Day $29.95, or UPS overnight $74.95. 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.