2017 Mercedes-Benz S600

The 2017 Mercedes-Benz S600 represents the pinnacle of luxury and performance within the S-Class lineup. This model year offered a supremely comfortable ride, advanced technology, and handcrafted interiors. While the S-Class generally enjoys a reputation for reliability, certain issues have surfaced among owners. The S600 boasts a 6.0L Bi-Turbo V12 engine producing 523 horsepower and 612 lb-ft of torque, paired exclusively with a 7-speed automatic transmission (7G-TRONIC PLUS). Other S-Class models offer a range of engines including various V6, V8, and hybrid options, along with 9-speed automatic transmissions in some models. Common owner praises revolve around the opulent interior, smooth ride quality, and powerful engine. Criticisms sometimes focus on the high maintenance costs and complexity of the vehicle’s many electronic systems.

Engine

6.0L Bi-Turbo V12

• Oil Leaks
  • Description/Symptoms: Oil leaks are reported from various locations including the valve cover gaskets, oil pan gasket, and turbocharger oil lines. Symptoms include visible oil leaks under the car, burning oil smell, and low oil level warnings.
  • Solution: Replacing the affected gaskets or lines. Thorough cleaning of the engine bay after repair.
  • Estimated Cost to Fix: $200 - $2000+, depending on the location and complexity of the leak.
  • Recalls: None Found
• Ignition Coil Failure
  • Description/Symptoms: Misfires, rough idling, and loss of power. Diagnostic codes indicating a specific cylinder misfire.
  • Solution: Replacing the faulty ignition coil(s). Replacing spark plugs if needed.
  • Estimated Cost to Fix: $150 - $500+ per coil, plus labor.
  • Recalls: None Found
• Turbocharger Issues
  • Description/Symptoms: Whining noises from the engine, loss of power, and diagnostic trouble codes (DTCs) related to turbocharger performance. Potential oil leaks from turbocharger seals.
  • Solution: Diagnosis to determine the root cause. Replacement or rebuild of the turbocharger. Inspection of related oil and coolant lines.
  • Estimated Cost to Fix: $2,000 - $6,000+ per turbocharger.
  • Recalls: None Found

Transmission

7G-TRONIC PLUS (7-speed automatic)

• Rough Shifting/Hesitation
  • Description/Symptoms: Harsh or delayed shifts, especially between certain gears. Hesitation when accelerating.
  • Solution: Transmission fluid flush and filter replacement. Valve body inspection and potential replacement. Software update.
  • Estimated Cost to Fix: $300 - $3,000+, depending on the severity and required repair.
  • Recalls: None Found

Suspension

• AIRMATIC System Failure
  • Description/Symptoms: Vehicle sagging on one or more corners, error messages related to the AIRMATIC system, compressor running excessively, and a harsh ride.
  • Solution: Diagnosing the source of the leak (air struts, air lines, valve block, or compressor). Replacing the faulty component(s).
  • Estimated Cost to Fix: $800 - $3,000+ per strut.
  • Recalls: None Found

Electrical

• COMAND System Malfunctions
  • Description/Symptoms: Freezing, rebooting, display issues, and loss of functionality of the infotainment system.
  • Solution: Software update. Replacement of the COMAND unit.
  • Estimated Cost to Fix: $500 - $3,000+
  • Recalls: None Found
• Battery Drain Issues
  • Description/Symptoms: Dead battery after short periods of inactivity. Difficulty starting the car.
  • Solution: Diagnosing the parasitic draw. Identifying and repairing the faulty component(s) causing the drain. Battery replacement if needed.
  • Estimated Cost to Fix: $150 - $1000+ depending on the complexity
  • Recalls: None Found
• Sensor Failures (Parking Sensors, Blind Spot Monitoring, etc.)
  • Description/Symptoms: Erratic behavior or failure of various sensors. Error messages on the dashboard.
  • Solution: Diagnosing the faulty sensor(s). Replacing the sensor(s)
  • Estimated Cost to Fix: $200 - $800+ per sensor.
  • Recalls: None Found

Exterior

• Sunroof Issues
  • Description/Symptoms: Sunroof does not open or close properly. Unusual noises. Water leaks.
  • Solution: Repair or replace the sunroof motor, tracks, or seals. Clear any debris from the sunroof drainage system.
  • Estimated Cost to Fix: $300 - $1,500+ depending on the issue
  • Recalls: None Found

Interior

• Seat Actuator Failure
  • Description/Symptoms: Seats not adjusting correctly. Motors making unusual noises.
  • Solution: Replacing the faulty seat actuator motor(s).
  • Estimated Cost to Fix: $400 - $1,200+ per seat.
  • Recalls: None Found
• Dashboard Cracking
  • Description/Symptoms: Cracks appearing on the dashboard surface, particularly in areas exposed to direct sunlight.
  • Solution: Replacement of the dashboard, or repair by a specialized upholstery shop.
  • Estimated Cost to Fix: $1,000 - $4,000+
  • Recalls: None Found

Summary

The 2017 Mercedes-Benz S600, while a luxurious and high-performing vehicle, does exhibit some common issues. Engine oil leaks and electrical problems are among the most frequent concerns, followed by potential AIRMATIC suspension issues. The severity of these problems can range from minor inconveniences to costly repairs. Prospective buyers should be aware of these potential issues and consider a pre-purchase inspection by a qualified mechanic experienced with Mercedes-Benz vehicles. The cost of repairs can be significant, especially for complex systems like the AIRMATIC suspension and COMAND infotainment system.