2016 Mercedes-Benz G65 AMG

The 2016 Mercedes-Benz G65 AMG is a high-performance, ultra-luxury SUV known for its powerful engine, off-road capability, and distinctive boxy design. While it boasts a prestigious pedigree and exceptional performance, it’s also known for its high maintenance costs and potential for expensive repairs. A common draw to this car is its iconic styling and powerful engine with a unique V12 engine. Some common dislikes are its bulky size, high fuel consumption, and less than stellar handling compared to more modern SUVs. The G65 AMG for 2016 exclusively came with a 6.0L Twin-Turbo V12 engine producing 621 horsepower and 738 lb-ft of torque paired with a 7G-TRONIC automatic transmission.

Engine

6.0L Twin-Turbo V12

• Oil Leaks
  • Description/Symptoms: Oil leaks from various engine seals and gaskets, particularly around the valve covers, oil pan, and turbocharger lines. Visible oil drips under the vehicle, burning oil smell, and low oil level warnings may occur.
  • Solution: Replacement of the leaking seals and gaskets. Thorough cleaning of the affected areas is also necessary.
  • Estimated Cost to Fix: $500 - $3000+ depending on the location and severity of the leak.
  • Recalls: None Found
• Turbocharger Issues
  • Description/Symptoms: The turbochargers can experience failures due to oil starvation or excessive wear. Symptoms include reduced power, turbo lag, whistling noises, and potentially check engine lights.
  • Solution: Replacement or rebuild of the faulty turbocharger(s). Address any underlying causes of oil starvation.
  • Estimated Cost to Fix: $3,000 - $8,000+ (for a pair)
  • Recalls: None Found
• Ignition Coil Failure
  • Description/Symptoms: Misfires, rough idling, and reduced engine performance. Check engine light illumination. V12 engines are particularly sensitive to ignition coil issues.
  • Solution: Replacement of the faulty ignition coil(s). It’s often recommended to replace all coils on one bank for even wear.
  • Estimated Cost to Fix: $200 - $600+ per coil (labor included)
  • Recalls: None Found

Transmission

7G-TRONIC Automatic Transmission

• Torque Converter Issues
  • Description/Symptoms: Shuddering or vibrations during acceleration, especially at lower speeds. Slipping between gears, delayed engagement, and unusual noises from the transmission.
  • Solution: Replacement of the torque converter. Flushing the transmission fluid and inspecting for debris is also recommended.
  • Estimated Cost to Fix: $2,000 - $5,000+
  • Recalls: None Found
• Valve Body Problems
  • Description/Symptoms: Harsh or erratic shifting, delayed gear changes, and potential for the transmission to get stuck in a particular gear.
  • Solution: Replacement or rebuild of the valve body. This often requires specialized knowledge and equipment.
  • Estimated Cost to Fix: $1,500 - $4,000+
  • Recalls: None Found

Suspension

• Air Suspension Failure
  • Description/Symptoms: The G-Wagen utilizes an air suspension system for ride height adjustment and comfort. Issues can arise with air struts leaking, the air compressor failing, or the air distribution block malfunctioning. This results in the vehicle sitting unevenly, a harsh ride, and error messages on the dashboard.
  • Solution: Replacement of the faulty air strut(s), air compressor, or air distribution block. Addressing any leaks in the air lines.
  • Estimated Cost to Fix: $1,500 - $4,000+ per strut, $800 - $2,000+ for the compressor, $500 - $1500+ for the distribution block.
  • Recalls: None Found

Electrical

• Electronic Control Unit (ECU) Issues
  • Description/Symptoms: Various electrical malfunctions, including problems with the infotainment system, driver-assist features, and engine management. Diagnostic codes can be difficult to interpret.
  • Solution: Diagnosis by a qualified Mercedes-Benz technician is crucial. Repair or replacement of the faulty ECU.
  • Estimated Cost to Fix: $1,000 - $4,000+
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Premature battery drain, especially if the vehicle is not driven frequently. This can be caused by a parasitic draw from various electrical components.
  • Solution: Identifying and addressing the source of the parasitic draw. Replacement of the battery if necessary.
  • Estimated Cost to Fix: $100 - $500+ for diagnosis and repair, $200 - $500+ for a new battery.
  • Recalls: None Found

Exterior

• Door Lock Actuator Failure
  • Description/Symptoms: Doors failing to lock or unlock properly, requiring manual operation. This can affect one or more doors.
  • Solution: Replacement of the faulty door lock actuator.
  • Estimated Cost to Fix: $300 - $800+ per door
  • Recalls: None Found

Interior

• Infotainment System Malfunctions
  • Description/Symptoms: Freezing, crashing, or unresponsive infotainment screen. Issues with Bluetooth connectivity, navigation, and audio functions.
  • Solution: Software updates, resetting the system, or replacement of the head unit.
  • Estimated Cost to Fix: $100 - $500+ for software updates, $1,000 - $4,000+ for head unit replacement.
  • Recalls: None Found

Summary The 2016 Mercedes-Benz G65 AMG, while a powerful and luxurious vehicle, is prone to several costly issues. The engine, especially the V12, can suffer from oil leaks, turbocharger problems, and ignition coil failures. The transmission may develop torque converter and valve body issues. The air suspension is also a common source of problems. Electrical glitches and interior component malfunctions can also occur. Overall, owning a G65 AMG requires a significant financial commitment for potential repairs and maintenance. The severity of the issues ranges from moderate to severe, and the cost to fix these problems can range from a few hundred dollars to several thousands, making it a potentially expensive vehicle to maintain.