2011 Mercedes-Benz ML63 AMG

The 2011 Mercedes-Benz ML63 AMG is a high-performance SUV equipped with a 6.2L naturally aspirated V8 engine producing 507 horsepower and 465 lb-ft of torque. It was only available with a 7-speed automatic transmission (7G-TRONIC). Owners appreciate its powerful engine, luxurious interior, and sporty handling. Common dislikes include its high fuel consumption and potentially expensive maintenance costs.

Engine

6.2L M156 V8

• Camshaft Adjuster Bolts (Cam Bolts) Failure
  • Description/Symptoms: The original camshaft adjuster bolts (also known as cam bolts) can fail, leading to engine damage. Symptoms can include a ticking noise from the engine, rough running, and potentially complete engine failure if left unaddressed. Early versions of the bolts were the cause of this issue, Mercedes upgraded the part, which has resolved the issue.
  • Solution: Replace the camshaft adjuster bolts with the updated version.
  • Estimated Cost to Fix: $3,000 - $6,000+ depending on the extent of damage.
  • Recalls: None Found
• Valve Lifter Tick
  • Description/Symptoms: A distinct ticking noise originating from the top of the engine. This can be caused by worn or sticking hydraulic valve lifters.
  • Solution: Replacing the affected valve lifters, or in some cases, all of them.
  • Estimated Cost to Fix: $1,500 - $3,000+ depending on the number of lifters needing replacement.
  • Recalls: None Found
• Oil Leaks
  • Description/Symptoms: Oil leaks can occur from various locations, including the valve cover gaskets, oil cooler lines, and front timing cover.
  • Solution: Replace the leaking gaskets or seals.
  • Estimated Cost to Fix: $200 - $1,500+ depending on the source and severity of the leak.
  • Recalls: None Found

Transmission

7G-TRONIC (722.9)

• Torque Converter Failure
  • Description/Symptoms: Shuddering, slipping, or harsh shifting, particularly at lower speeds.
  • Solution: Replacing the torque converter.
  • Estimated Cost to Fix: $2,000 - $4,000+
  • Recalls: None Found
• Valve Body Issues
  • Description/Symptoms: Erratic shifting, delayed engagement, or getting stuck in a gear.
  • Solution: Replacing or rebuilding the valve body.
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found

Suspension

• Air Suspension Failure (Airmatic)
  • Description/Symptoms: The vehicle sits low, sagging, or uneven, often accompanied by a warning light on the dashboard. The air compressor may also be excessively noisy or fail completely.
  • Solution: Replacing the affected air struts, air compressor, or air lines.
  • Estimated Cost to Fix: $800 - $2,000+ per strut; $500-$1,500+ for the compressor.
  • Recalls: None Found
• Air Compressor Failure
  • Description/Symptoms: Slow to rise or vehicle does not rise at all. Can often be heard running excessively, which in turn will burn it out.
  • Solution: Replacing the air compressor.
  • Estimated Cost to Fix: $500 - $1,500+
  • Recalls: None Found

Electrical

• EIS (Electronic Ignition Switch) Failure
  • Description/Symptoms: Key not recognized, difficulty starting the vehicle, or complete inability to start the vehicle.
  • Solution: Replacing the EIS module and potentially reprogramming it to match the vehicle.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found
• SAM (Signal Acquisition Module) Failure
  • Description/Symptoms: Malfunctions with various electrical components, such as lights, wipers, or windows.
  • Solution: Replacing the faulty SAM module.
  • Estimated Cost to Fix: $500 - $1,200+
  • Recalls: None Found

Exterior

• Sunroof Issues
  • Description/Symptoms: Sunroof becomes jammed, difficult to open or close, or makes excessive noise during operation.
  • Solution: Repairing or replacing the sunroof mechanism.
  • Estimated Cost to Fix: $300 - $1,000+
  • Recalls: None Found

Interior

• Navigation/Infotainment System Failure
  • Description/Symptoms: Screen malfunctions, system freezes, or inability to input commands.
  • Solution: Replacing or repairing the infotainment system.
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found
• Seat Heater Malfunction
  • Description/Symptoms: Seat heaters fail to operate or become excessively hot.
  • Solution: Replacing the seat heater element or control module.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found

Summary

The 2011 Mercedes-Benz ML63 AMG offers a powerful and luxurious driving experience, but potential owners should be aware of some common issues. Engine problems, particularly related to camshaft adjuster bolts and valve lifters, can be quite costly. Suspension issues with the Airmatic system are also a common concern. Electrical issues such as EIS and SAM module failures can also contribute to maintenance costs. Overall, while the ML63 AMG is a desirable vehicle, prospective buyers should factor in potentially high repair costs when considering ownership.