The 2014 Nissan Cube uses the proven MR18DE 1.8L engine and Nissan's CVT transmission. While the engine is generally reliable, this platform suffers from notorious CVT failures and timing chain issues that can sideline the vehicle unexpectedly.
CVT Transmission Failure
Common · high severityTypical onset: 60,000-120,000 mi
Symptoms: shuddering or jerking during acceleration, whining or grinding noise from transmission, hesitation when accelerating from stop, loss of power or vehicle won't move, check engine light with CVT-related codes P0741, P0868
Fix: Nissan's CVT is a known weak point across multiple platforms. Early fluid changes help but rarely prevent failure. Most require complete CVT replacement (8-12 hours labor). Rebuilt units are available but remanufactured Nissan units are preferred. External cooler can extend life if done preventively.
Estimated cost: $3,500-5,500
Timing Chain Stretch and Guide Failure
Common · high severityTypical onset: 80,000-140,000 mi
Symptoms: rattling noise from engine on cold start that quiets after warmup, check engine light with codes P0011, P0021 (cam timing), rough idle or misfires, metal shavings in oil, catastrophic engine failure if chain jumps timing
Fix: MR18DE engines are prone to timing chain stretch and plastic guide wear. Requires timing chain kit with guides, tensioners, and oil pump chain (12-16 hours labor). Must inspect cam and crank sprockets for wear. Neglecting the rattle leads to jumped timing and bent valves requiring head work or full engine rebuild.
Estimated cost: $1,800-2,800
CVT Cooler Line and Radiator Corrosion
Occasional · medium severityTypical onset: 70,000-110,000 mi
Symptoms: transmission fluid leaking from radiator area, pink or red fluid under vehicle, transmission overheating warning, coolant contamination in CVT (milky fluid), CVT failure following coolant cross-contamination
Fix: Factory CVT cooler integrated into radiator can corrode, causing leaks or catastrophic cross-contamination. If coolant mixes with CVT fluid, entire transmission must be replaced. Preventive fix is external CVT cooler bypass (4-6 hours). If just lines leaking, replace lines and add external cooler.
Estimated cost: $600-1,200
Lifter Tick and Valve Train Noise
Occasional · medium severityTypical onset: 90,000-150,000 mi
Symptoms: ticking or tapping noise from valve cover area, noise persists after engine warms up, noise worsens with low oil or extended oil change intervals, occasional misfire codes
Fix: MR18DE lifters can collapse or wear, causing persistent ticking. Often caused by extended oil changes or low oil level. Requires valve cover removal and lifter replacement (6-8 hours labor). Some cases require cylinder head removal if cam lobes show wear. Always check timing chain condition while in there.
Estimated cost: $800-1,500
Ignition Switch Recall Issues
Occasional · medium severitySymptoms: engine shuts off while driving, key won't turn in ignition, intermittent no-start condition, loss of power steering and brakes while driving
Fix: NHTSA recall for ignition switch that can turn off unexpectedly due to switch contact wear. Nissan recall replaces ignition switch assembly (1.5-2 hours). Check if vehicle had recall completed. If not done and switch is faulty, this is a safety-critical repair covered under recall.
Estimated cost: $0 if recall work, $300-500 if not covered
Transmission Mount Failure
Occasional · low severityTypical onset: 60,000-100,000 mi
Symptoms: clunking when shifting from park to drive, excessive vibration at idle, visible engine movement when accelerating, transmission seems to drop or lurch
Fix: CVT transmission mount (upper mount especially) wears and collapses from CVT weight and vibration. Simple replacement job (1.5-2.5 hours labor). Often done in conjunction with CVT service or replacement. Replace both upper and lower mounts as a set for best results.
Estimated cost: $250-450
Avoid unless CVT has been replaced recently and timing chain done — too many expensive failures waiting to happen on higher-mileage examples.
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.