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BMW MINI Cooper CAS module fault — MINI Cooper R-series CAS/EWS immobilizer fault

BMW diagnostic code. Below: what it means, common causes, symptoms, and the exact bench-programming fix path.

Common causes

  • •EWS/CAS module failure
  • •Key-pairing data loss
  • •Failed coding

Symptoms you'll see

  • •Crank-no-start MINI
  • •IMMO warning on cluster
  • •Cluster sometimes blank

The fix path

Same path as full-size BMW. R50/R53 → EWS Delete. R55-R59 (CAS) → CAS Key Programming.

AML services that fix this

Mail in the affected module, we bench-program, typically ship back next business day. Flat pricing, flat-rate return shipping at checkout.

BMW CAS Module Key Programming (2006-2012)

$150

Lost every BMW key, or the car stopped recognizing the one you have? Ship your CAS module — we program a new working key. Covers CAS2, CAS3, CAS3+, CAS4, CAS4+ — on CAS3+ and CAS4+ ship the DME with the CAS, the new key's ISN is read from it.

Service details

BMW DME EWS Delete (MS41/42/43/45, MSS50-70)

$250

Swapped DME cranking but never firing? Plug-and-play EWS delete for BMW M52/M54/S54/S62/S65 DMEs — ship your DME, get it back IMMO-off with the EWS check removed.

Service details

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Related diagnostic codes

P1570Engine Start Blocked by ImmobilizerP0513Incorrect Immobilizer KeyFRM/FRM3 not detectedBMW FRM/FRM3 Footwell Module unresponsiveEWS-DME comm errorEWS module not authenticating with DMECAS-DME comm errorCAS module unable to authorize startBMW E46 cluster pixel lossBMW E38/E39/E46 instrument cluster pixel dropouts

Not sure which service applies?

Text us your year/make/model + which scanner caught the code — we'll tell you exactly which module to ship and which service to pick.

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