Description
Factory Mercedes-Benz SL-Class R129 Workshop Manual (1989–2001)
This official factory-level workshop manual covers the complete Mercedes-Benz SL-Class R129 lineup sold in the US and worldwide from 1989 through 2001, giving technicians and dedicated owners the same repair depth found at authorized dealerships.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | M104 3.0L inline-6 (M104.990), M104 3.2L inline-6 (M104.991), M119 5.0L V8 (M119.960, M119.982), M120 6.0L V12 (M120.981), AMG-tuned variants |
| Diesel | N/A |
| Transmissions | 722.3, 722.5, 722.6 automatic transmissions (all variants) |
| Drive | RWD |
| Model Years | 1989–2001 |
| Badge Twins | N/A |
Common R129 Repairs Covered
| System | Procedures |
|---|---|
| Hydraulic Convertible Top | Hydraulic pump replacement, fluid flush, cylinder seal repair, limit switch adjustment |
| 722.6 Transmission | Conductor plate replacement, fluid and filter service, valve body inspection and rebuild |
| M119 V8 Engine | Timing chain tensioner service, head gasket replacement, distributor cap and rotor service |
| Climate Control (HVAC) | Blend door actuator diagnosis, refrigerant recharge procedure, blower motor replacement |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Why does my R129 convertible top stop mid-cycle?
The R129 hydraulic soft-top system is a well-documented trouble area. Common causes include a failing hydraulic pump, degraded cylinder seals, or faulty limit switches. This manual provides complete hydraulic circuit diagrams, fluid specification data, cylinder seal replacement procedures, and switch adjustment specs to diagnose and resolve top-operation faults.
Which SL-Class model variants are included in this manual?
All R129-chassis variants are covered, including the SL300, SL320, SL500, SL600, SL55 AMG, and SL73 AMG. Both standard soft-top convertible and optional removable hardtop configurations are documented throughout. The R129 represented Mercedes’ fourth-generation SL roadster and was sold in the US from the 1990 model year onward.
Are the 722.6 automatic transmission rebuild procedures included?
Yes. The manual covers the 722.3, 722.5, and 722.6 NAG1 automatic transmissions used across all R129 variants. Documented procedures include conductor plate replacement (a known R129 failure point), complete fluid and filter service intervals, torque converter removal, valve body disassembly, and full rebuild specifications with torque values.
What format is the manual?
The manual is delivered as a PDF file available for instant download after purchase. It is fully searchable and compatible with any PDF reader on Windows, Mac, iOS, or Android. Individual pages or complete chapters can be printed for bench use, and your purchase allows lifetime re-downloads at no additional charge.





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