2010 Mercedes-Benz SL65 AMG

2010 Mercedes-Benz SL65 AMG

Overview

The 2010 Mercedes-Benz SL65 AMG, a high-performance roadster, is known for its potent V12 engine and luxurious appointments. While generally well-engineered, like any complex, high-performance vehicle, it can experience specific issues that owners should be aware of. This analysis focuses on documented reliability concerns beyond routine maintenance, highlighting areas that may require attention. The SL65 AMG’s advanced technology and powerful drivetrain, while exhilarating, can also be sources of potential repair needs. Owners should prioritize regular, specialized maintenance to mitigate these risks and ensure the longevity of this exceptional vehicle.

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Engine

6.0L Twin-Turbo V12 (M275)

Turbocharger Wastegate Actuators

• Symptoms: Reduced engine power, boost pressure issues, check engine light.
• Solution: Replacement of faulty wastegate actuators.
• Cost: $800 - $1500

Intercooler System Leaks

• Symptoms: Overheating, loss of power, rough idle.
• Solution: Repair or replacement of intercooler hoses and components.
• Cost: $500 - $1200

Ignition Coil Failure

• Symptoms: Misfires, rough running, check engine light.
• Solution: Replacement of faulty ignition coils.
• Cost: $300 - $600 per coil

Transmission

5-Speed Automatic (722.6)

Transmission Control Module (TCM) Failure

• Symptoms: Erratic shifting, failure to shift, limp mode.
• Solution: Replacement or repair of the TCM.
• Cost: $1000 - $2500

Torque Converter Issues

• Symptoms: Slipping, shuddering, delayed engagement.
• Solution: Replacement of the torque converter.
• Cost: $1500 - $3000

Suspension

Active Body Control (ABC) System

Hydraulic Fluid Leaks

• Symptoms: Vehicle sagging, suspension warning lights, stiff ride.
• Solution: Repair or replacement of leaking lines, struts, or pump.
• Cost: $1000 - $4000+

ABC Pump Failure

• Symptoms: Loss of hydraulic pressure, vehicle sagging, suspension warning.
• Solution: Replacement of the ABC pump.
• Cost: $1200 - $2500

Electrical

Infotainment System

COMAND System Glitches

• Symptoms: Screen freezing, audio issues, navigation problems.
• Solution: Software updates or replacement of the COMAND unit.
• Cost: $500 - $2000

Convertible Top Hydraulics

Hydraulic Pump/Cylinder Failure

• Symptoms: Convertible top not operating, slow operation, leaks.
• Solution: Repair or replacement of hydraulic components.
• Cost: $800 - $2000

Exterior

Headlight Ballasts

Xenon Headlight Ballast Failure

• Symptoms: One or both headlights not illuminating, flickering.
• Solution: Replacement of the headlight ballast.
• Cost: $300 - $700 per ballast

Interior

Seat Actuators

Power Seat Adjustment Failure

• Symptoms: Difficulty adjusting seats, seats stuck in position.
• Solution: Replacement of faulty seat motors or control modules.
• Cost: $400 - $900 per seat

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Summary Verdict

The 2010 Mercedes-Benz SL65 AMG is a formidable performance machine with a complex engineering pedigree. While it offers exhilarating performance, potential owners should be prepared for the possibility of significant repair costs, particularly concerning the Active Body Control (ABC) suspension, the twin-turbo V12 engine’s ancillary systems, and the robust but complex transmission. Electrical gremlins, especially within the infotainment and convertible top systems, can also arise. Despite these potential issues, with diligent maintenance and prompt attention to any developing problems, the SL65 AMG can remain a rewarding and reliable exotic car.