2012 Mercedes-Benz E63 AMG

The 2012 Mercedes-Benz E63 AMG is a high-performance luxury sedan/wagon known for its powerful engine and luxurious features. The primary engine option for this model year is the 5.5L M157 twin-turbo V8, producing 518 horsepower and 516 lb-ft of torque (or 550 hp and 590 lb-ft with the optional Performance Package). A 7-speed MCT (Multi-Clutch Transmission) is standard. Drivers praise the E63 AMG for its exhilarating acceleration, comfortable ride, and high-quality interior. Common complaints include high maintenance costs, potential for expensive repairs, and complex electronics that can be prone to issues.

Engine

5.5L M157 Twin-Turbo V8

• Timing Chain Tensioner Failure
  • Description/Symptoms: Rattling noise upon cold start, especially noticeable from the front of the engine. Can lead to catastrophic engine damage if left unresolved.
  • Solution: Replacement of the timing chain tensioner and potentially the timing chain itself if stretched.
  • Estimated Cost to Fix: $2,000 - $5,000+
  • Recalls: None Found
• Turbocharger Oil Leaks/Failure
  • Description/Symptoms: Blue smoke from the exhaust, decreased engine performance, oil consumption.
  • Solution: Replacement of the turbocharger(s).
  • Estimated Cost to Fix: $4,000 - $8,000+ (for both turbos)
  • Recalls: None Found
• Fuel Injector Failure
  • Description/Symptoms: Rough idle, misfires, check engine light.
  • Solution: Replacement of the faulty fuel injector(s).
  • Estimated Cost to Fix: $500 - $2,000+ (depending on how many need to be replaced)
  • Recalls: None Found
• Oil Leaks (Various Locations)
  • Description/Symptoms: Visible oil leaks from valve cover gaskets, oil cooler lines, or the oil filter housing. Oil spots under the car.
  • Solution: Replacement of the leaking gasket or component.
  • Estimated Cost to Fix: $200 - $1,500+ (depending on the location and severity)
  • Recalls: None Found

Transmission

7-Speed MCT (Multi-Clutch Transmission)

• Harsh Shifting/Jerking
  • Description/Symptoms: Abrupt or jerky shifts, especially during low-speed maneuvers or when downshifting.
  • Solution: Transmission software update, fluid flush, or potentially valve body repair/replacement.
  • Estimated Cost to Fix: $300 - $3,000+
  • Recalls: None Found
• Transmission Slipping
  • Description/Symptoms: Engine revving without corresponding acceleration, delayed engagement of gears.
  • Solution: Transmission repair or replacement.
  • Estimated Cost to Fix: $4,000 - $8,000+
  • Recalls: None Found

Suspension

• Air Suspension Failure (Airmatic)
  • Description/Symptoms: Vehicle sagging on one or more corners, suspension malfunction warning light, compressor running constantly.
  • Solution: Replacement of the air struts, air compressor, or air lines.
  • Estimated Cost to Fix: $1,000 - $4,000+ (per corner for struts; compressor $500+)
  • Recalls: None Found

Electrical

• Electronic Control Unit (ECU) Issues
  • Description/Symptoms: Various warning lights, engine performance problems, transmission issues, or other electrical malfunctions.
  • Solution: ECU reprogramming or replacement.
  • Estimated Cost to Fix: $1,000 - $3,000+
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Dead battery, especially after sitting for a few days.
  • Solution: Identification and repair of the parasitic drain (can be caused by a faulty module, relay, or other electrical component).
  • Estimated Cost to Fix: $100 - $1,000+ (depending on the source of the drain)
  • Recalls: None Found
• COMAND System Malfunctions
  • Description/Symptoms: Freezing, crashing, or other erratic behavior of the infotainment system.
  • Solution: Software update or replacement of the COMAND unit.
  • Estimated Cost to Fix: $200 - $2,000+
  • Recalls: None Found

Exterior

• Headlight Condensation
  • Description/Symptoms: Moisture build-up inside the headlight housing.
  • Solution: Replacing the headlight housing seal, or the entire headlight unit.
  • Estimated Cost to Fix: $100-$2,000+ (depending on the severity and solution)
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof not opening or closing properly, unusual noises during operation.
  • Solution: Repair or replacement of the sunroof motor, regulator, or other components.
  • Estimated Cost to Fix: $300 - $1,500+
  • Recalls: None Found

Summary

The 2012 Mercedes-Benz E63 AMG offers thrilling performance but can be prone to some costly repairs, particularly related to the engine, transmission, and air suspension. Potential buyers should be aware of these potential issues and budget accordingly for maintenance and repairs. The timing chain tensioner, turbochargers, and air suspension components are common points of failure, and electrical issues can also be a concern. The severity of these issues ranges from minor annoyances to major component failures, with repair costs ranging from a few hundred dollars to several thousand. Due to the age of the vehicle, and potential mileage, owners should expect to encounter at least one or more of these issues.