Overview
Bosch ME9.0 is a petrol engine management ECU used in selected Ford and Volvo 2.5-litre turbocharged five-cylinder vehicles. Ford also calls the unit the powertrain control module (PCM). The Ford Mondeo 2.5L workshop reference describes sequential multi-port injection, electronic throttle control and intake and exhaust variable cam timing.
In that application, the ECU uses sensor inputs to control fuel injection, ignition timing, throttle position and turbo boost. It also uses lambda and knock feedback, communicates with other modules over CAN and monitors emissions-related faults. Details and calibration vary by vehicle and software.
ECU photographs and BDM connection
These photographs show different example units, not necessarily the same ECU or PCB revision. Select any photograph to enlarge it.
Adapter names and layouts are tool-specific: the description “Siemens-type” is an observation about this example, not a universal pinout. The EVC BDM100 manual lists its own BDM143 adapter for a Volvo ME9 example. Confirm the exact ECU and PCB revision, probe, orientation, connections and power supply against the instructions for the tool being used. The photograph does not establish individual pin functions.
Example vehicles
The following are examples from the cited application lists, not a complete fitment list:
- Ford Focus ST Mk2 — 2.5-litre turbo ST / ST225, including HYDA applications.
- Ford Focus RS Mk2 — 2.5-litre turbo RS and RS500, including JZDA applications.
- Volvo C30 T5 — selected 2.5-litre turbo versions, including B5254T7.
- Ford Mondeo, S-Max and Kuga — selected 2.5-litre turbo versions.
- Volvo C70, S40 and V50 T5 — selected 2.5-litre turbo versions.
Engine, market and model year matter: other Focus and C30 versions use different engine management systems. Confirm the ECU fitted to the individual vehicle rather than relying on the model name alone.
Identification and tuning
Record the vehicle, engine and gearbox, Bosch and vehicle-manufacturer part numbers, and the complete hardware and software identification. Save an original read and match any definition, checksum support and read/write method to that exact ECU and tool version. Shared Ford and Volvo applications do not by themselves establish interchangeable files or map addresses.
Microcontroller and memory
Ford ME9.0 is documented with an MPC561; a tool application list groups Ford and Volvo ME9 examples as MPC561/562 with external flash. The exact MCU and memory fitted can vary, so check the board marking and ECU identification. These are MPC5xx PowerPC-ISA devices, a different architecture from Infineon TriCore. See the ECU microcontroller overview.
Sources: BitSoftware Ford Bosch ME9.0; MAGICMOTORSPORT MAGPro2 BDM MPC5xx list; NXP MPC561/MPC563 reference manual.
Sources
Curated reference notes. Applicability follows the cited sources; hardware testing by this wiki is not implied.
- Ford Mondeo 2.5L Duratec: electronic engine controls overview. Ford workshop information, independent online mirror; describes the Mondeo 2007.5 2.5L Duratec application. Source revision Mondeo 2007.5, section 303-14D; online version as accessed; accessed 2026-11-10.
- Microtronik HexProg Ford ME9.0 vehicle applications. Microtronik, Ford ME9.0 model and version list. Source revision online version as accessed; accessed 2026-11-10.
- Alientech car application list: Ford and Volvo. Alientech vehicle application list, independent PDF mirror; Ford Focus and Volvo vehicle entries. Source revision Auto Car 2016 application list, Ford Focus and Volvo C30, C70, S40 and V50 entries; accessed 2026-11-10.