M111 /M112 Alternators

The alternator on a Mercedes-Benz M111 2.0L/2.3L Inline-4 engine (found in models like the W202 C-Class, W203 C-Class, W210 E-Class, and R170 SLK) is a highly durable unit, typically rated between 90 to 120 Amps depending on the specific model and options. Because it is positioned low on the engine block, it is highly vulnerable to external fluids leaking into it.