IsItAGoodCar
Reliability Guide

Common Problems with the
2015 Mitsubishi Lancer Evolution X

The final production year of the Evolution X marked the end of the legendary Lancer Evolution lineage. Final 'FQ-440 MR' run-out editions are incredibly rare and highly prized collector's items.

What changed for 2015

  • •Final year of production, concluding a legendary lineage.
  • •Release of the ultra-limited, 440bhp 'FQ-440 MR' special edition.

Common MOT watch-outs

  • !General wear and tear; high-performance components require rigorous maintenance.
  • !Minor oil weeps from the engine or drivetrain.
3
Known Issues
2
Serious
1
Moderate
0
Minor

All Known Issues

AYC Pump Corrosion and Failure

SeriousElectrics & Electronics

The Active Yaw Control pump is mounted in a vulnerable position and corrodes badly on UK cars, bringing warning lights and expensive drivetrain-control faults.

Est. Repair Cost: £600–£1,500
Warning Signs:

AYC or ASC warning lights, Drive mode faults, Pump noise or no response from the system

What to Inspect:
  • Scan for AYC-related faults
  • Inspect the pump area for corrosion if possible
  • Ask whether the pump has been rebuilt or relocated
Verified by IsItAGoodCar Research Team

SST Twin-Clutch Judder or Failure

SeriousGearbox & Transmission

SST cars are very sensitive to correct fluid and calibration; neglected boxes can judder, skip gears or fail outright with huge repair bills.

Est. Repair Cost: £1,500–£4,000
Warning Signs:

Jerky pull-away, Refusal to select gears, Transmission warning or limp mode

What to Inspect:
  • Drive the car in traffic and under full load
  • Demand proof of SST fluid servicing
  • Be wary of any hesitation when engaging Drive or Reverse
Verified by IsItAGoodCar Research Team

Rear Subframe and Underbody Corrosion

ModerateBodywork & Rust

Even specialist-owned Evo Xs can rust underneath in the UK, particularly around the rear subframe and suspension pick-up points.

Est. Repair Cost: £400–£2,000
Warning Signs:

Heavy rust on rear subframe, Corrosion advisories on MOT history, Fresh underseal without photo evidence

What to Inspect:
  • Inspect the rear subframe and suspension mounts
  • Read MOT history for corrosion notes
  • Check whether the car has had proper cavity wax or underbody protection applied
Verified by IsItAGoodCar Research Team

Buying Tips for 2015 Mitsubishi Lancer Evolution X

  • ✓Late models, particularly manual FQ-360s or the FQ-440 MR, command a massive premium; originality and an immaculate history are essential.
  • ✓Verify the car has not been subjected to cheap aftermarket modifications, which severely damage its long-term value.
2012–20142016
Check a 2015 Mitsubishi Lancer Evolution X by Registration