2010 Mercedes-Benz SL63 AMG

The 2010 Mercedes-Benz SL63 AMG is a high-performance roadster known for its luxurious features and powerful engine. It was equipped with a naturally aspirated 6.2-liter V8 engine producing 518 horsepower and 465 lb-ft of torque. The engine was mated to a 7-speed automatic transmission. Owners generally appreciate the car’s exhilarating performance, refined interior, and iconic design. However, some common complaints include high maintenance costs, complex electronics prone to failure, and a firm ride.

Engine

6.2L M156 V8

• Camshaft Adjuster Bolts (Camshaft Position Actuator Bolts)
  • Description/Symptoms: The original bolts were made of a weaker metal and could shear off inside the engine. Symptoms include a check engine light, rough running, and eventual engine damage.
  • Solution: Replacing the original bolts with updated, stronger bolts.
  • Estimated Cost to Fix: $1,500 - $5,000+ (depending on the severity of the damage if not caught early)
  • Recalls: None Found
• Valve Lifter/Tappet Noise
  • Description/Symptoms: Ticking or tapping noise, especially on cold starts, indicating worn or failing hydraulic valve lifters.
  • Solution: Replacing the affected valve lifters.
  • Estimated Cost to Fix: $2,000 - $4,000+
  • Recalls: None Found
• Oil Leaks (Valve Cover Gaskets, Oil Cooler Lines)
  • Description/Symptoms: Oil leaks from various points on the engine, including valve cover gaskets and oil cooler lines. Visible oil drips and a burning oil smell.
  • Solution: Replacing the leaking gaskets and lines.
  • Estimated Cost to Fix: $200 - $1,500+ (depending on the location and severity)
  • Recalls: None Found

Transmission

7-Speed AMG SPEEDSHIFT MCT (Multi-Clutch Transmission)

• Harsh Shifting/Hesitation
  • Description/Symptoms: Rough or delayed shifts, particularly during upshifts or downshifts. May also include hesitation when accelerating.
  • Solution: A software update could sometimes resolve the issue; however, complete transmission rebuild or replacement can occur.
  • Estimated Cost to Fix: $300 (software update) or $5,000 - $8,000+ (transmission rebuild/replacement)
  • Recalls: None Found
• Transmission Mount Failure
  • Description/Symptoms: Excessive vibration, clunking noises, or a feeling of looseness when accelerating or decelerating.
  • Solution: Replacing the transmission mount.
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found

Suspension

• ABC (Active Body Control) System Leaks/Failures
  • Description/Symptoms: The ABC system is known for developing leaks in its hydraulic lines, struts, and pump. Symptoms include the car sitting unevenly, warning lights, and a stiff or bouncy ride.
  • Solution: Replacing the leaking components. A complete system overhaul may be necessary in severe cases.
  • Estimated Cost to Fix: $500 - $3,000+ per component. Total system overhaul can cost upwards of $10,000.
  • Recalls: None Found
• Air Suspension Issues
  • Description/Symptoms: The Airmatic struts can fail, leading to a saggy suspension or an inability to raise the vehicle. This can be caused by leaks or compressor failure.
  • Solution: Replacing the faulty strut(s) or compressor.
  • Estimated Cost to Fix: $1,000 - $2,500+ per strut.
  • Recalls: None Found

Electrical

• Battery Drain Issues
  • Description/Symptoms: The SL63 can suffer from parasitic battery drain, leading to a dead battery if the car sits for an extended period.
  • Solution: Identifying and addressing the source of the drain, which could be a faulty module or aftermarket accessory.
  • Estimated Cost to Fix: $100 - $1,000+ (depending on the source of the drain).
  • Recalls: None Found
• SAM (Signal Acquisition Module) Failures
  • Description/Symptoms: The SAM units control various electrical functions. Failures can lead to problems with lighting, wipers, power windows, and other electrical systems.
  • Solution: Replacing the faulty SAM unit and programming it to the car.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found

Exterior

• Convertible Top Malfunctions
  • Description/Symptoms: The retractable hardtop mechanism is complex and prone to issues. This can include slow operation, getting stuck, or not opening/closing at all.
  • Solution: Repairing or replacing the hydraulic cylinders, sensors, or control module.
  • Estimated Cost to Fix: $500 - $3,000+ (depending on the complexity of the problem).
  • Recalls: None Found

Interior

• COMAND System Issues
  • Description/Symptoms: The COMAND system can experience various problems, including freezing, crashing, or failure to boot. The navigation system or screen may also fail.
  • Solution: Resetting or updating the COMAND system software. In some cases, the unit may need to be replaced.
  • Estimated Cost to Fix: $100-$300 for software, $1,000-$3,000+ for replacement
  • Recalls: None Found

Summary

The 2010 Mercedes-Benz SL63 AMG offers impressive performance and luxury, but it is also known for its potential maintenance challenges. Engine issues like camshaft adjuster bolt failures and valve lifter noise can be costly to repair. The ABC suspension system and convertible top mechanisms are also known for their complexity and potential for failure. Electrical gremlins and COMAND system problems can also add to the ownership costs. Overall, while a thrilling car to drive, prospective buyers should be prepared for potentially high repair bills and meticulous maintenance to keep the vehicle in top condition.