BMW E9x CAS warning light stuck — E90/E91/E92/E93 CAS warning indicator won't clear
BMW diagnostic code. Below: what it means, common causes, symptoms, and the exact bench-programming fix path.
Common causes
- •Latched CAS DTC after repair
- •Cluster reset incomplete
- •Donor cluster installed
- •Failed coding
Symptoms you'll see
- •CAS light steady
- •Vehicle starts OK but warning persists
- •Cluster reports IMMO state mismatch
The fix path
BMW CAS Key Programming ($150) re-syncs the CAS-cluster-DME state. Alternatively, Instrument Cluster Repair + Mileage Sync ($200) if cluster is the source of the latched flag.
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)
$150Lost 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 detailsInstrument Cluster Repair + Mileage Sync
$200Pixel repair, dead cluster recovery, mileage sync after replacement — all makes, all models.
Service detailsBrand deep-dive
All BMW services + chassis coverage
Skip the per-service hunt — see every BMW module we program in one page.
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 dropoutsNot 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.