Get More Insights About Mercedes Benz S350 CDI (W221)

The Mercedes Benz S 350 CDI, part of the W221 series, was produced between 2009 and 2013. This diesel-powered luxury sedan was renowned for its exceptional comfort, advanced technology, and fuel-efficient performance, making it an ideal choice for long-distance and executive travel.

Features

• Engine:
  • 3.0L V6 diesel engine.
  • Produces 258 hp and 620 Nm of torque.
• Transmission:
  • 7-speed automatic gearbox (7G-TRONIC) with smooth gear transitions.
• Interior:
  • Luxurious leather upholstery with wood and aluminum trim options.
  • COMAND infotainment system with navigation, Bluetooth, and DVD player.
  • Multi-zone climate control with rear-seat controls.
  • Electrically adjustable front and rear seats with memory and massage functions.
  • Ambient lighting and high-end audio system.
• Safety:
  • PRE-SAFE system, Attention Assist, and adaptive cruise control.
  • Night View Assist (optional) and lane-keeping assist.
  • 8 airbags, ABS, ESP, and traction control.
  • Parking sensors and a 360-degree camera system.
• Exterior:
  • Bi-xenon headlamps with LED daytime running lights.
  • LED tail lamps and chrome-accented grille.
  • Elegant design with 18-inch alloy wheels.

Reliability

• The S 350 CDI is highly reliable, provided it is serviced regularly.
• The V6 diesel engine is robust and fuel-efficient but requires timely maintenance to avoid issues with injectors and the turbocharger.

Performance

• Acceleration: 0–100 km/h in 7.1 seconds.
• Top Speed: 250 km/h (electronically limited).
• Driving Dynamics:
  • Excellent torque delivery for effortless overtaking and highway cruising.
  • AIRMATIC suspension ensures a smooth and comfortable ride.
  • Precise steering and stable handling at high speeds.

Maintenance Costs

• Annual Maintenance Cost: ₹1,50,000–₹2,00,000 (depending on usage and condition).
• Typical Service Costs:
  • Regular Service (oil, filters, etc.): ₹50,000–₹70,000.
  • Brake Pads Replacement: ₹30,000–₹50,000.
  • Injector Cleaning or Replacement: ₹60,000–₹1,00,000.

Fuel Efficiency

• City Driving: 9–11 km/l.
• Highway Driving: 13–15 km/l.
• Combined Efficiency: 11–13 km/l.

Periodic Maintenance

• Oil and Filter Change: Every 10,000 km or 1 year.
• Air Filter Replacement: Every 20,000 km.
• Brake Fluid Replacement: Every 2 years.
• Coolant Replacement: Every 3 years or 50,000 km.
• Transmission Fluid Replacement: Every 60,000 km.

Major Service Intervals

• 40,000 km Service: Includes oil change, air filter replacement, and brake inspection. Approx. ₹70,000–₹1,00,000.
• 80,000 km Service: Includes all the above, plus injector cleaning and transmission fluid replacement. Approx. ₹1,20,000–₹1,50,000.
• 1,20,000 km Service: Includes suspension checks and turbocharger inspection. Approx. ₹1,50,000–₹2,00,000.

Common Problems

• Injector Wear:
  • Symptoms: Reduced performance or fuel efficiency.
  • Solution: Injector cleaning or replacement (₹60,000–₹1,00,000).
• Turbocharger Issues:
  • Symptoms: Loss of power or excessive smoke from the exhaust.
  • Solution: Turbocharger repair or replacement (₹1,00,000–₹1,50,000).
• AIRMATIC Suspension Problems:
  • Symptoms: Uneven ride height or sagging suspension.
  • Solution: Suspension repair or replacement (₹1,00,000–₹1,50,000).
• Electronic Faults:
  • Symptoms: Glitches in the COMAND system or sensors.
  • Solution: Software updates or module replacement (₹20,000–₹50,000).

Parts Cost (Approximate)

• Engine Oil and Filter: ₹20,000–₹30,000.
• Air Filter: ₹7,000–₹10,000.
• Brake Pads (Front and Rear): ₹30,000–₹50,000.
• Battery: ₹50,000–₹70,000.
• AIRMATIC Suspension Components: ₹1,00,000–₹1,50,000.

Market Value (2024–2025)

• Price Range: ₹25–35 lakhs (depending on mileage, condition, and features).
• Depreciation: Retains value reasonably well for a diesel luxury sedan.
• Future Trends: Continues to be a popular choice among buyers looking for a blend of performance, luxury, and efficiency.

The Mercedes-Benz S 350 CDI (W221) combines luxury, efficiency, and robust performance. Its advanced features and reliable V6 diesel engine make it an excellent choice for long-distance travel. Ensure a detailed pre-purchase inspection focusing on the injectors, turbocharger, and suspension to avoid costly repairs.

What is the mileage of Mercedes S350 CDI?

The Mercedes-Benz S350 CDI offers an average mileage of approximately 13–15 km/l, depending on driving conditions, maintenance, and driving style.