Description
Factory Mercedes S-Class S500 Workshop Manual (2014–2020)
This is the complete factory-level service manual for the W222-chassis Mercedes S500, covering every model year from launch through the 2020 model year — including pre-facelift (2014–2017) and post-facelift (2018–2020) builds. US-market technicians get full access to wiring diagrams, torque specs, and OEM repair procedures in a single searchable PDF.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | M278 4.7L biturbo V8; M176 4.0L biturbo V8 |
| Diesel | N/A |
| Transmissions | 9G-TRONIC 9-speed automatic (725.0) |
| Drive | RWD; 4MATIC AWD |
| Model Years | 2014–2020 |
| Badge Twins | S500 4MATIC (V222); S500 Pullman (X222 long-wheelbase) |
Common S500 Repairs Covered
| System | Procedures |
|---|---|
| AIRMATIC Air Suspension | Compressor replacement, air strut R&R, valve block diagnosis, ride-height calibration |
| M278 / M176 Engine | Spark plug service, oil cooler seal replacement, balance shaft timing, cam adjuster cleaning |
| 9G-TRONIC Transmission | Fluid and filter service, valve body diagnostics, mechatronic unit removal |
| Electrical / CAN-Bus | COMAND wiring schematics, MULTIBEAM LED headlight coding, SRS module diagnostics, ground point locations |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Does the manual cover both the standard and long-wheelbase S500 variants?
Yes. The manual addresses the W222 standard-wheelbase sedan, the V222 long-wheelbase variant, and the X222 Pullman. All share the same powertrain and suspension architecture, so repair procedures, torque specifications, and wiring diagrams apply across all body lengths covered in the 2014–2020 production run.
Which engines are documented — M278 or M176?
Both are covered. Early 2014–2017 S500 models used the M278 4.7-liter twin-turbocharged V8 rated at approximately 449 hp. The facelifted 2018–2020 models transitioned to the newer M176 4.0-liter twin-turbo V8. The manual includes separate sections with engine-specific torque specs, timing procedures, and fuel system data for each unit.
Are AIRMATIC suspension and COMAND electrical diagrams included?
Yes. The AIRMATIC air suspension section covers compressor specs, strut replacement sequences, valve block testing, and ride-height sensor calibration. The electrical chapter contains full CAN-bus network diagrams, COMAND infotainment schematics, MULTIBEAM LED headlight control wiring, connector pinouts, and ground locations — everything needed for modern Mercedes electrical diagnostics.
What format is the manual?
The manual is delivered as a PDF file. After purchase you receive an instant download link; the file is fully searchable, zoomable, and compatible with any PDF reader on Windows, Mac, iOS, or Android. You may also print individual pages or entire sections for use in the shop.





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