2018 Mercedes-Benz Maybach S650

The 2018 Mercedes-Benz Maybach S650 represents the pinnacle of luxury and refinement within the Mercedes-Benz lineup. Powered by a handcrafted 6.0-liter twin-turbo V12 engine producing 621 horsepower and 738 lb-ft of torque, it delivers effortless performance. Other engine options available in the S-Class range include V6, V8, and hybrid configurations, but the S650 is exclusive to the V12. Transmission options are limited to the 7G-TRONIC PLUS 7-speed automatic for the V12 in this model year. Owners often praise the Maybach S650 for its opulent interior, smooth ride quality, and advanced technology, while some criticisms include its high price tag, complex electronics, and running costs.

Engine

6.0L Twin-Turbo V12

• Oil Leaks
  • Description/Symptoms: Oil leaks may develop from the valve cover gaskets. Symptoms include the smell of burning oil, visible oil drips under the car, and low oil levels.
  • Solution: Replacement of the valve cover gaskets.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found
• Ignition Coil Failure
  • Description/Symptoms: Misfires, rough running engine, check engine light illumination. Individual ignition coils can fail, leading to cylinder misfires.
  • Solution: Replacing the faulty ignition coil.
  • Estimated Cost to Fix: $300 - $500+ per coil
  • Recalls: None Found

Transmission

7G-TRONIC PLUS 7-Speed Automatic

• Torque Converter Issues
  • Description/Symptoms: Shuddering during gear changes, especially at low speeds. May be related to the torque converter lockup clutch.
  • Solution: Replacement of the torque converter.
  • Estimated Cost to Fix: $2,500 - $4,500+
  • Recalls: None Found
• Rough Shifting
  • Description/Symptoms: Harsh or delayed shifts between gears. Can be more pronounced when the transmission is cold.
  • Solution: Transmission flush and software update; if the issue persists, valve body replacement or complete transmission overhaul may be necessary.
  • Estimated Cost to Fix: $300 for flush, $1,500 - $4,000+ for valve body/overhaul.
  • Recalls: None Found

Suspension

• AIRMATIC System Malfunctions
  • Description/Symptoms: Vehicle sagging on one or more corners, suspension warning lights illuminated, compressor noise, failure to maintain ride height. Issues can stem from air struts, compressor, valve block, or air lines.
  • Solution: Diagnosis of the specific component failure and replacement of the faulty part. Air struts are a common failure point.
  • Estimated Cost to Fix: $1,500 - $3,000+ per strut; $800 - $1,500+ for compressor.
  • Recalls: None Found

Electrical

• COMAND System Issues
  • Description/Symptoms: Infotainment screen freezing, unresponsive controls, navigation problems, Bluetooth connectivity issues.
  • Solution: Software update; if unsuccessful, replacement of the COMAND unit may be required.
  • Estimated Cost to Fix: $100 - $300 for software update; $1,500 - $3,000+ for COMAND unit replacement.
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Dead battery, difficulty starting the car, frequent jump starts required. Can be caused by a parasitic draw from a faulty module or component.
  • Solution: Diagnosis of the source of the parasitic draw and repair or replacement of the offending component.
  • Estimated Cost to Fix: $200 - $1,000+ depending on the source of the drain.
  • Recalls: None Found

Exterior

• Automatic Door Closing Assist Malfunctions
  • Description/Symptoms: Doors not fully closing automatically, requiring manual effort to shut, or system failing to engage at all.
  • Solution: Repair or replacement of the door closing assist mechanism.
  • Estimated Cost to Fix: $800 - $2000+ per door
  • Recalls: None Found

Interior

• Seat Control Problems
  • Description/Symptoms: Malfunctioning seat controls, failure to adjust seat position, lumbar support issues, massage function inoperative.
  • Solution: Diagnosis and repair or replacement of the seat control module or associated components.
  • Estimated Cost to Fix: $500 - $1500+
  • Recalls: None Found
• Sunroof Issues
  • Description/Symptoms: Sunroof not opening or closing properly, unusual noises during operation, water leaks.
  • Solution: Repair or replacement of the sunroof motor, tracks, or seals.
  • Estimated Cost to Fix: $500 - $2000+
  • Recalls: None Found

Summary

The 2018 Mercedes-Benz Maybach S650, while offering unparalleled luxury, is prone to several issues, particularly related to its complex engine, transmission, air suspension, and electrical systems. The V12 engine, while powerful, can suffer from oil leaks and ignition coil failures. Transmission problems may arise, including torque converter issues and rough shifting. The AIRMATIC suspension is susceptible to malfunctions, and electrical glitches can affect the COMAND system and cause battery drain. Interior and exterior features such as seat controls, sunroof, and door closing assist may also experience failures. Repair costs can be significant, reflecting the high cost of parts and labor associated with a luxury vehicle of this caliber. Overall, potential buyers should be aware of these common issues and factor in potential repair expenses when considering the purchase of a used 2018 Maybach S650.