The 2011 Range Rover Sport with the 5.0L supercharged V8 is a performance luxury SUV plagued by catastrophic engine failures and transmission cooling issues that can turn a $15,000 used purchase into a $20,000+ repair nightmare. These are not maintenance items—these are fundamental design flaws that strike without warning.
Catastrophic Engine Failure - Nikasil Cylinder Liner Wear and Piston/Ring Failure
Common · high severityTypical onset: 60,000-100,000 mi
Symptoms: Excessive oil consumption (1+ quart per 1,000 miles), Blue smoke on startup or acceleration, Loss of compression across multiple cylinders, Knocking or rattling from engine bay, Check engine light with misfire codes P0300-P0308
Fix: The AJ-V8 engine suffers from weak piston ring lands and cylinder liner wear. Rings collapse, scores cylinder walls, requires complete engine rebuild or replacement. 40-50 hours labor for rebuild, 25-30 hours for short block swap. Often uneconomical to repair given vehicle value.
Estimated cost: $12,000-18,000
Transmission Oil Cooler Failure and Contamination
Common · high severityTypical onset: 70,000-110,000 mi
Symptoms: Transmission slipping or harsh shifts, Milky or strawberry-colored transmission fluid, Coolant loss with no visible leaks, Overheating transmission, Limp mode activation
Fix: Internal transmission cooler in the radiator fails, allowing coolant and ATF to mix. Ruins transmission in days if not caught early. Requires new radiator, complete transmission flush and filter change minimum. If driven after mixing, full transmission rebuild needed. 8-12 hours labor for cooler and flush, 20-25 hours if transmission damaged.
Estimated cost: $2,500-8,500
Timing Chain Tensioner and Guide Failure
Occasional · high severityTypical onset: 80,000-130,000 mi
Symptoms: Rattling noise on cold start that disappears when warm, Rattling from front of engine during acceleration, Check engine light with cam/crank correlation codes, Rough idle or poor performance
Fix: Plastic timing chain guides wear and tensioners fail, causing chain slack. Can jump timing and destroy valves/pistons if it lets go. Must replace all guides, tensioners, and chains (primary and secondary). Requires front-end disassembly and supercharger removal. 18-24 hours labor.
Estimated cost: $4,500-7,000
Supercharger Snout Bearing and Coupler Failure
Occasional · medium severityTypical onset: 90,000-140,000 mi
Symptoms: Whining or grinding noise from supercharger, Loss of power or boost, Check engine light with underboost codes, Metal shavings in supercharger oil
Fix: Eaton supercharger front bearings and rubber isolator coupler wear out. Bearings can seize and grenading supercharger internals. Requires supercharger removal and rebuild or replacement. 12-16 hours labor for R&R and rebuild.
Estimated cost: $3,500-5,500
Transfer Case Chain Stretch and Bearing Failure
Occasional · high severityTypical onset: 80,000-120,000 mi
Symptoms: Grinding or whining noise during acceleration, Clunking when shifting from Park to Drive, Vibration at highway speeds, Metal contamination in transfer case fluid, HDC fault or Terrain Response failure messages
Fix: Chain-driven transfer case develops excessive play as chain stretches and bearings wear. Can fail catastrophically and leave you stranded. Requires transfer case removal and rebuild or replacement. 10-14 hours labor.
Estimated cost: $3,500-6,000
Air Suspension Compressor and Air Line Failures
Common · medium severityTypical onset: 60,000-100,000 mi
Symptoms: Vehicle sitting low at one or more corners, Suspension fault warning on dash, Compressor runs constantly or excessively, Hissing sound near wheels or under vehicle, Inability to raise or lower ride height
Fix: Air springs develop leaks at folds, airlines crack at fittings, and compressor wears out from overwork. Often multiple components fail together. Each air spring 2-3 hours, compressor 3-4 hours, airlines 1-2 hours per corner. Many owners convert to coil springs at $2,000-3,000.
Estimated cost: $1,500-4,500
Water Pump and Thermostat Housing Leaks
Occasional · medium severityTypical onset: 70,000-110,000 mi
Symptoms: Coolant puddles under vehicle, Sweet smell from engine bay, Overheating or temperature fluctuations, Low coolant warning light, Visible coolant weeping from front of engine
Fix: Plastic thermostat housing and water pump develop leaks. Supercharger must be removed for access. Always replace both together along with hoses. 8-12 hours labor due to access challenges.
Estimated cost: $2,000-3,500
Avoid unless under 50,000 miles with impeccable service records and you have $10,000 cash reserved for when—not if—the engine fails. Buy a Lexus GX460 instead.
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.