Target Audience:
Mercedes-Benz R107/C107 SL-Class owners, enthusiasts, and independent repair shops
Advantage:
Vehicle-specific, factory-level detail; comprehensive coverage; digital format offers flexibility and durability compared to traditional paper manuals
Usability:
Easy-to-use PDF, printable pages, zoomable images, searchable text (implied for PDF)
Powertrains:
Engine, Fuel Service Specifications, Emission Control, Intake/Exhaust/Cooling, Lube, Ignition, Starting/Charging, Auto Transmission/Clutch, Manual Transmission, Transfer/Propeller Shaft, Drive Shaft, Differential, Axle/Suspension
Chassis And Body:
Tire & Wheel, Brake Control, Brake, Parking Brake, Steering Column, Power Steering, Windshield/Glass/Mirror, Engine Hood/Door, Exterior & Interior
Electrical And Accessories:
Electrical System, Meter/Audio/Visual, Horn, Air Conditioning, Supplemental Restraint System, Seat Belt, Engine Immobilizer, Cruise Control, Wiper & Washer, Door Lock, Instrument Panel
Repair And Diagnostics:
Complete step-by-step instructions, diagnosis, maintenance, service, repair, troubleshooting
Documentation:
Diagrams, illustrations, wiring schematics, specifications
Level:
Factory High-Detail; Equivalent to Dealership Technician Manuals
Compatibility:
Windows (Vista 32/64, XP, ME, 98, NT, 2000), Mac OS
Printability:
Fully printable; sections or entire manual can be printed
Binding:
N/A (Digital PDF)
Paper Quality:
N/A (Digital PDF, print on demand)
Engine Options 1975:
Likely to cover the 3.5L M116 V8 (e.g., 350 SL) and potentially the 4.5L M117 V8 (e.g., 450 SL) depending on specific market availability for 1975 models.
Horsepower Torque Estimates:
350 SL (M116): Approx. 197-200 hp (SAE Gross), 211-215 lb-ft torque. 450 SL (M117): Approx. 225-230 hp (SAE Gross), 270-275 lb-ft torque. (Specific figures vary by market and emissions regulations).
Fuel Delivery:
Bosch D-Jetronic (Injection) for V8 engines. Likely includes fuel pump, injector, and pressure regulator diagnostics and repair.
Transmission Type:
Typically 3-speed automatic (e.g., 3HP20) was standard on most 1975 R107/C107 models. Manual transmissions were less common, especially in North America.
Manual Transmission Availability:
A 4-speed manual transmission might have been available in certain markets or as a specific option. Manual transmission service, clutch replacement, and related components would be covered if applicable.
Transmission Fluid:
Manuals will specify approved ATF (Automatic Transmission Fluid) and gear oil specifications. For 3HP20, typically Dexron II or equivalent.
Crash Testing Era:
While formal crash ratings as we know them today were not prevalent, the R107 was designed with a robust structure, including a reinforced A-pillar and a strong windshield frame.
Braking System:
Four-wheel disc brakes with power assistance. Early models might have had less sophisticated ABS or were without it. Manual will detail brake system maintenance, fluid specifications (e.g., DOT 3/4), and component replacement.
Seat Belts:
Standard 3-point inertia reel seat belts, likely with shoulder belt anchors. Manual will cover adjustment, replacement, and function.
Audio System:
Early models featured basic AM/FM radio, possibly with an 8-track player or cassette. Manual will cover removal, installation, and speaker service.
Cruise Control:
Optional cruise control systems were available and are covered in the manual for diagnosis and repair.
Wiring Schematics:
Comprehensive wiring diagrams for all electrical systems, crucial for diagnosing and repairing issues in a car of this era.
Oil Change Schedule:
Typically every 5,000-7,500 miles or 6-12 months, depending on driving conditions. Manual will have specific recommendations.
Tune Up Schedule:
Spark plugs, distributor cap, rotor, and ignition points (if applicable) would be part of a tune-up, likely every 15,000-20,000 miles. Manual will provide exact intervals.
Engine Oil:
Likely 10W-40 or 20W-50, depending on ambient temperature. Manual will specify exact Mercedes-Benz approved grades and API service classifications.
Coolant:
Ethylene glycol-based coolant, typically a 50/50 mix with distilled water. Manual will specify Mercedes-Benz approved coolant type.
Common Wear Items:
Fuel system components (injectors, pumps), vacuum lines, suspension bushings, exhaust system, and electrical contacts are common areas requiring attention on older vehicles like the R107.
Mercedes Benz Legacy:
Mercedes-Benz has a long history of producing luxurious and technically advanced grand tourers and sports cars. The SL (Sport Leicht) lineage is iconic.
R107 Development:
The R107 replaced the W113 'Pagoda' SL. It was designed to be more robust and American market-friendly, featuring a longer wheelbase and V8 engines. The C107 was the coupe variant.
R107 Production Years:
1971-1989 (a remarkably long production run), with the 1975 model year firmly within this generation.
