2010 Mercedes-Benz S65 AMG

2010 Mercedes-Benz S65 AMG

Overview

The 2010 Mercedes-Benz S65 AMG, a pinnacle of luxury and performance, is equipped with a formidable twin-turbocharged V12 engine. While offering exhilarating driving dynamics and a lavish interior, like any high-performance vehicle of its era, it can present specific reliability concerns. This analysis focuses on documented issues beyond routine maintenance, highlighting areas that may require attention for owners. The S65 AMG’s complexity, particularly its advanced powertrain and sophisticated electronic systems, means that potential repairs can be costly and require specialized knowledge. Understanding these potential pitfalls is crucial for maintaining the vehicle’s optimal performance and longevity.

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Engine

6.0L Twin-Turbo V12 (M275)

Turbocharger Failure

• Symptoms: Loss of power, whistling noises, increased exhaust smoke, check engine light.
• Solution: Replacement of affected turbocharger(s).
• Cost: $3,000 - $7,000 per turbocharger

Ignition Coil Failure

• Symptoms: Misfires, rough idling, reduced engine performance, check engine light.
• Solution: Replacement of faulty ignition coil(s).
• Cost: $200 - $500 per coil

Coolant Leaks (Intercooler/Radiator)

• Symptoms: Overheating, visible coolant loss, sweet smell from engine bay.
• Solution: Repair or replacement of leaking intercooler or radiator components.
• Cost: $800 - $2,500

Transmission

5-Speed Automatic (AMG Speedshift)

Torque Converter Issues

• Symptoms: Slipping gears, shuddering during acceleration, delayed engagement.
• Solution: Rebuild or replacement of the torque converter.
• Cost: $1,500 - $3,500

Transmission Control Module (TCM) Failure

• Symptoms: Erratic shifting, ‘limp mode’ engagement, transmission warning lights.
• Solution: Replacement of the TCM.
• Cost: $1,000 - $2,000

Suspension

ABC (Active Body Control) Suspension

Hydraulic Leaks

• Symptoms: Vehicle sagging, uneven ride height, ‘ABC Malfunction’ warning on dashboard.
• Solution: Repair or replacement of leaking hydraulic lines, struts, or pump.
• Cost: $1,000 - $5,000+

ABC Pump Failure

• Symptoms: Loss of hydraulic pressure, vehicle sagging, loud whining noise from pump.
• Solution: Replacement of the ABC hydraulic pump.
• Cost: $1,500 - $3,000

Electrical

Infotainment System

COMAND System Glitches

• Symptoms: Screen freezing, unresponsive buttons, audio issues, navigation problems.
• Solution: Software updates or replacement of COMAND head unit.
• Cost: $500 - $2,500

Sensors (Parking, Rain, etc.)

Sensor Malfunctions

• Symptoms: False warnings, non-functional features (e.g., wipers not activating, parking assist errors).
• Solution: Replacement of faulty sensor(s).
• Cost: $200 - $600 per sensor

Exterior

Standard Chassis

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Interior

Standard Cabin

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

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Summary Verdict

The 2010 Mercedes-Benz S65 AMG is a complex luxury performance sedan. While its V12 engine and advanced systems provide an exceptional driving experience, potential owners should be aware of specific reliability concerns. The Active Body Control (ABC) suspension is prone to hydraulic leaks and pump failures, which can be costly to repair. The twin-turbo V12 engine, while powerful, can experience issues with turbochargers and ignition coils. The transmission, though robust, may develop torque converter or TCM problems. Electrical gremlins, particularly with the COMAND infotainment system and various sensors, are also noted. Regular, specialized maintenance is paramount for mitigating these potential issues and ensuring the longevity of this high-performance vehicle.