Vehicle Segment:
Luxury Grand Tourer Convertible
Target Audience:
Owners seeking to maintain, service, diagnose, and repair their R129 SL-Class
Competitors:
Porsche 911 (964 generation), BMW 8 Series (E31), Jaguar XJS
Manual Benefit 1:
Empowers owners to perform repairs, reducing reliance on expensive dealership services
Manual Benefit 2:
Provides dealership-level accuracy and detail for confident repairs
Manual Benefit 3:
Digital format offers convenience, portability (printable pages), and longevity
Customer Support:
Contact us option for finding specific manuals
Primary Coverage:
All models and all repairs A-Z for the 1992 Mercedes-Benz SL-Class (R129)
Vehicle Specific:
Yes, vehicle-specific, not generic
Estimated Pages:
Extensive (exact count not provided, but implied to be comprehensive)
Type:
Factory Service and Repair Manual
Intended User:
Dealership Technicians
Accessibility:
Compatible with Windows Vista (32/64-bit), XP, ME, 98, NT, 2000, and Mac
Engine Mechanical:
Engine, Fuel Service Specifications, Emission Control, Intake/Exhaust/Cooling, Lube
Engine Electrical:
Ignition, Starting, Charging, Control System
Drivetrain:
Auto Transmission, Manual Transmission, Transfer Propeller Shaft, Drive Shaft, Differential, Axle Suspension
Chassis And Brakes:
Brake Control, Brake, Parking Brake, Steering Column, Power Steering, Tire & Wheel
Body And Interior:
Exterior & Interior, Engine Hood/Door, Seat, Instrument Panel, Windshield/Glass Mirror
Electrical And Electronics:
Electrical, Multiplex/CAN Communication, Meter Audio/Visual, Horn, Air Condition, Supplemental Restraint System (SRS), Seat Belt, Engine Immobilizer, Cruise Control, Wiper & Washer, Door Lock
Repair Procedures:
Complete step-by-step instructions for all repairs
Diagnostic Procedures:
Diagnostic procedures for fault finding
Maintenance Procedures:
Comprehensive maintenance procedures
Detail Level:
Highly detailed, factory-level technical information
Illustrations:
Diagrams and illustrations for clarity
Schematics:
Wiring schematics included
Specifications:
Comprehensive specifications for all systems
Searchability:
Likely searchable text (standard for quality PDFs)
Printability:
All pages printable
Zoom Capability:
Ability to blow up images for enlarged copies
Digital Binding:
Single, easy-to-use PDF manual (no flipping through books)
Digital Advantage:
No greasy or torn pages; can be kept safely on PC
Engine Type:
3.0L Inline-6 (for 300 SL-24), 5.0L V8 (for 500 SL)
Engine Family:
M104 (likely)
Horsepower 300Sl 24:
Approx. 228 hp (DIN) / 217 hp (SAE net)
Torque 300Sl 24:
Approx. 265 Nm (195 lb-ft)
Horsepower 500Sl:
Approx. 322 hp (DIN) / 315 hp (SAE net)
Torque 500Sl:
Approx. 480 Nm (354 lb-ft)
Fuel Delivery:
Bosch KE-Jetronic (or similar electronic fuel injection system)
Fuel Type:
Unleaded Premium Gasoline
Transmission Type:
5-speed Automatic (722.5)
Manual Transmission Availability:
Not typically offered or common for this model year R129 SL
Automatic Features:
Lock-up torque converter, electronically controlled shifts
Length:
Approx. 4660 mm (183.5 in)
Width:
Approx. 1812 mm (71.3 in)
Height:
Approx. 1305 mm (51.4 in)
Wheelbase:
Approx. 2515 mm (99.0 in)
Curb Weight Approx 300Sl:
Approx. 1700 kg (3748 lbs)
Curb Weight Approx 500Sl:
Approx. 1800 kg (3968 lbs)
Crash Test Data:
While specific 1992 NHTSA/IIHS ratings may not be readily available for this era, Mercedes-Benz vehicles of this period were known for robust construction and advanced safety features for their time.
Active Safety Features:
Anti-lock Braking System (ABS), power-assisted steering
Passive Safety Features:
Integrated Roll-Over Bar (B-pillar structure with automatic deployment), airbags (driver and passenger), crumple zones, reinforced passenger cell, seat belts
Audio System:
Factory premium sound system (e.g., Becker or Blaupunkt), potentially with cassette player and AM/FM radio. CD changer integration was an option.
Driver Assistance Features:
ABS, Cruise Control, Traction Control (on some later models, less common on '92)
Connectivity Features:
Limited by modern standards. Primarily focused on vehicle systems and basic entertainment. No integrated Bluetooth or Wi-Fi.
Multiplex Communication:
The manual covers 'Multiplex/CAN Communication,' indicating early forms of networked vehicle electronics, though not the full CAN bus of later generations.
Oil Change Interval:
Typically every 10,000-15,000 km (6,000-10,000 miles) or annually, depending on driving conditions. Manual will specify exact interval and conditions.
Major Service Intervals:
Refer to manual for detailed service schedules, usually involving checks of transmission fluid, coolant, brake fluid, spark plugs, etc., at specific mileage or time intervals.
Engine Oil Type:
Refer to manual for specific API/ACEA specifications and viscosity grades (e.g., Mobil 1 0W-40 or equivalent synthetic was common for high-performance Mercedes-Benz vehicles of this era).
Transmission Fluid Type:
Refer to manual for specific Mercedes-Benz (e.g., MB 236.1, MB 236.3, or MB 236.6) or Dexron type automatic transmission fluid.
Coolant Type:
Mercedes-Benz approved coolant (e.g., G05 or equivalent ethylene glycol-based coolant with corrosion inhibitors).
Common R129 Issues:
Wiring harness degradation (especially the insulation), MAF sensor issues (on some models), vacuum leaks, convertible top hydraulic system leaks, catalytic converter issues, biodegradable wiring insulation degradation (on later models, but potentially starting to show on early ones).
Manual Assistance For Issues:
The manual provides diagnostic procedures and repair steps to address these potential issues.
Brand Legacy:
Mercedes-Benz has a long-standing reputation for engineering excellence, luxury, and pioneering automotive technology.
R129 Introduction:
The R129 SL-Class replaced the R107 and introduced a more modern design, significantly enhanced safety features, and advanced technology.
Key R129 Innovations:
Automatic roll-over bar, multi-link rear suspension, advanced electronics for engine management and safety systems.
Production Years:
1989-2001
Manufacturing Locations:
Bremen, Germany
