Introduction
Mercedes-Benz vehicles are engineered with meticulous precision. Servicing them requires more than general mechanical knowledge—it demands exact factory repair procedures, specific torque specs, and authentic part numbers.
WIS/ASRA Explained
The Workshop Information System (WIS) and Arbeitstexte, Richtzeiten und Arbeitswerte (ASRA) form the core dealership database:
- WIS: Contains step-by-step disassembly guides, wiring diagrams, torque figures, and safety warnings for every Mercedes-Benz model.
- ASRA: Provides official operation times and labor units used by dealership service departments worldwide.
EPC Explained
The Electronic Parts Catalog (EPC) provides complete exploded assembly drawings. It allows you to trace every nut, bolt, sensor, and body panel directly to its OEM part number, ensuring perfect replacement ordering.
Supported Models
From classic W124 and W140 chassis to modern C-Class, E-Class, S-Class, and Sprinter vans, WIS/ASRA and EPC cover the full spectrum of Mercedes-Benz engineering.
Get Full Workshop Access
Access the complete dealership workshop database directly on your system: Mercedes-Benz WIS, ASRA & EPC Full Version Download.