Description
Factory Mercedes SL Class SL280 Workshop Manual (1994–2000)
This official factory-level repair manual covers the R129-chassis Mercedes SL280 roadster sold in the US and worldwide from 1994 through 2000, giving technicians and dedicated owners dealer-grade guidance for every service task.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | M104 E28 2.8L DOHC inline-six (approx. 193 hp) |
| Diesel | N/A |
| Transmissions | 5-speed automatic, 5-speed manual gearbox |
| Drive | RWD |
| Model Years | 1994–2000 |
| Badge Twins | N/A |
Common SL280 Repairs Covered
| System | Procedures |
|---|---|
| M104 Timing Chain | Timing chain, tensioner, and guide rail replacement — a known high-mileage wear item on the M104 E28 |
| Soft-Top Hydraulic System | Hydraulic cylinder seal replacement, pump diagnosis, and fluid flush for the R129 power soft-top mechanism |
| ABS / Brake System | ABS module diagnostics, brake caliper overhaul, rotor replacement, and brake fluid bleeding procedures |
| Climate Control (A/C) | Evaporator and condenser service, refrigerant recharge, and HVAC blend door actuator replacement |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
What is the known timing chain issue on the M104 SL280, and does this manual cover the fix?
The M104 E28 inline-six used in the 1994–2000 SL280 is known to develop timing chain rattle at higher mileages due to worn tensioners and plastic guide rails. This manual includes complete step-by-step procedures for timing chain removal, tensioner replacement, and guide rail inspection with the correct torque specifications.
Does the manual cover the R129 power soft-top hydraulic system?
Yes. The R129 SL’s electrohydraulic folding soft-top is fully covered, including hydraulic cylinder seal replacement, pump motor testing, fluid specification, and the complete roof operation sequence for diagnosing slow or failed roof movement — one of the most common complaints on these roadsters.
Are complete wiring diagrams included for the SL280’s electrical systems?
Full electrical coverage is included: engine management wiring, ABS circuits, climate control, central locking, power soft-top relays, lighting circuits, and instrument cluster. Each diagram shows wire colors, connector pin-outs, and ground locations to speed up fault diagnosis.
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 and can be viewed on any Windows, Mac, Linux, or mobile device using a standard PDF reader. Individual pages or entire sections can be printed for workshop use, and the file can be saved for permanent access.
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