Ultimate Mercedes-Benz M103 Engine Guide
Mercedes-Benz produced the M103 E26 and E30 inline-six motors from 1985–1996, and they were extremely successful. The M103s powered everything from the high performance 300SL to the G-Wagon, and came in 2.6 or 3.0 liters in displacement. Over the years, the M103 engine proved itself to be very reliable and solid, with only a few…