Description
Factory Mercedes SL Class 500SL Workshop Manual (1989–1993)
This official factory workshop manual for the Mercedes-Benz R129 500SL gives US technicians and enthusiasts complete, dealer-level repair and service data for one of the most iconic roadsters of its era.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | M119 5.0L V8 DOHC 32-valve (approx. 322 hp / 332 lb-ft) |
| Diesel | N/A |
| Transmissions | 4-speed automatic |
| Drive | RWD |
| Model Years | 1989–1993 |
| Badge Twins | N/A |
Common 500SL Repairs Covered
| System | Procedures |
|---|---|
| Automatic Roll Bar | R129 automatic roll bar deployment diagnosis, hydraulic actuator service, reset procedures |
| Soft Top Hydraulic System | Power convertible top hydraulic pump replacement, cylinder seal repair, limit switch adjustment |
| M119 Timing & Valve Train | Cam chain tensioner inspection, timing procedure, DOHC valve clearance and head gasket service |
| ABS / Brakes | ABS unit diagnosis, brake booster service, caliper overhaul, and rotor replacement specifications |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Why does the R129 500SL’s automatic roll bar sometimes fail to retract?
The R129’s automatic roll bar relies on a hydraulic/electromechanical system that can develop faults in the locking pawl, sensors, or hydraulic actuator over time. This manual covers full diagnostic procedures, actuator removal, and reset sequences so you can restore proper operation safely.
Is the R129 500SL the same platform as any other Mercedes model?
The R129 platform was developed exclusively for the SL-Class roadster. While the M119 V8 engine was also used in the W124 500E sedan and the W140 S-Class, the R129 chassis, body structure, and suspension geometry are unique to the SL lineup — all covered in full detail here.
Does the manual cover the power soft top and convertible top hydraulics?
Yes. The manual includes complete service procedures for the R129’s power soft top system, covering the hydraulic pump, cylinders, limit switches, and wiring. Troubleshooting charts help isolate whether a slow or inoperative top is caused by a fluid leak, pump wear, or an electrical fault.
What format is the manual?
This manual is delivered as a PDF file. After purchase, you receive an instant download link and retain lifetime re-download access. The file is fully searchable and compatible with Windows, Mac, iOS, and Android devices.
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