Mercedes Vito W638 Workshop Manual -

| Section | Details Covered | |--------|----------------| | | Timing chain replacement (M111), injector removal (CDI), oil pump disassembly | | Cooling system | Thermostat location, bleeding procedure, radiator fan testing | | Fuel system | In-tank pump, fuel filter priming (diesel), pressure specifications | | Transmission | Clutch replacement (manual), conductor plate replacement (automatic 722.6) | | Brakes | ABS sensor testing, rear drum brake adjustment (base models) | | Steering & Suspension | Lower ball joint replacement, steering rack removal, rear axle bushings | | Body | Sliding door roller replacement, tailgate lock adjustment, rust repair guidelines | | HVAC | Heater matrix flush, blower motor resistor location, A/C gas filling quantities | | Electrical | Fuse box diagrams (under seat and dashboard), window regulator wiring, immobilizer bypass protocols | | Technical data | VIN decoding, tightening torques, fluid capacities, glow plug resistance values |

Fuel delivery varies drastically between the early mechanical injection diesels, modern CDI units, and petrol variants. mercedes vito w638 workshop manual