Description
Factory Mercedes-Benz ML Class W166 Workshop Manual (2011-2015)
This factory-level workshop manual covers the W166-generation Mercedes-Benz ML Class, giving US technicians and home mechanics complete service and repair data for every major system on these trucks.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | M276 3.5L V6 (ML350), M278 4.7L V8 twin-turbo (ML400/ML550), M157 5.5L V8 biturbo (ML63 AMG) |
| Diesel | OM651 2.1L 4-cyl BlueTEC (ML250), OM642 3.0L V6 BlueTEC (ML350 BlueTEC) |
| Transmissions | 7G-TRONIC PLUS 7-speed automatic, 9G-TRONIC 9-speed automatic |
| Drive | 4MATIC all-wheel drive (standard) |
| Model Years | 2011-2015 |
| Badge Twins | W166 GLE Class (2015 transition models) |
Common ML Class Repairs Covered
| System | Procedures |
|---|---|
| Air Suspension / AIRMATIC | Strut replacement, compressor diagnostics, ride-height sensor calibration |
| OM642 BlueTEC Diesel | EGR cooler failure, injector seal replacement, AdBlue/SCR system service |
| Transfer Case & 4MATIC | Transfer case fluid change, front differential seal replacement, actuator diagnosis |
| Brake System | SBC/ESP module diagnostics, pad and rotor replacement, brake fluid flush procedures |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Does this manual cover the OM642 diesel EGR cooler-a notorious W166 failure point?
Yes. The OM642 3.0L V6 BlueTEC section includes full EGR cooler removal and replacement procedures, coolant system purging steps, and torque specs for reassembly. Diagnostic flowcharts for coolant loss and white smoke complaints are also included.
Does this manual cover the W166 GLE Class as well as the ML Class?
The manual is scoped to the W166 ML Class produced through 2015. Because the 2015 GLE shares the same W166 platform and carries over identical powertrains and most subsystems, much of the content applies directly-but GLE-specific trim and branding updates introduced at the 2015 facelift are not separately documented.
Are wiring diagrams and CAN bus schematics included?
Complete electrical coverage is provided, including engine management wiring, COMAND infotainment circuits, instrument cluster, body control modules, connector pinouts, ground point maps, and CAN/LIN network schematics for all W166 configurations covered.
What format is the manual?
The manual is a PDF file. After purchase you receive an instant download link and can re-download at any time. The file is fully searchable and compatible with Windows, macOS, iOS, and Android devices.
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