Description
Factory Mercedes S Class W221 Workshop Manual (2006–2013)
This is the official factory-level repair manual for the Mercedes-Benz S Class W221, covering every variant sold in the US market from 2006 through 2013—from the S350 through the S65 AMG and armored Guard editions.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | M272 3.5L V6, M273 4.7L & 5.5L V8, M275 6.0L V12 Biturbo, M156 6.2L AMG V8, S400 Hybrid |
| Diesel | OM642 3.0L V6 CDI |
| Transmissions | 7G-Tronic 722.9 7-speed automatic, 5-speed automatic; mechatronic unit diagnostics and rebuild procedures |
| Drive | RWD; 4MATIC AWD variants |
| Model Years | 2006–2013 |
| Badge Twins | V221 long-wheelbase, W221 Guard armored |
Common S Class W221 Repairs Covered
| System | Procedures |
|---|---|
| Airmatic Air Suspension | Compressor replacement, air strut removal and installation, ride height sensor calibration, fault code diagnosis |
| 7G-Tronic Transmission | Mechatronic unit removal, fluid and filter service, solenoid diagnostics, valve body rebuild |
| Engine Management | Balance shaft sprocket wear (M272/M273), camshaft adjuster replacement, CAN bus fault diagnosis |
| Electrical & HVAC | COMAND unit wiring, dual-zone climate control recalibration, seat control module replacement, wiring harness pinouts |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Is the M272/M273 balance shaft sprocket issue covered in this manual?
Yes. The M272 3.5L V6 and M273 V8 engines fitted to many W221 S Class vehicles are known for premature balance shaft and idler sprocket wear, which can cause timing-related noise and engine damage. The manual includes complete engine disassembly sequences, timing chain component specifications, and the torque values required to perform this repair correctly.
Does the manual cover both the standard W221 and the long-wheelbase V221?
Yes. Both the standard-wheelbase W221 and the extended V221 Pullman-style long-wheelbase body are covered. Procedures for the armored Guard variant are also included where applicable, covering chassis and body differences specific to those builds.
Are Airmatic suspension diagnostics and wiring diagrams included?
Absolutely. The Airmatic air suspension system receives thorough coverage including compressor output testing, individual strut pressure checks, ride height sensor adjustment, and complete electrical schematics with connector pinouts. Distronic Plus, night vision, and CAN bus network diagrams are also included in the electrical section.
What format is the manual?
This manual is delivered as a fully searchable PDF file, compatible with any PDF reader on Windows, Mac, Linux, tablets, or smartphones. Individual pages or full sections can be printed for use in the shop. After purchase, the file is available for instant download and can be re-downloaded at any time.
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