2019 Mercedes-Benz S65 AMG

The 2019 Mercedes-Benz S65 AMG is a pinnacle of luxury and performance, boasting a handcrafted 6.0-liter twin-turbocharged V12 engine producing 621 horsepower and 738 lb-ft of torque. This powerhouse is paired with an AMG Speedshift 7G-Tronic automatic transmission. Owners often praise the car for its opulent interior, smooth ride (despite the performance focus), and the sheer power and effortless acceleration. However, some common complaints include the high running costs, complex electronics that can be prone to glitches, and the overall cost of maintenance and repairs. Other engine options include a 4.0L Biturbo V8 Engine, and a 3.0L Turbocharged Inline-6 engine.

Engine

6.0L Twin-Turbocharged V12

• Oil Leaks
  • Description/Symptoms: Oil leaks can develop from various locations, including valve cover gaskets, oil pan gasket, and turbocharger oil lines. Symptoms include oil spots on the ground, a burning oil smell, and low oil level.
  • Solution: Replacing the leaking gasket or line.
  • Estimated Cost to Fix: $300 - $2000+ depending on the source of the leak and labor.
• Turbocharger Issues
  • Description/Symptoms: The turbochargers on the V12 engine are complex and can experience issues such as oil leaks, bearing failures, or wastegate malfunctions. Symptoms may include reduced power, unusual noises (whining or whistling), and potentially turbocharger failure.
  • Solution: Replacing or rebuilding the affected turbocharger.
  • Estimated Cost to Fix: $3000 - $7000+ per turbocharger (parts and labor).

Transmission

AMG Speedshift 7G-Tronic

• Rough Shifting/Hesitation
  • Description/Symptoms: Some owners report experiencing rough shifting or hesitation, particularly when shifting at lower speeds. This can manifest as jerky movements or a delay in gear engagement.
  • Solution: A software update or transmission flush could resolve the issue in some cases. In others, valve body repair or replacement may be necessary.
  • Estimated Cost to Fix: $300 (flush) - $4000+ (valve body).

Suspension

• AIRMATIC Suspension Problems
  • Description/Symptoms: The AIRMATIC air suspension system is known for its comfort and handling benefits, but it can be prone to issues, particularly leaks in the air struts or compressor failure. Symptoms include a sagging suspension, uneven ride height, and error messages on the dashboard.
  • Solution: Replacing the affected air strut(s), compressor, or air lines.
  • Estimated Cost to Fix: $1500 - $4000+ per strut or compressor.

Electrical

• Battery Drain
  • Description/Symptoms: The S65 AMG has a complex electrical system, and some owners have reported experiencing issues with excessive battery drain, particularly when the car is not driven for extended periods. This can lead to a dead battery and the inability to start the car.
  • Solution: Identifying and addressing the parasitic draw. This may involve diagnosing and repairing faulty modules, wiring issues, or aftermarket accessories.
  • Estimated Cost to Fix: $100 - $1000+ depending on the cause.
• Infotainment System Glitches
  • Description/Symptoms: The COMAND infotainment system can occasionally experience glitches, such as freezing, crashing, or displaying incorrect information.
  • Solution: In some cases, a software update can resolve the issue. More severe cases may require module replacement.
  • Estimated Cost to Fix: $0 (software update) - $2000+ (module replacement).

Exterior

• No Issues Found

Interior

• No Issues Found

Recalls

• NHTSA Recall Number: 20V793000
  • Description: Mercedes-Benz USA, LLC (MBUSA) is recalling certain model year 2019 CLS 450, E 450, E 53 AMG, S 450, S 560, S 63 AMG, and S 65 AMG vehicles. The driver and front passenger seat belt automatic locking retractors may deactivate early, before the seat belt is fully extended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, “Occupant Crash Protection.”
  • Remedy: MBUSA will notify owners, and dealers will replace the seat belt automatic locking retractors, free of charge. The recall began December 22, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA’s number for this recall is 2020110015.

Summary The 2019 Mercedes-Benz S65 AMG offers exhilarating performance and luxurious features, but potential buyers should be aware of some common issues. Engine oil leaks and turbocharger problems can be costly to repair, as can issues with the AIRMATIC suspension. Electrical gremlins and infotainment glitches can also be frustrating. While not every S65 AMG will experience all of these issues, it’s essential to have any potential purchase thoroughly inspected by a qualified mechanic to identify and address any existing or potential problems. The costs of repairs can range from a few hundred dollars to several thousands, so budgeting for potential maintenance is crucial.