2013 Mercedes-Benz S65 AMG

The 2013 Mercedes-Benz S65 AMG is a high-performance luxury sedan boasting a handcrafted 6.0-liter twin-turbo V12 engine, delivering a staggering 621 horsepower and 738 lb-ft of torque. It was also available as an S63 AMG with a 5.5L Biturbo V8. The S65’s immense power and opulent features are appreciated by many, but some common complaints revolve around its complex systems leading to potential reliability issues and high maintenance costs. Specific dislikes include the air suspension system’s propensity for failure and the intricate electronics that can be challenging to diagnose and repair.

Engine

6.0L Twin-Turbo V12

• Oil Leaks
  • Description/Symptoms: Oil leaks can develop from various points on the engine, including valve cover gaskets, oil pan gasket, and turbocharger lines. Symptoms include visible oil drips, burning oil smell, and low oil level warning.
  • Solution: Replace the leaking gaskets or lines.
  • Estimated Cost to Fix: $200 - $2,000+, depending on the location of the leak and the extent of the repair.
  • Recalls: None Found
• Ignition Coil Failure
  • Description/Symptoms: Misfires, rough idling, and reduced power can occur due to failing ignition coils. The check engine light will illuminate.
  • Solution: Replace the faulty ignition coil(s). It is recommended to replace coils in pairs or all at once.
  • Estimated Cost to Fix: $200 - $600+ per coil, depending on labor.
  • Recalls: None Found
• Turbocharger Issues
  • Description/Symptoms: Reduced boost pressure, whistling noises from the turbochargers, and decreased performance. Can also result in excessive oil consumption.
  • Solution: Repair or replace the turbocharger(s).
  • Estimated Cost to Fix: $3,000 - $8,000+ per turbocharger, including labor.
  • Recalls: None Found

5.5L Biturbo V8

• Oil Leaks
  • Description/Symptoms: Oil leaks around valve cover gaskets, timing chain cover and oil filter housing.
  • Solution: Replace gaskets.
  • Estimated Cost to Fix: $200 - $1,000+
  • Recalls: None Found
• Check Engine Light - Camshaft Adjuster Solenoid
  • Description/Symptoms: Check engine light with associated diagnostic trouble codes.
  • Solution: Replace Camshaft Adjuster Solenoid
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found

Transmission

AMG Speedshift 7G-TRONIC (7-speed automatic)

• Torque Converter Issues
  • Description/Symptoms: Shuddering during gear changes, especially at low speeds. Can also cause unusual noises from the transmission.
  • Solution: Replace or rebuild the torque converter.
  • Estimated Cost to Fix: $2,500 - $5,000+
  • Recalls: None Found
• Valve Body Issues
  • Description/Symptoms: Hard or erratic shifting, slipping between gears, or failure to shift at all.
  • Solution: Replace the valve body.
  • Estimated Cost to Fix: $1,500 - $3,500+
  • Recalls: None Found

Suspension

• AIRMATIC Air Suspension Failure
  • Description/Symptoms: The car sags on one or more corners, the ride becomes excessively bumpy, or the AIRMATIC warning light illuminates. The compressor may also run constantly or fail.
  • Solution: Replace the faulty air strut(s), compressor, or associated valve block.
  • Estimated Cost to Fix: $1,500 - $4,000+ per strut, $800 - $1,500+ for the compressor.
  • Recalls: None Found
• ABC (Active Body Control) Hydraulic Suspension Issues
  • Description/Symptoms: Car leans excessively in corners, ride is harsh or bouncy, or warning lights illuminate. Hydraulic leaks are common.
  • Solution: Repair hydraulic leaks, replace accumulators (spheres), or replace the ABC pump.
  • Estimated Cost to Fix: $500 - $10,000+, depending on the severity of the issue. ABC system repairs can be very expensive.
  • Recalls: None Found

Electrical

• Battery Drain Issues
  • Description/Symptoms: The battery drains quickly, especially if the car sits for a few days. Can be caused by a faulty module not shutting down properly or parasitic draw from aftermarket accessories.
  • Solution: Diagnose and repair the source of the battery drain.
  • Estimated Cost to Fix: $100 - $1,000+, depending on the complexity of the issue.
  • Recalls: None Found
• Command System Malfunctions
  • Description/Symptoms: The COMAND (Cockpit Management and Data) system, which controls navigation, audio, and other functions, can freeze, reboot, or display error messages.
  • Solution: Update the software, replace the COMAND unit, or repair faulty wiring.
  • Estimated Cost to Fix: $300 - $2,500+
  • Recalls: None Found

Exterior

• Adaptive Headlight Malfunctions
  • Description/Symptoms: Headlights do not level correctly, error messages appear, or the headlights fail to adjust to driving conditions.
  • Solution: Replace headlight control modules or the headlights themselves.
  • Estimated Cost to Fix: $500 - $3,000+ per headlight.
  • Recalls: None Found

Interior

• Seat Heater Failure
  • Description/Symptoms: Seat heaters do not warm up or only warm up partially.
  • Solution: Replace the heating element or control module.
  • Estimated Cost to Fix: $300 - $1,000+ per seat.
  • Recalls: None Found
• Sunroof Issues
  • Description/Symptoms: Sunroof makes excessive noise, fails to open or close properly, or leaks.
  • Solution: Repair or replace the sunroof motor, regulator, or seals.
  • Estimated Cost to Fix: $300 - $1,500+
  • Recalls: None Found

Summary

The 2013 Mercedes-Benz S65 AMG, while offering exhilarating performance and luxury, can present owners with a range of potentially costly issues. The engine and suspension systems, in particular, are prone to problems that can lead to significant repair bills. Electrical gremlins and interior component failures can also contribute to the overall cost of ownership. Before purchasing, a thorough inspection by a qualified Mercedes-Benz mechanic is highly recommended. Addressing these common issues can range from a few hundred dollars to upwards of several thousand dollars, depending on the severity and complexity of the repairs needed.