2020 INFINITI Q60

Typical onset: 40,000-80,000 mi

Symptoms: Milky or pink transmission fluid, Chocolate milk appearance in coolant reservoir, Transmission slipping or harsh shifts, Engine misfires or rough idle after cooler breach, Catastrophic engine failure if undetected

Fix: The Mercedes 9G-Tronic transmission has an internal oil cooler that can rupture, mixing coolant and ATF, then sending contaminated fluid into the engine via the cooler lines. Requires immediate transmission cooler replacement, complete fluid flush of both systems, and often engine teardown if contamination reached bearings. If caught early: 6-8 hours. If engine damage occurred: 20-30 hours for short block or full rebuild.

Estimated cost: $2,500-$15,000

Typical onset: 30,000-70,000 mi

Symptoms: Metallic knocking or rattling under load, Loss of power, Check engine light with misfire codes, Catastrophic failure with rod knock, Metal shavings in oil

Fix: Early VR30 engines (pre-2019 in some cases, but 2020s still affected) can experience pre-ignition detonation that cracks ringlands, scores cylinder walls, or spins bearings. Infiniti issued TSB NTB19-032a addressing this. Requires complete engine rebuild or short block replacement: piston rings, bearings, machine work, or full long block swap. 25-35 hours labor for rebuild, 18-22 for short block R&R.

Estimated cost: $8,000-$16,000

Typical onset: 50,000-90,000 mi

Symptoms: Clunking when shifting from park to drive, Excessive vibration at idle, Transmission appears to 'drop' into gear harshly, Visible sagging or torn rubber on mount

Fix: The rear transmission mount fatigues and tears, especially on Red Sport 400 models with the 400hp tune. Replacement is straightforward: support transmission, unbolt old mount, install new OEM or upgraded polyurethane unit. 1.5-2 hours labor.

Estimated cost: $300-$550

Typical onset: 60,000-100,000 mi

Symptoms: Hesitation or stumbling under hard acceleration, Limp mode activation, P0087 fuel rail pressure too low code, Rough idle when hot

Fix: The high-pressure fuel pump has an internal filter screen that clogs with debris, starving the direct injection system. Requires pump removal and filter replacement or full pump swap if filter is integrated. Tank drop or pump access through rear seat area depending on tech approach. 3-4 hours labor.

Estimated cost: $600-$1,200

Typical onset: 40,000-80,000 mi

Symptoms: Rattling noise at idle or light throttle (sounds like marbles), No performance loss initially, Noise disappears under boost, P0244 or P0299 codes if wastegate sticks

Fix: Twin turbos can develop wastegate actuator arm play or carbon buildup causing rattle. Often just an annoyance, but can lead to boost control issues if ignored. Turbo removal, wastegate actuator replacement or turbo rebuild. 8-12 hours labor for both turbos.

Estimated cost: $2,000-$4,500

Symptoms: Steering wheel won't unlock, car won't start, Dash warning: 'Steering lock malfunction', Clicking noise from steering column when attempting to start, No pattern to failure - can happen hot or cold

Fix: Inherited problem from older Infiniti platforms but still present in some Q60s. Electronic steering lock motor fails, physically locking the steering wheel. Requires steering lock module replacement behind the column shroud. 2-3 hours labor. Many owners preemptively pull the fuse to disable the system.

Estimated cost: $500-$900