The 2018 Range Rover Sport with the 3.0L supercharged V6 is a sophisticated luxury SUV plagued by catastrophic engine failures and chronic transmission cooling issues. This generation suffers from design flaws that lead to expensive powertrain rebuilds, often leaving owners with repair bills exceeding the vehicle's value.
Catastrophic 3.0L Supercharged V6 Engine Failure (Scored Cylinder Walls)
Common · high severityTypical onset: 40,000-80,000 mi
Symptoms: Excessive oil consumption (1+ quart per 1,000 miles), White or blue smoke from exhaust on cold start, Misfires and rough idle, Metal shavings in oil during changes, Check engine light with cylinder misfire codes
Fix: This is the nightmare scenario: cylinder wall scoring leads to complete engine failure. Fix requires short block replacement or full engine rebuild—typically 35-45 labor hours. Many engines fail due to defective piston rings and inadequate cylinder liner hardness. Land Rover issued extended warranty coverage for some VINs, but many owners are left paying out of pocket.
Estimated cost: $15,000-25,000
Transmission Oil Cooler Failure and Line Leaks
Common · high severityTypical onset: 50,000-90,000 mi
Symptoms: Transmission fluid leaking from cooler lines or cooler itself, Burnt transmission fluid smell, Harsh shifting or slipping when fluid is low, Transmission overheating warning on dashboard
Fix: The ZF 8-speed transmission cooler and its lines are poorly designed and fail regularly. Cooler is buried behind the front bumper and requires significant disassembly. If caught early (just leaking), replace cooler and lines—8-12 hours labor. If ignored and transmission overheats, you're looking at transmission rebuild or replacement—add another $5K-8K.
Estimated cost: $2,500-4,000
Transmission Mounts Collapsing
Common · medium severityTypical onset: 60,000-100,000 mi
Symptoms: Clunking or banging when shifting from Park to Drive, Excessive vibration at idle, Transmission feels like it's 'dropping' during acceleration, Visible transmission sag when inspected on lift
Fix: The hydraulic transmission mounts fail prematurely, allowing excessive drivetrain movement. Requires lifting and supporting the transmission to replace mounts—4-6 hours labor. Often both mounts need replacement simultaneously. This is a wear item that shouldn't fail this early, but Land Rover used inadequate mount design.
Estimated cost: $1,200-1,800
High-Pressure Fuel Pump and Filter Clogging
Occasional · medium severityTypical onset: 70,000-110,000 mi
Symptoms: Hard starting or extended cranking, Loss of power under acceleration, Rough running and hesitation, Fuel system pressure codes (P0087, P0088)
Fix: The supercharged V6 uses a high-pressure fuel system that's sensitive to contamination. Fuel filter clogs prematurely, and the high-pressure pump can fail. Filter requires dropping fuel tank or tank removal depending on access—3-5 hours. If pump fails too, add another 2-3 hours and $800-1,200 for pump itself.
Estimated cost: $800-2,500
Backup Camera and Lighting Control Module Failures
Occasional · low severitySymptoms: Backup camera shows 'Camera Not Available' message, Intermittent or permanent camera blackout, Exterior lighting malfunctions (headlights, turn signals, fog lights), Multiple warning lights related to lighting systems
Fix: Multiple NHTSA recalls address camera and lighting control module software/hardware issues. Camera failures often require complete camera module replacement (2-3 hours). Lighting control module requires reprogramming or replacement and can be intermittent nightmare to diagnose (2-4 hours diagnostic time alone). Check for open recalls before paying for these repairs.
Estimated cost: $600-1,800
Supercharger Coupler and Bearing Failure
Occasional · high severityTypical onset: 80,000-120,000 mi
Symptoms: Whining or grinding noise from engine bay that increases with RPM, Loss of power and boost pressure, Check engine light with supercharger performance codes, Visible oil leaking from supercharger nose
Fix: The supercharger coupler (connects supercharger to crankshaft) can fail, and internal bearings wear out. Requires removing supercharger unit, disassembling, replacing coupler and bearings, and reinstalling—12-16 hours labor. If caught early (just noise), rebuild is possible. If catastrophic failure occurs, metal debris can damage the entire intake system.
Estimated cost: $3,500-6,000
Avoid unless you have deep pockets and a masochistic streak—the engine failure rate alone makes this a financial liability, not a luxury purchase.
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.