IsItAGoodCar
Reliability Guide

Common Problems with the
2011 Mitsubishi Lancer Evolution X

A mid-life update brought subtle interior improvements and a focus on the FQ-300 and FQ-330 models. By this point, the Evolution X had cemented its reputation as a highly capable, albeit less visceral, alternative to previous Evos.

What changed for 2011

  • •Minor interior trim updates to improve perceived quality.
  • •Range rationalised to focus on specific FQ power outputs.

Common MOT watch-outs

  • !Wear on brake components, particularly the expensive two-piece front discs on FQ models.
  • !Corrosion on the exhaust system and rear suspension components.
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 2011 Mitsubishi Lancer Evolution X

  • ✓The 5-speed manual gearbox is significantly more robust than the SST automatic; it is the preferred choice for enthusiasts.
  • ✓Check the timing chain for stretching; unlike the old 4G63's belt, the 4B11T uses a chain that can stretch if oil changes are neglected.
2009–20102012–2014
Check a 2011 Mitsubishi Lancer Evolution X by Registration