The 2017 McLaren 570GT uses the M838TE 3.8L twin-turbo V8 and SSG dual-clutch transmission shared across the Sports Series. While exotic-car reliable by supercar standards, these suffer from heat-related engine failures, transmission cooling issues, and labor-intensive drivetrain work that makes even minor fixes expensive.
Piston Ring Land Failure / Cylinder Scoring
Occasional · high severityTypical onset: 25,000-60,000 mi
Symptoms: Excessive oil consumption (quart per 500-1000 miles), White or blue smoke on cold start or under boost, Loss of compression in one or more cylinders, Check engine light with misfire codes P0300-P0308
Fix: Common failure mode where piston ring lands crack due to detonation or heat cycling, requiring complete engine-out rebuild with new pistons, rings, and often cylinder honing or replating. Engine removal alone is 18-24 hours due to mid-engine layout and subframe drop required. Full rebuild runs 60-80 shop hours.
Estimated cost: $35,000-55,000
Transmission Oil Cooler Failure
Common · high severityTypical onset: 30,000-70,000 mi
Symptoms: Transmission overheating warnings on dash, Harsh or delayed shifts when hot, Limp mode activation during spirited driving, Burnt transmission fluid smell
Fix: The SSG dual-clutch relies on a small cooler that clogs or leaks internally. Requires removal of undertray, side bodywork, and coolant system partial drain. Cooler replacement is 8-12 hours, but often coincides with full transmission fluid service. Failure to address leads to clutch pack damage.
Estimated cost: $3,500-6,000
Transmission Mount Failure
Common · medium severityTypical onset: 40,000-80,000 mi
Symptoms: Clunking or banging during takeoff or aggressive shifts, Excessive driveline vibration at idle in gear, Visible sagging of transmission when inspected on lift, Metallic rattling over rough pavement
Fix: The hydraulic transmission mount wears from heat and stress, allowing excessive movement. Replacement requires transmission support and partial suspension drop. 6-9 hours labor. Often both upper and lower mounts need replacement simultaneously.
Estimated cost: $2,200-3,800
Fuel Filter Clogging / Contamination
Occasional · medium severitySymptoms: Lean fuel trims or P0171/P0174 codes, Hesitation or stumble under heavy throttle, Rough idle or stalling after sitting, Reduced power above 5000 RPM
Fix: The high-pressure fuel system is sensitive to contamination. Fuel filter is integrated into the fuel pump module in the tank, requiring tank drop and fuel system depressurization. 5-7 hours labor. McLaren recommends replacement every 4 years regardless of mileage, but many owners skip this.
Estimated cost: $1,800-2,800
Shift Solenoid Pack Degradation
Occasional · medium severityTypical onset: 50,000-90,000 mi
Symptoms: Intermittent transmission fault codes (P0750-P0758 range), Delayed or harsh 2-3 or 5-6 upshifts, Occasional refusal to shift out of lower gears, Flashing gear indicator or limp mode
Fix: The SSG uses internal solenoids that fail from heat cycling and fluid contamination. Requires transmission removal (14-18 hours), case split, and solenoid pack replacement. Often done with clutch pack inspection/replacement as preventive measure while trans is out.
Estimated cost: $8,500-14,000
Head Gasket Failure (Coolant Leak)
Rare · high severityTypical onset: 60,000-100,000 mi
Symptoms: Coolant loss with no visible external leaks, White residue in oil cap or dipstick, Overheating under load, Bubbling in coolant reservoir when running
Fix: Less common than piston failures but catastrophic when it happens. Requires engine removal, heads off, surface inspection, and reassembly with new gaskets and studs. 50-70 hours total. Often combined with full refresh if other wear is evident.
Estimated cost: $28,000-42,000
Buy only with comprehensive pre-purchase inspection and budget $5K-10K annually for preventive care; one major engine or transmission failure erases years of depreciation savings.
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.