Description
Factory Mercedes-Benz W116 S-Class Workshop Manual (1973–1980)
This official factory-level repair manual covers every W116 S-Class produced between 1973 and 1980, giving US-based owners and technicians the same technical depth relied upon by Mercedes-Benz dealer workshops worldwide.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | M110 2.8L Inline-6 (280S/SE/SEL), M116 3.5L V8 (350SE/SEL), M117 4.5L V8 (450SE/SEL), M100 6.9L V8 (450SEL 6.9) |
| Diesel | N/A |
| Transmissions | 4-speed manual, 3-speed automatic, 4-speed automatic |
| Drive | RWD |
| Model Years | 1973–1980 |
| Badge Twins | N/A |
Common W116 Repairs Covered
| System | Procedures |
|---|---|
| Hydropneumatic Suspension (450SEL 6.9) | Self-leveling sphere replacement, hydraulic fluid service, ride-height calibration |
| Bosch K-Jetronic Fuel Injection | Fuel distributor rebuild, warm-up regulator testing, cold-start injector diagnosis |
| Cooling System | Thermostat replacement, radiator flush, coolant hose inspection on M100 6.9L V8 |
| Brake System | Brake booster overhaul, caliper rebuilding, master cylinder replacement, pad and rotor service |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Does this manual cover the 450SEL 6.9 hydropneumatic suspension?
Yes. The manual includes dedicated procedures for the M100-powered 450SEL 6.9’s self-leveling hydropneumatic suspension system, covering sphere replacement, hydraulic fluid service, and ride-height adjustment — a notorious maintenance area for these flagship models.
Which W116 body variants and trim levels are included?
All W116 configurations are covered: short-wheelbase SE models (280SE, 350SE, 450SE) and long-wheelbase SEL variants (280SEL, 350SEL, 450SEL, 450SEL 6.9), along with both European and North American market specifications.
Are wiring diagrams included for the W116’s electrical systems?
Yes. Full wiring diagrams are provided for fuel injection circuits, climate control, power windows, central locking, lighting, and the instrument cluster, complete with connector locations and wire color codes to aid electrical fault diagnosis.
What format is the manual?
This manual is delivered as a PDF file. It is fully searchable and compatible with any PDF reader on Windows, Mac, Linux, iOS, and Android devices. High-resolution diagrams can be zoomed or printed for shop use.
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