2012 PORSCHE 718 BOXSTER S

Typical onset: 40,000-80,000 mi

Symptoms: Excessive oil consumption (more than 1 qt per 1,000 mi), Blue smoke on cold start or under load, Metal flakes in oil during changes, Loss of compression in one or more cylinders, Sudden catastrophic failure with rod knock

Fix: Complete engine rebuild or replacement required—cylinders must be resleeve or replace with Lokasil-coated liners, new pistons, rings, bearings. 40-60 hours labor for full rebuild, 25-35 for used engine swap. Some owners opt for LN Engineering Nickies sleeves during rebuild to prevent recurrence.

Estimated cost: $15,000-25,000

Typical onset: 60,000-100,000 mi

Symptoms: Metal shavings in oil filter, Grinding or whirring noise from engine bay at idle, Sudden loss of oil pressure, Catastrophic engine failure if bearing disintegrates

Fix: The 981 generation has a much-improved IMS design compared to 996/997, but failures still occur. Requires engine removal, rear main seal area access, bearing replacement. Often done during clutch jobs. 18-24 hours labor. Many techs recommend replacement as preventive during any engine-out work.

Estimated cost: $3,500-5,500

Typical onset: 50,000-90,000 mi

Symptoms: Oil pooling under car after sitting overnight, Oil residue on bell housing and transmission, Burning oil smell from exhaust heat, Low oil level warnings

Fix: Requires transmission and clutch removal to access. 12-16 hours labor. Often bundled with clutch replacement if clutch is worn. Seal itself is cheap but labor dominates the cost.

Estimated cost: $2,200-3,800

Typical onset: 70,000-110,000 mi

Symptoms: Transmission fluid spots under front of car, Burnt transmission fluid smell, Transmission overheating warnings on track or spirited driving, Low fluid level detected by system

Fix: Oil cooler lines crack at fittings or cooler itself develops pinhole leaks. Requires front undertray removal, cooler replacement, system flush and refill with PDK fluid. 4-6 hours labor.

Estimated cost: $1,200-2,000

Typical onset: 60,000-100,000 mi

Symptoms: Clunking on hard acceleration or deceleration, Excessive drivetrain movement visible when revving in gear, Vibration at idle that worsens over time, Shifter slop or notchiness (manual trans)

Fix: Both engine mounts and transmission mount degrade from heat and stress. Replace all three together. 6-8 hours labor. Highly recommend upgrading to 981 Cayman GT4 mounts or aftermarket (Numeric Racing, etc.) for longevity.

Estimated cost: $1,500-2,500

Typical onset: null

Symptoms: Coolant smell in cabin or under hood, Visible coolant drips from right side of engine bay, Low coolant warnings, Overheating if leak is severe and unnoticed

Fix: Plastic expansion tank develops stress cracks, especially at mounting points. Tank is accessible without major disassembly. 2-3 hours labor including system burp and pressure test. Replace with updated part number.

Estimated cost: $400-700