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Video of donor car showing signs of heavy use check pictures
Up for sale is a complete, matched OEM DME (ECU), CAS3 immobilizer module, key fob, and full mechanical lock cylinder set removed from a 2007 BMW 335i.
If your 335i has a failed MSD80 DME (common transistor/injector MOSFET failure), a corrupt CAS module, or lost key issues, this complete matched set allows you to swap everything directly without needing expensive dealership coding or ECU cloning.
ELECTRONICS-ONLY FITMENT (135i / 535i Buyers):
The DME, CAS3, and Remote Fob WILL electronically start 2008 135i (E82) and 2008 535i (E60) N54 models. However, the physical door/trunk lock cylinders will NOT fit. If purchasing for a 135i or 535i, you are purchasing the electronics set only
Included Components:
- MSD80 Engine Control Unit (DME): Part # 7538634
- CAS3 Immobilizer Module: Part # 6943831
- Key Fob: Factory-matched to DME & CAS
- Complete Mechanical Lock Set: Driver door cylinder, glovebox cylinder, and trunk cylinder (all matched to the included physical key blade)
Condition: Used OEM BMW original parts. Carefully removed from a running 2007 BMW 335i. All items inspected prior to listing.
100% Guaranteed Compatibility List
This complete set is a direct Plug-and-Play match for the following vehicles equipped with the N54 3.0L Twin-Turbo Engine and MSD80 DME:
ModelChassisProduction YearsEngineBMW 335i / 335xi SedanE902007 – 03/2008N54 3.0L Twin TurboBMW 335i / 335xi CoupeE922007 – 03/2008N54 3.0L Twin TurboBMW 335i ConvertibleE932007 – 03/2008N54 3.0L Twin TurboCritical Compatibility RequirementsProduction Date Check: Vehicles produced after 03/2008 updated to the MSD81 DME. Ensure your vehicle has an MSD80 DME and CAS3 before ordering.
- Complete Installation Required: You MUST install the DME, CAS, and Key Fob together as a complete set. Mixing components with your original modules will prevent the engine from starting.
Strict Terms of Sale & No-Return Policy
Due to the electrical and programmable nature of automotive control modules, this item is sold AS-IS with NO RETURNS. Electrical components can easily be damaged by improper installation, pre-existing short circuits in the buyer's vehicle, or testing. Please verify part numbers (DME 7538634 / CAS 6943831) against your original units prior to purchasing.
