2017 Mercedes-Benz S65 AMG

The 2017 Mercedes-Benz S65 AMG is a high-performance luxury sedan known for its powerful V12 engine and opulent features. While not as common, some owners have reported experiencing certain issues. The S-Class range in 2017 offered other engine options including a V8 in the S550 and various other configurations. The S65 AMG boasts a hand-built 6.0-liter twin-turbocharged V12 engine, producing 621 horsepower and 738 lb-ft of torque, paired exclusively with a 7-speed AMG Speedshift Plus 7G-TRONIC transmission. People admire the S65 for its exceptional performance, luxurious interior, and advanced technology. However, some common dislikes include the high maintenance costs, complex electronics that can be prone to issues, and the considerable depreciation.

Engine

6.0L Twin-Turbo V12

• Oil Leaks
  • Description/Symptoms: Oil leaks may occur from various engine seals and gaskets, leading to oil consumption and potential engine damage. Common areas include the valve cover gaskets, oil filter housing gasket, and rear main seal. Signs can include visible oil drips under the car, the smell of burning oil, and low oil levels.
  • Solution: Replacing the leaking seals and gaskets.
  • Estimated Cost to Fix: $500 - $2,000+, depending on the location and complexity.
  • Recalls: None Found
• Turbocharger Issues
  • Description/Symptoms: The twin turbochargers can experience issues such as wastegate malfunction or internal failure. Symptoms include a loss of power, unusual noises (whining or hissing), and potentially an engine check light.
  • Solution: Replacement or repair of the turbocharger(s).
  • Estimated Cost to Fix: $3,000 - $8,000+, depending on if one or both need replacement.
  • Recalls: None Found

Transmission

7-Speed AMG Speedshift Plus 7G-TRONIC

• Rough Shifting/Hesitation
  • Description/Symptoms: The 7G-TRONIC transmission can exhibit rough or delayed shifting, particularly between certain gears. Some owners have reported a noticeable hesitation when accelerating from a stop.
  • Solution: Transmission fluid flush and filter change may resolve minor issues. More severe cases may require valve body repair or replacement.
  • Estimated Cost to Fix: $300 (fluid/filter) - $3,000+ (valve body).
  • Recalls: None Found

Suspension

• AIRMATIC System Failure
  • Description/Symptoms: The AIRMATIC air suspension system is prone to leaks and compressor failures. Symptoms include the car sitting low on one or more corners, a suspension malfunction warning light, and excessive noise from the air compressor.
  • Solution: Replacing the affected air strut(s) or air compressor.
  • Estimated Cost to Fix: $1,000 - $4,000+ per strut, $800 - $2,000+ for the compressor.
  • Recalls: None Found

Electrical

• Battery Drain Issues
  • Description/Symptoms: Excessive battery drain can be a common issue, particularly if the vehicle is not driven regularly. This can be caused by a variety of factors, including faulty modules or aftermarket accessories.
  • Solution: Diagnosing and repairing the source of the parasitic draw. This may involve replacing a faulty module or disconnecting aftermarket accessories.
  • Estimated Cost to Fix: $100 - $1,000+, depending on the complexity of the issue.
  • Recalls: None Found
• COMAND System Malfunctions
  • Description/Symptoms: The COMAND infotainment system can experience software glitches, screen freezes, or complete failure.
  • Solution: Software updates may resolve some issues. More severe cases may require replacement of the COMAND unit.
  • Estimated Cost to Fix: $100 - $200 (software updates), $1,500 - $3,000+ (replacement).
  • Recalls: None Found

Exterior

• Headlight Issues
  • Description/Symptoms: LED headlights may experience premature failure, causing dimming or complete loss of function.
  • Solution: Replacement of the headlight assembly or individual LED components.
  • Estimated Cost to Fix: $1,500 - $4,000+ per headlight.
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: The panoramic sunroof can experience malfunctions, such as getting stuck open or closed, or producing excessive noise during operation.
  • Solution: Repair or replacement of the sunroof motor, tracks, or other components.
  • Estimated Cost to Fix: $500 - $2,000+.
  • Recalls: None Found

Summary

The 2017 Mercedes-Benz S65 AMG, while offering exceptional performance and luxury, is prone to certain issues, particularly related to its complex systems like the engine, transmission, air suspension, and electronics. Repair costs can be substantial, reflecting the high-end nature of the vehicle. Potential buyers should be aware of these potential issues and factor them into their ownership expectations, including thorough inspections and budgeting for potential repairs. The severity of these issues can range from minor inconveniences to major mechanical failures, with repair costs ranging from a few hundred dollars to several thousand.