[new] | W639 Workshop Manual

Mercedes-Benz Vito/Viano (W639) workshop manual is a comprehensive technical guide designed for both professional mechanics and DIY enthusiasts. It covers the second generation of these commercial vehicles (produced between 2003 and 2014), providing essential data for maintaining and repairing various engine types, including the 2.2L diesel and 3.2L/3.7L petrol V6 variants. Core Technical Content

3.2. Engine (Group 01–15)

• Mechanical: Complete tear-down of OM646 timing chain replacement (camshaft adjuster, tensioner). Cylinder head bolt sequence and angle-tightening.
• Injection System: CDI2 common-rail schematics (fuel pressure regulator, rail, injector coding). High-pressure pump timing.
• Turbo & Exhaust: Variable geometry turbo (VG) actuator calibration. Exhaust gas recirculation (EGR) valve removal.
• Cooling: Water pump (plastic impeller failure detection). Thermostat testing.

: This is a popular 208-page manual specifically for 2004–2010 models. It covers 2.2L diesel and V6 petrol engines. It is valued for providing step-by-step instructions derived from actual workshop practice, making it more practical for owners than standard factory texts. w639 workshop manual

The cost of a digital W639 workshop manual is often less than the cost of one hour of labor. If you use it to perform just one service interval or fix one sensor, it has paid for itself. Everything after that is money in your pocket. Mechanical : Complete tear-down of OM646 timing chain

If you own a Vito with OM642 V6 diesel:
You need the official WIS for oil cooler seal replacement – aftermarket manuals misrepresent the procedure. : This is a popular 208-page manual specifically