Description
Factory Mercedes 450 SLC Workshop Manual (1973–1980)
This official factory-level service manual gives US owners and technicians everything needed to maintain and repair the classic Mercedes-Benz 450 SLC C107 coupe, covering all seven model years of production in thorough detail.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | M117 4.5L V8 (naturally aspirated, Bosch K-Jetronic fuel injection, ~225 hp) |
| Diesel | N/A |
| Transmissions | 3-speed automatic |
| Drive | RWD |
| Model Years | 1973–1980 |
| Badge Twins | R107 SL roadster (shared platform); C107 chassis designation |
Common 450 SLC Repairs Covered
| System | Procedures |
|---|---|
| Bosch K-Jetronic Fuel Injection | Cold-start valve diagnosis, fuel distributor servicing, warm-up regulator adjustment — a frequent concern on aged C107 fuel systems |
| Timing Chain & M117 Engine | Chain tensioner inspection, valve timing verification, top-end rebuild procedures including torque specifications |
| 3-Speed Automatic Transmission | Fluid and filter service, kickdown cable adjustment, governor and valve body overhaul |
| Rust-Prone Body & Chassis | Floor pan, sill, and rear quarter panel repair procedures; body-off chassis inspection and sealing guidance |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Why does my 450 SLC run rough when cold — is K-Jetronic diagnosis covered?
Yes. The manual fully addresses the Bosch K-Jetronic continuous injection system fitted to the M117 V8, including cold-start enrichment, warm-up regulator pressure testing, and auxiliary air valve inspection — all common culprits behind rough cold running on these vehicles.
Is the 450 SLC the same as the 450 SL?
They share the R107/C107 platform and the M117 V8 engine, but the 450 SLC uses the distinct C107 body — a longer-wheelbase fixed-roof coupe. This manual is specific to the C107 450 SLC and covers its unique structural and trim differences from the open R107 roadster.
Are wiring diagrams and electrical schematics included?
Complete electrical documentation is included, covering all major circuits: K-Jetronic injection, ignition, lighting, HVAC controls, power windows, and central locking. Wire color coding, fuse box layouts, ground point locations, and connector pinouts are all detailed for accurate fault diagnosis.
What format is the manual?
This manual is a PDF document. After purchase you can download it immediately and re-download it at any time. The file is fully searchable, printable page-by-page, and compatible with any PDF reader on Windows, Mac, iOS, Android, or Linux.
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