2012 Mitsubishi Montero

The 2012 Mitsubishi Montero, also known as the Pajero in some markets, is a full-size SUV known for its off-road capability and spacious interior. The 2012 Montero was primarily available with a 3.8L V6 engine producing around 250 horsepower and 259 lb-ft of torque, paired with a 5-speed automatic transmission. While appreciated for its ruggedness and reliability, the Montero does have some common issues reported by owners. Some owners like the vehicle for its off-road capabilities and its ample cargo space, while others dislike its fuel economy and dated interior.

Engine

3.8L V6 (6G75)

• Valve Cover Gasket Leaks
  • Description/Symptoms: Oil leaks around the valve covers, leading to a burning smell and potential oil consumption. Visible oil buildup on the engine block near the valve covers.
  • Solution: Replace the valve cover gaskets.
  • Estimated Cost to Fix: $200 - $400
• Oil Leaks
  • Description/Symptoms: Oil leaks around the rear main seal or oil pan gasket are also reported.
  • Solution: Replacing the rear main seal or oil pan gasket.
  • Estimated Cost to Fix: $300-$1,000+

Transmission

5-Speed Automatic

• Shift Solenoid Failure
  • Description/Symptoms: Erratic shifting, harsh shifts, or failure to shift into certain gears.
  • Solution: Replace the faulty shift solenoids.
  • Estimated Cost to Fix: $400 - $800
• Torque Converter Issues
  • Description/Symptoms: Shuddering at low speeds, especially during acceleration.
  • Solution: Replace the torque converter.
  • Estimated Cost to Fix: $800 - $1,500+

Suspension

• Rear Air Suspension Failure (if equipped)
  • Description/Symptoms: Vehicle sagging in the rear, compressor failing to inflate the airbags, and associated warning lights.
  • Solution: Replace the air springs or compressor. Conversion to coil springs is also an option.
  • Estimated Cost to Fix: Air suspension repair $500 - $1,500+, coil spring conversion $800 - $1,200+
• Worn Suspension Bushings
  • Description/Symptoms: Clunking or rattling noises from the suspension, especially over bumps. Reduced handling precision.
  • Solution: Replace worn bushings in control arms, sway bar links, etc.
  • Estimated Cost to Fix: $200 - $600+ depending on which bushings need replacement.

Electrical

• Alternator Failure
  • Description/Symptoms: Battery warning light illuminated, dimming headlights, difficulty starting, or complete electrical failure.
  • Solution: Replace the alternator.
  • Estimated Cost to Fix: $300 - $600
• Power Window Motor Failure
  • Description/Symptoms: Window moves slowly or not at all. Grinding noises when operating the window.
  • Solution: Replace the power window motor.
  • Estimated Cost to Fix: $200 - $400 per window

Exterior

• Rust Issues
  • Description/Symptoms: Rust formation on undercarriage and body panels, especially in areas exposed to road salt.
  • Solution: Rust repair, panel replacement (if severe), rustproofing treatments.
  • Estimated Cost to Fix: $200 - $2,000+ depending on severity and location

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof motor failure, sunroof getting stuck, or water leaks.
  • Solution: Repair or replace the sunroof motor. Seal the sunroof to prevent water leaks.
  • Estimated Cost to Fix: $200 - $800+ depending on the issue.
• HVAC Blower Motor Failure
  • Description/Symptoms: Blower motor not working on all speeds.
  • Solution: Replace the blower motor and/or blower motor resistor.
  • Estimated Cost to Fix: $150-$400

Recalls:

• Recall Number: 17V027000
  • Description: Airbag inflator may rupture.
  • Solution: Dealer will replace the front passenger air bag inflator, free of charge.
• Recall Number: 15V238000
  • Description: Airbag inflator may rupture.
  • Solution: Dealers will inspect and replace the passenger side air bag inflator, free of charge.

Summary

The 2012 Mitsubishi Montero, while generally reliable, exhibits common issues that owners should be aware of. The most frequently reported problems involve oil leaks from the engine, transmission issues such as shift solenoid failure, and suspension problems, especially concerning the optional rear air suspension. Rust can also be a significant concern, particularly in regions with harsh winters. While the severity and cost of these issues can vary, addressing them promptly can help maintain the Montero’s reliability and longevity. The recall for the airbag inflator is a serious safety concern that should be addressed immediately.