2016 Mercedes-Benz S400L

2016 Mercedes-Benz S400L with 3.0L Twin-Turbo V6 Engine and 9-Speed Automatic Transmission

The 2016 Mercedes-Benz S400L is a luxury sedan that offers a comfortable and powerful driving experience. It comes equipped with a 3.0L twin-turbocharged V6 engine that produces 329 horsepower and 354 lb-ft of torque, paired with a 9-speed automatic transmission. The S400L is known for its advanced safety features, spacious cabin, and impressive performance. However, there have been some reported issues associated with the vehicle.

Engine

3.0L Twin-Turbo V6 Engine

• High-Pressure Fuel Pump Failure:
  • Description/Symptoms: Engine stalls or hesitates during acceleration, loss of power.
  • Solution: Replacement of the high-pressure fuel pump.
  • Estimated Cost to Fix: $1,500 - $2,000+
  • Recalls: NHTSA Campaign Number: 19V388000
• Turbocharger Actuator Failure:
  • Description/Symptoms: Loss of boost pressure, reduced engine performance, check engine light.
  • Solution: Replacement of the turbocharger actuator.
  • Estimated Cost to Fix: $1,200 - $1,800+
  • Recalls: None Found

Transmission

9-Speed Automatic Transmission

• Shift Hesitation:
  • Description/Symptoms: Transmission hesitates or jerks during gear changes, especially at low speeds.
  • Solution: Software update or transmission fluid replacement.
  • Estimated Cost to Fix: $0 - $500
  • Recalls: NHTSA Campaign Number: 18V842000
• Transmission Fluid Leak:
  • Description/Symptoms: Fluid leak from the transmission pan or lines, low transmission fluid level.
  • Solution: Repair or replacement of leaking components, transmission fluid refill.
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

Suspension

• Air Suspension Compressor Failure:
  • Description/Symptoms: Vehicle fails to maintain ride height, suspension becomes stiff or inoperable.
  • Solution: Replacement of the air suspension compressor.
  • Estimated Cost to Fix: $1,500 - $2,000+
  • Recalls: NHTSA Campaign Number: 16V660000

Electrical

• Battery Discharge:
  • Description/Symptoms: Battery drains quickly, vehicle may fail to start.
  • Solution: Inspection and repair of electrical system, replacement of battery if necessary.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found
• Headlight Condensation:
  • Description/Symptoms: Moisture accumulates inside the headlight assemblies, causing poor visibility.
  • Solution: Replacement of the headlight assemblies.
  • Estimated Cost to Fix: $600 - $1,200+
  • Recalls: None Found

Exterior

• Sunroof Rattle:
  • Description/Symptoms: Rattling noise coming from the sunroof area.
  • Solution: Adjustment or repair of the sunroof components.
  • Estimated Cost to Fix: $200 - $500
  • Recalls: None Found

Interior

• Climate Control Malfunction:
  • Description/Symptoms: Climate control system fails to regulate temperature, air vents not blowing air.
  • Solution: Diagnosis and repair of the climate control system, replacement of components if necessary.
  • Estimated Cost to Fix: $300 - $1,000+
  • Recalls: None Found
• Door Lock Failure:
  • Description/Symptoms: Door locks fail to operate properly, doors may open or close unintentionally.
  • Solution: Replacement of the door lock actuators.
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found

Summary

Overall, the 2016 Mercedes-Benz S400L is a well-regarded luxury sedan with a powerful engine and advanced features. However, it has been prone to some common issues, particularly with its engine, transmission, and electrical systems. The severity and cost of these issues vary depending on the specific problem and the extent of the repair required. It’s important for owners and potential buyers to be aware of these issues and consider the cost of potential repairs before making a decision about this vehicle.