Mitsubishi Lancer Evolution X Common Problems & Reliability
The final Evo is a hugely capable AWD performance saloon, but it is now a specialist enthusiast buy rather than a cheap fast Mitsubishi. The best cars have specialist histories, sensible modifications and proof that drivetrain fluids have been treated as consumables rather than lifetime fills.
Select a Model Year Period
Detailed fault breakdown, symptoms, and estimated repair bills by production year.
Most Common Mitsubishi Lancer Evolution X Faults & Repair Costs
AYC Pump Corrosion and Failure
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.
AYC or ASC warning lights, Drive mode faults, Pump noise or no response from the system
- Scan for AYC-related faults
- Inspect the pump area for corrosion if possible
- Ask whether the pump has been rebuilt or relocated
SST Twin-Clutch Judder or Failure
SST cars are very sensitive to correct fluid and calibration; neglected boxes can judder, skip gears or fail outright with huge repair bills.
Jerky pull-away, Refusal to select gears, Transmission warning or limp mode
- 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
Rear Subframe and Underbody Corrosion
Even specialist-owned Evo Xs can rust underneath in the UK, particularly around the rear subframe and suspension pick-up points.
Heavy rust on rear subframe, Corrosion advisories on MOT history, Fresh underseal without photo evidence
- 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
Buying a used Mitsubishi Lancer Evolution X? Always check for hidden finance and write-off history.
Mechanical problems are only half the battle. Over 1 in 3 UK used cars checked have unpaid finance or accident write-off records that could cause you to lose the car or thousands in value.