Bosch Me20 | Pinout Verified !new!

If you’ve spent any time working on late-90s to mid-2000s European vehicles—especially —you’ve likely crossed paths with the Bosch ME20 engine control unit (ECU).

Place the module on a non-conductive ESD mat. Connect Grounds: Secure the negative lead to Plug 1, Pin 4. Connect Constant Power: Attach +12V to Plug 1, Pin 2. bosch me20 pinout verified

: Requires a stable ground connection, usually identified on standard ECU pinout guides K-Line (Communication) If you’ve spent any time working on late-90s

Note: Pin numbering layout can vary slightly depending on the exact Mercedes-Benz chassis (e.g., W210 E-Class vs. W163 ML-Class). Always look for the tiny molded numbers inside the plastic housing of the ECU male connector pins to verify your positioning. 🛠️ Step-by-Step Bench Connection Procedure bosch me20 pinout verified