Maintaining the record-breaking performance of the hand-built 2.0-litre turbocharged M139 engine in your W177 Mercedes A45 or A45S AMG requires uncompromising attention to routine servicing. Outputting 387bhp in standard A45 trim and an astonishing 421bhp in the A45S, this highly stressed four-cylinder powerplant demands premium lubrication and filtration. We streamline your garage schedule with comprehensive Service Kits and high-grade Engine Fluids tailored to the M139 platform. Ensure your motor oil and cabin remain free of contaminants using premium Service Filters, and guarantee flawless combustion under extreme cylinder pressures with our specialized replacement Spark Plugs.