Description
Factory Mercedes R Class R320 4Matic Workshop Manual (2014–2017)
This official factory-sourced service manual gives US technicians and R320 4Matic owners complete repair and maintenance coverage for the W251-platform luxury tourer, spanning all 2014 through 2017 model years.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | N/A |
| Diesel | 3.0L V6 CDI (OM642) ~224 hp / 540 Nm |
| Transmissions | 7G-Tronic 7-speed automatic |
| Drive | 4Matic permanent AWD |
| Model Years | 2014–2017 |
| Badge Twins | N/A |
Common R Class Repairs Covered
| System | Procedures |
|---|---|
| OM642 Diesel Engine | Swirl flap actuator replacement, EGR valve cleaning, turbocharger inspection and rebuild procedures |
| 7G-Tronic Transmission | Fluid and filter service, valve body inspection, conductor plate replacement |
| Air Suspension | AIRMATIC strut replacement, compressor diagnosis, ride-height sensor calibration |
| Electrical / COMAND | ABS/ESP module diagnostics, wiring harness repair, body control module fault-finding |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
What is the known swirl flap issue on the R320’s OM642 engine, and does the manual cover the fix?
Yes. The 3.0L V6 CDI OM642 engine used in the R320 4Matic is known for swirl flap actuator failures that can lead to rough running and potential engine damage if plastic components break loose. The manual includes complete intake manifold removal procedures, swirl flap actuator replacement steps, and torque specifications required to address this issue correctly.
What chassis platform does the R320 4Matic use?
The R320 4Matic is built on Mercedes-Benz’s W251 platform, a dedicated architecture for the long-wheelbase R-Class. It shares some suspension and drivetrain engineering with the ML-Class (W164) but is unique in its minivan-style six-passenger body configuration. There are no direct North American badge twins on this platform.
Does the manual cover the AIRMATIC air suspension system?
Yes. The manual provides full diagnostic and repair procedures for the optional AIRMATIC air suspension fitted to R320 4Matic models, including compressor testing, strut replacement, ride-height sensor adjustment, and control module fault code interpretation using Mercedes-standard diagnostic protocols.
What format is the manual?
This manual is provided as a PDF document. After purchase you receive instant download access and can save the file to any device. The text is fully searchable, and individual pages or sections can be printed for use in the garage.
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