Description
Factory Mercedes ML320 Workshop Manual (1998-2002)
This factory-level repair manual covers every service procedure for the first-generation Mercedes-Benz ML320 sold in North America from 1998 through 2002, including wiring diagrams, torque specs, and complete diagnostic routines.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | M112 E32 3.2L SOHC V6 (18-valve, ~218 hp) |
| Diesel | N/A |
| Transmissions | 722.6 5-speed automatic with 4ETS electronic traction control |
| Drive | 4WD (4MATIC) |
| Model Years | 1998, 1999, 2000, 2001, 2002 |
| Badge Twins | W163 M-Class platform (ML430, ML55 AMG share chassis) |
Common ML320 Repairs Covered
| System | Procedures |
|---|---|
| Timing Chain (M112) | Guide rail inspection, tensioner replacement, chain stretch diagnosis – a known W163 maintenance item |
| 722.6 Transmission | Valve body service, conductor plate replacement, torque converter removal and reinstallation |
| ABS / 4ETS | Wheel speed sensor replacement, ABS module diagnostics, 4ETS fault code interpretation |
| Cooling System | Water pump and thermostat replacement, radiator service, coolant flush procedures |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Why do W163 ML320 timing chain guides need attention?
The M112 E32 V6 uses plastic timing chain guide rails that become brittle over time, especially on high-mileage examples. Failure can allow the chain to jump, causing misfires or engine damage. This manual includes full removal and installation procedures, tensioner specs, and torque values to complete the repair correctly.
Does this manual cover other W163 M-Class variants like the ML430 or ML55 AMG?
The manual is specifically validated for the ML320 with the M112 3.2L V6. The W163 chassis sections – suspension, body, brakes, and electrical – apply broadly across the platform, but engine-specific and transmission-specific procedures are written for the ML320’s M112/722.6 drivetrain combination.
Are full wiring diagrams included for the US-spec ML320?
Yes. The manual contains complete circuit schematics covering engine management, ABS and 4ETS, climate control, central locking, lighting, and the instrument cluster, with connector pinouts, wire colors, and ground locations for North American specification vehicles.
What format is the manual?
This manual is a PDF, delivered via instant download after purchase. It is fully searchable, printable, and compatible with Windows, Mac, tablets, and smartphones. Your download link is available for life – re-download anytime.





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