The 2019 McLaren 570GT uses the M838TE 3.8L twin-turbo V8 and 7-speed dual-clutch transmission. While generally reliable when properly maintained, this platform suffers from known catastrophic engine failures due to rod bearing issues and transmission cooling/mounting problems that can strand the car.
Connecting Rod Bearing Failure (M838TE Engine)
Occasional · high severityTypical onset: 15,000-40,000 mi
Symptoms: Metallic knocking or ticking from engine bay, especially on cold starts, Oil pressure warning light or low oil pressure readings, Metal shavings in oil during analysis, Sudden catastrophic failure with no warning in worst cases
Fix: Complete engine-out rebuild required. Expect 60-80 labor hours minimum for disassembly, bearing replacement, line-honing, reassembly, and break-in. Many owners opt for full short block replacement or upgraded bearings during rebuild. Some specialists recommend preventive bearing replacement at 20k-30k miles.
Estimated cost: $25,000-45,000
Transmission Oil Cooler Failure
Common · high severityTypical onset: 20,000-50,000 mi
Symptoms: Transmission overheating warnings on dash, Limp mode activation during spirited driving, Transmission fluid leaks visible under vehicle, Burnt transmission fluid smell
Fix: Oil cooler replacement requires transmission drop or partial removal for access. 12-18 hours labor depending on shop familiarity. Must flush entire transmission system and replace fluid. Upgraded aftermarket coolers available and recommended.
Estimated cost: $3,500-6,500
Transmission Mount Deterioration
Common · medium severityTypical onset: 30,000-60,000 mi
Symptoms: Clunking or banging when shifting gears, especially 1st to 2nd, Excessive drivetrain vibration at idle, Visible tearing or separation of rubber mount material, Gear selection difficulty or grinding sensations
Fix: Transmission must be lowered for mount access. Plan on 8-12 hours labor. Replace all transmission mounts as a set since if one fails, others are stressed. OEM mounts recommended over aftermarket for this application.
Estimated cost: $2,800-4,200
Fuel Filter Clogging (Especially E85/Track Use)
Occasional · medium severitySymptoms: Intermittent misfires under load above 5,000 RPM, Loss of power at high throttle openings, Rough idle or stumbling acceleration, Fuel pressure fluctuations on scan tool
Fix: Fuel system service requires depressurizing system, filter replacement, and potentially fuel pump inspection. 4-6 hours labor. If car has seen track use or ethanol fuels, inspect entire fuel system for debris. McLaren fuel filters are expensive dealer-only parts.
Estimated cost: $1,200-2,000
Head Gasket Failure (Post-Overheat or High-Mileage)
Rare · high severityTypical onset: 50,000-80,000 mi
Symptoms: White smoke from exhaust, Coolant loss with no visible leaks, Milky oil or oil in coolant reservoir, Overheating or temperature fluctuations
Fix: Engine-out service required for proper access to both cylinder banks. 50-70 hours labor for heads removal, resurfacing, new gaskets, timing components, and reassembly. Often done in conjunction with rod bearing service if engine is already out.
Estimated cost: $18,000-28,000
Shift Solenoid Malfunction (SST Transmission)
Occasional · medium severityTypical onset: 40,000-70,000 mi
Symptoms: Harsh or delayed shifts between gears, Transmission fault codes and warning lights, Stuck in single gear or failure to shift, Erratic shift patterns or missed shifts
Fix: Transmission pan removal and valve body access required. 8-12 hours labor to diagnose specific solenoid, replace mechatronics components, reprogram TCU, and perform adaptive learning procedure. Full solenoid pack replacement recommended over individual units.
Estimated cost: $3,000-5,500
Only buy used if you have $30k-50k set aside for potential engine/transmission rebuilds and can verify complete service history with oil analysis records — this is not a car for the budget-conscious enthusiast.
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.