Description
Factory Mercedes M Class ML450 CDI 4Matic Workshop Manual (2009-2011)
This official workshop manual gives US technicians and serious DIYers complete factory-level service data for the W164-chassis ML450 CDI 4Matic, covering everything from routine maintenance to full drivetrain overhauls.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | N/A |
| Diesel | OM629 4.0L V8 twin-turbocharged CDI (~306 hp / 516 lb-ft) |
| Transmissions | 7G-Tronic 7-speed automatic |
| Drive | 4Matic permanent AWD |
| Model Years | 2009-2011 |
| Badge Twins | N/A |
Common ML450 CDI Repairs Covered
| System | Procedures |
|---|---|
| OM629 Turbocharger | Twin-turbo inspection, boost leak diagnosis, intercooler service, turbo replacement torque specs |
| 7G-Tronic Transmission | Fluid and filter replacement, conductor plate diagnosis, valve body service, adaptation reset |
| Air Suspension (AIRMATIC) | Compressor replacement, strut/air spring R&R, height sensor calibration, leak-down testing |
| AdBlue / SCR Emissions | DEF injector cleaning, NOx sensor replacement, SCR catalyst inspection, fault code diagnosis |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Is the OM629 V8 diesel turbocharger system fully documented?
Yes. The manual provides complete coverage of the twin-turbocharger assembly on the OM629 4.0L V8, including boost pressure specifications, intercooler inspection procedures, turbocharger removal and installation torque values, and step-by-step fault diagnosis for boost-related DTCs common on W164 ML450 CDI models.
Does this manual cover the W164 chassis platform in detail?
Absolutely. The W164 platform underpins the ML450 CDI, and this manual addresses all W164-specific systems including the AIRMATIC air suspension, 4Matic transfer case, ESP/ABS integration, and body structure repair procedures relevant to the 2009-2011 production run.
Are wiring diagrams and COMAND electrical schematics included?
Yes. Full electrical documentation is provided, covering engine management, 4Matic AWD controls, ABS/ESP, COMAND infotainment, climate control, and body electronics. Each diagram details connector locations, wire colors, pin assignments, and ground points to support systematic fault finding.
What format is the manual?
This manual is a PDF file, fully searchable and compatible with any PDF reader on PC, Mac, tablet, or smartphone. After purchase you receive an instant download link, and your access for re-downloading is available for life.





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