The 2018 Fairlady Z (370Z) with the VQ37VHR is a solid sports car platform, but the 7-speed automatic transmission is problematic and the VQ37 timing chain system has known weak points that emerge in the 80k-120k mile range. Manual transmission cars are far more durable.
7-Speed Automatic Transmission Failure (RE7R01A)
Common · high severityTypical onset: 60,000-100,000 mi
Symptoms: Harsh shifting or flaring between gears, especially 2-3 and 5-6, Transmission slipping under load or refusing to shift, Metal debris in fluid during service, Valve body fault codes (P17F0, P17F5)
Fix: Valve body replacement is a band-aid; most need full rebuild or reman unit. Transmission removal is 8-12 hours labor. Nissan revised valve bodies twice but core design remains fragile under spirited driving.
Estimated cost: $4,500-7,500
Timing Chain Guide and Tensioner Wear (VQ37VHR)
Occasional · high severityTypical onset: 80,000-130,000 mi
Symptoms: Cold-start rattle for 2-5 seconds that worsens over time, Metallic grinding noise from front of engine, Check engine light with cam/crank correlation codes, Plastic debris in oil during changes
Fix: Upper and lower chain guides crack, tensioners lose pressure. Full timing chain job requires engine out or front subframe drop—book time is 18-24 hours. Must replace all guides, tensioners, and chains as a kit. Neglect leads to jumped timing and valve contact.
Estimated cost: $3,500-5,500
CSC (Concentric Slave Cylinder) Failure - Manual Only
Common · medium severityTypical onset: 40,000-80,000 mi
Symptoms: Clutch pedal stays on floor or feels spongy, Difficulty shifting into gear with engine running, Fluid leak visible at bell housing, Grinding when engaging gears
Fix: Internal slave cylinder fails, requires transmission removal. 6-8 hours labor. Upgrade to HD aftermarket unit (Z Speed, ZFG) strongly recommended over OEM replacement—OEM will fail again. Many owners do clutch while trans is out.
Estimated cost: $1,200-2,000
Transmission and Differential Mounts Deteriorate
Common · low severityTypical onset: 50,000-90,000 mi
Symptoms: Clunking on launch or deceleration, Excessive driveline vibration at idle in gear, Shifter buzz or rattling through center console, Visible cracking or tearing of rubber isolators
Fix: Factory mounts are soft and tear under spirited use. Transmission mount is 2 hours, diff mount is 1.5 hours. Polyurethane upgrades available but increase NVH. Alignment check needed after diff mount replacement.
Estimated cost: $400-800
Fuel System Varnish and Pump Wear
Occasional · medium severityTypical onset: 70,000-110,000 mi
Symptoms: Extended cranking before start, especially when hot, Hesitation or stumble under hard acceleration, Low fuel pressure codes (P0087), Whining noise from tank area
Fix: Direct injection system accumulates varnish, fuel pumps fail earlier with ethanol fuel. Pump replacement is 3-4 hours (tank drop), injector cleaning or replacement adds significant cost. Fuel filter is integrated into pump assembly, not serviceable separately on most model years.
Estimated cost: $800-2,200
Gallery Gasket Oil Leaks
Occasional · medium severityTypical onset: 90,000-140,000 mi
Symptoms: Oil drips from rear of engine near bell housing, Low oil level between changes despite no external leaks, Oil seepage visible at engine/transmission junction, Burning oil smell after hard driving
Fix: VQ37 has internal oil gallery gaskets that seep with age. Requires engine out for proper access—16-20 hours labor. Often combined with rear main seal and other gaskets while apart. Not an immediate failure but progressively worsens.
Estimated cost: $2,800-4,200
Buy a manual transmission example under 70k miles with service records—avoid the 7-speed auto unless you budget for transmission replacement.
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.