The 2007 Lancer is Mitsubishi's economy sedan that tends to be reliable through 100k miles, but faces serious CVT transmission and 2.4L engine internal failures beyond that point. Budget examples often have deferred maintenance that accelerates these issues.
CVT Transmission Failure (F1C1A model)
Common · high severityTypical onset: 90,000-140,000 mi
Symptoms: Shuddering or hesitation during acceleration, especially from stop, Whining or grinding noise from transmission, Limp mode activation or transmission overheating warnings, Slipping between gear ratios or loss of forward movement
Fix: CVT replacement is the only reliable fix once internal damage occurs. Transmission oil cooler often fails first and causes overheating. Aftermarket rebuilds are hit-or-miss; most shops recommend used OEM unit with low mileage. 8-12 hours labor for R&R.
Estimated cost: $2,800-4,500
2.4L Engine Internal Failure (4B12 engine)
Occasional · high severityTypical onset: 120,000-180,000 mi
Symptoms: Excessive oil consumption (1 quart per 1,000 miles or worse), Blue smoke from exhaust on startup or acceleration, Knocking or ticking noise from lower engine block, Loss of compression in one or more cylinders
Fix: Piston ring wear and cylinder scoring are common on high-mileage 2.4L engines, especially with extended oil changes. Requires full engine rebuild (pistons, rings, machine work) or used engine swap. 18-24 hours labor for rebuild; 12-16 for swap.
Estimated cost: $3,200-5,800
Front Lower Control Arm Bushing Failure
Common · medium severityTypical onset: 70,000-110,000 mi
Symptoms: Clunking noise over bumps, especially at low speed, Steering wander or vehicle pulling to one side, Uneven front tire wear on inside edge, Vibration through steering wheel at highway speeds
Fix: Front lower control arm bushings deteriorate and tear. Mitsubishi issued a recall for some VINs (see NHTSA 14V-394), but many cars weren't covered. Replace both lower control arms as assembly; bushings alone are difficult to press. 2.5-3.5 hours labor both sides plus alignment.
Estimated cost: $450-750
Head Gasket Failure (2.4L engine)
Occasional · high severityTypical onset: 110,000-160,000 mi
Symptoms: White smoke from exhaust and sweet smell, Overheating without obvious coolant leak, Coolant loss with no visible external leaks, Oil contamination in coolant reservoir or milky oil on dipstick
Fix: Head gasket failure between cylinders or into coolant passages. Must resurface head (often warped). If caught early, head gasket replacement alone works. If overheated severely, cylinder head may crack. 10-14 hours labor; always replace timing belt and water pump while in there.
Estimated cost: $1,800-2,800
Transmission Mount Collapse
Common · low severityTypical onset: 80,000-130,000 mi
Symptoms: Excessive engine movement when shifting into drive or reverse, Clunking sound from engine bay during acceleration or deceleration, Vibration through cabin at idle, especially in drive, Visible sagging of transmission when inspected from below
Fix: Rear transmission mount (engine side) deteriorates from heat and age. Rubber separates from metal bracket. Simple bolt-in replacement but requires supporting transmission. 1.5-2 hours labor.
Estimated cost: $180-320
Headlight Lens Delamination and Moisture Intrusion
Occasional · low severitySymptoms: Condensation or water pooling inside headlight assembly, Yellowing or hazing of headlight lens that doesn't polish out, Intermittent headlight bulb failures on same side, Corrosion on bulb sockets or wiring connectors
Fix: Headlight assemblies develop seal failures around lens-to-housing joint. Mitsubishi issued recall 15V-186 for some models. If not covered, aftermarket assemblies are acceptable quality. 0.5-1 hour labor per side.
Estimated cost: $200-450
Buy the 2.0L manual if you can find one; avoid high-mileage CVT examples and budget extra $3k-5k for potential powertrain work on any 2.4L automatic.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.