Electrical gremlins are common in vans of this era. Without a wiring diagram, finding a short circuit or a faulty relay is like looking for a needle in a haystack. The manual helps you navigate:
Use labeled bins or magnetic trays. Reassembling a W638 interior involves many similar-looking screws that are not interchangeable. mercedes vito w638 workshop manual
Diagnosing common CDI (Common Rail Diesel Injection) issues in the later 108, 110, and 112 models. Electrical gremlins are common in vans of this era
Always use jack stands and proper PPE. The Vito is a heavy vehicle; never rely on a floor jack alone. mercedes vito w638 workshop manual
Great for keeping in the van for roadside emergencies.
Exploded views of parts to help you identify exactly what needs replacing. Engine and Drivetrain Coverage