Mercedes 350 SDL Turbo 1990–1991 Service Repair Manual – PDF Download

🛠️ Mercedes 350 SDL Turbo 1990–1991 Service Repair Manual – PDF Download

🧰 Complete Factory Workshop Manual – Covers All Repairs & Maintenance Tasks
📲 Instant PDF Download – Compatible with All Devices (Windows, Mac, iOS, Android)
🔧 Perfect for DIY Repairs, Routine Service, and Professional Diagnostics

🚀 Quick Intro:

The Mercedes 350 SDL Turbo 1990–1991 service manual PDF download is the complete official factory guide for maintaining, diagnosing, and repairing your turbo diesel 350 SDL. Fully bookmarked and searchable, this manual covers turbo diesel engine servicing, transmission maintenance, wiring troubleshooting, and drivetrain inspections — perfect for restorers, DIY owners, and professional technicians.

🔍 Model Background

The Mercedes 350 SDL Turbo (1990–1991) was a long-wheelbase luxury diesel sedan based on the renowned W126 S-Class platform, offering a unique blend of fuel-efficient performance, long-distance comfort, and executive refinement. As one of the final diesel-powered W126 models sold in North America, the 350 SDL catered to buyers seeking durability and economy without sacrificing prestige.

At its core was the 3.5-liter OM603.970 inline-six turbodiesel engine, producing approximately 121 horsepower and 201 lb-ft of torque. Mated to a 4-speed automatic transmission, the engine provided strong low-end torque and respectable highway cruising capability, though it was better suited for relaxed driving than spirited acceleration.

The “SDL” designation stood for S-Class, Diesel, Long-wheelbase, emphasizing the 350 SDL’s spacious rear cabin and smooth ride quality. Built on the W126’s advanced chassis, the car featured independent suspension, anti-lock brakes (ABS), and a well-balanced ride ideal for extended touring or chauffeur-driven use.

Inside, the 350 SDL was equipped with premium features like leather seating, wood trim, automatic climate control, power accessories, and optional heated seats. Exceptional sound insulation and Mercedes-Benz’s traditional attention to build quality ensured a quiet, comfortable experience for passengers.

Though early OM603 engines had known head gasket and cylinder head issues, well-maintained examples of the 350 SDL remain sought-after today for their classic styling, robust engineering, and efficiency-minded luxury. It stands as a rare and distinctive chapter in Mercedes-Benz’s diesel heritage.

📆 Model Coverage:

• Mercedes 350 SDL Turbo (1990)
• Mercedes 350 SDL Turbo (1991)

📚 Manual Chapters & Content:

• General Vehicle Inspection and Maintenance Schedules
• Turbo Diesel Engine Diagnostics, Repairs, and Overhauls
• Turbocharger Testing, Servicing, and Replacement
• Fuel Injection System Testing and Adjustments
• Ignition System Settings and Idle Speed Calibration
• Transmission Fluid Servicing, Repairs, and Diagnostics
• Cooling System Leak Testing and Radiator Maintenance
• Brake System Bleeding, Pad Replacement, and Repairs
• Suspension and Steering System Adjustments and Diagnostics
• Electrical System Testing, Battery Servicing, and Charging Diagnostics
• HVAC System (Heating, Ventilation, and Air Conditioning) Servicing
• Exhaust System Servicing and Emissions Diagnostics
• Complete Electrical Wiring Diagrams and Troubleshooting Charts
• Body and Frame Rust Prevention, Repair, and Paint Maintenance

💡 Key Features:

• File Type: PDF (compressed in .ZIP or .RAR)
• Language: English
• Fully Bookmarked & Searchable: Yes
• Printable: Yes (print sections as needed!)
• Compatible With: Windows, macOS, iOS, Android, Linux
• Delivery: Instant Digital Download – No Shipping Required!

🔍 Keywords:

Mercedes 350 SDL Turbo service manual, Mercedes 350 SDL 1990–1991 repair manual PDF, Mercedes turbo diesel maintenance guide, Mercedes 350SDL wiring diagrams, Mercedes 350SDL troubleshooting guide, Mercedes factory repair manual PDF

❓ Mini FAQ:

Q: Is this the official Mercedes-Benz factory service manual?
A: Yes, this is the complete official factory manual used by dealership technicians.

Q: Can I view the Mercedes 350 SDL Turbo 1990–1991 service manual on mobile devices?
A: Absolutely — the PDF manual is fully compatible with smartphones, tablets, laptops, and desktop computers.

Q: Does the manual cover turbocharger servicing, engine repairs, and wiring diagrams?
A: Yes! It includes full turbo diesel engine maintenance, transmission diagnostics, and complete electrical troubleshooting.

Q: Will I receive a printed manual?
A: No, this is a digital PDF download available instantly after secure checkout.

🧭 Helpful Resources for Mercedes Car Owners

• Why Every Car Owner Should Own a Service Manual – Find out how a downloadable repair manual can simplify maintenance and help you troubleshoot common problems on your own.
• Car Troubleshooter – Not sure what’s wrong with your Mercedes car? Our free tool lists common issues and DIY fixes across all major car brands.

🔧 Browse More Mercedes Car Manuals

Note: While our manuals are designed for DIY use, they do not replace professional mechanical training. If you're unsure about a repair or your car shows serious issues, we strongly recommend visiting a certified mechanic. These guides are best suited for owners with basic to moderate mechanical experience.