The 2020 370Z with the VQ37VHR engine is a proven sports car platform, but heat management issues and aggressive driving lead to predictable wear patterns. The manual transmission is bulletproof, but the 7-speed auto has cooling vulnerabilities.
Transmission Oil Cooler Failure (7-speed Auto Only)
Common · high severityTypical onset: 40,000-80,000 mi
Symptoms: transmission overheating warnings, limp mode during spirited driving or hot weather, burnt ATF smell, erratic shifting when hot
Fix: Factory cooler is undersized for performance use. Replace with OEM or aftermarket upgraded unit, flush contaminated fluid. 3-4 hours labor including fluid service.
Estimated cost: $800-1,400
CSC (Concentric Slave Cylinder) Failure (Manual Only)
Common · high severityTypical onset: 30,000-70,000 mi
Symptoms: clutch pedal stays on floor, difficulty shifting into gear, clutch fluid leak visible at bellhousing, sudden loss of clutch engagement
Fix: Internal slave cylinder fails, requires transmission removal. Smart owners upgrade to external conversion kit during repair. 8-10 hours labor for OEM replacement, add 2 hours for conversion kit install.
Estimated cost: $1,200-2,000 OEM, $1,800-2,500 with conversion kit
Fuel Starve Under High-G Cornering
Occasional · medium severitySymptoms: engine hesitation or cutting out in sustained right-hand turns, problem worse below half tank, stumble during track days or aggressive canyon driving
Fix: Factory fuel pump design allows fuel to slosh away from pickup. Aftermarket surge tank or return-style fuel system required for track use. Some owners add simple baffles. 4-6 hours labor for proper fix.
Estimated cost: $600-1,500 depending on solution
Transmission Mount Deterioration
Common · low severityTypical onset: 50,000-90,000 mi
Symptoms: clunking when shifting or launching, excessive driveline vibration, visible tearing or separation in rubber mount, shifter feel becomes vague
Fix: Hydraulic transmission mount fails from spirited driving. Simple swap, accessible from underneath. 1.5-2 hours labor. Upgrade to stiffer polyurethane available.
Estimated cost: $250-450 OEM, $300-500 poly upgrade
Gallery Gasket Oil Consumption (Early VQ37 Engines)
Occasional · medium severityTypical onset: 60,000-120,000 mi
Symptoms: consuming 1+ quart per 1,000 miles, blue smoke on startup or deceleration, oil residue around valve covers, low oil warnings between changes
Fix: Oil gallery gaskets deteriorate, causing excessive consumption. Requires engine disassembly to upper block level. Sometimes warrants used engine swap instead. 18-25 hours labor for in-chassis repair.
Estimated cost: $3,500-6,000 gasket replacement, $4,500-7,500 used engine swap
Steering Lock Module Failure
Occasional · high severitySymptoms: push-button start works but steering won't unlock, error message on dash, stranded in parking lot, clicking noise from steering column on start attempt
Fix: Electronic steering lock motor fails, preventing vehicle from starting. Common across Nissan lineup. Dealer-only programming required. 2 hours labor plus module. Many owners proactively delete/bypass.
Estimated cost: $600-1,000 OEM replacement, $200-400 for aftermarket delete kit
Buy the manual if you can live with the CSC issue, avoid the auto unless it has cooler upgrades—otherwise a solid, reliable sports car platform with known weak points that are manageable.
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.