Description
Factory Mercedes E Class E320 CDI Workshop Manual (2003–2009)
This is the official factory-level service manual for the W211-platform Mercedes-Benz E320 CDI, covering every procedure a US technician or DIY owner needs to maintain and repair this diesel executive sedan or estate.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | N/A |
| Diesel | OM648 3.2L inline-six CDI |
| Transmissions | 5-speed automatic, 7G-TRONIC 7-speed automatic |
| Drive | RWD |
| Model Years | 2003–2009 |
| Badge Twins | N/A |
Common E320 CDI Repairs Covered
| System | Procedures |
|---|---|
| OM648 Fuel Injection | Common-rail injector removal, coding, and leak-off testing; high-pressure pump service |
| EGR & Intake | EGR valve cleaning and replacement; intake manifold swirl flap inspection (known failure point on OM648) |
| 7G-TRONIC Transmission | Fluid and filter service, conductor plate replacement, adaptation reset procedures |
| Suspension & Steering | Airmatic strut diagnosis and replacement, front control arm bushing renewal, steering rack service |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
What is the known intake swirl flap issue on the OM648 engine?
The OM648 3.2L CDI uses intake manifold swirl flaps that can crack or break free, sending plastic fragments into the engine. This manual covers inspection, swirl flap removal, and manifold replacement procedures to address this well-documented failure before engine damage occurs.
Which chassis platform does the W211 E320 CDI share?
The E320 CDI rides on Mercedes-Benz’s W211 platform, which underpins the entire 2003–2009 E-Class range including sedan (W211) and estate/wagon (S211) body styles. Both variants are fully covered by this manual.
Are wiring diagrams and ABS/ESP electrical circuits included?
Yes. The manual contains detailed circuit diagrams for engine management, 7G-TRONIC controls, ABS, ESP, climate control, and body electronics — complete with wire colors, connector pinouts, and ground locations to support accurate electrical diagnosis.
What format is the manual?
This manual is delivered as a PDF file. It is fully searchable, compatible with any standard PDF reader on Windows, Mac, or mobile devices, and individual pages can be printed for bench use.
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