The 2007 Range Rover Sport with the 4.4L Jaguar-sourced V8 (not the 5.0L supercharged which came later) is a capable luxury SUV plagued by catastrophic engine failures, transmission cooling issues, and air suspension failures that make it a financial gamble past 80,000 miles.
Catastrophic Engine Failure - Nikasil Cylinder Liner Wear
Common · high severityTypical onset: 60,000-120,000 mi
Symptoms: Excessive oil consumption (1+ quart per 1,000 miles), Cold-start smoke and rough idle, Loss of compression on multiple cylinders, Metallic rattling from engine bay, Check engine light with misfire codes
Fix: Complete engine rebuild or replacement required. Nikasil-coated cylinders wear through to aluminum, especially if low-quality fuel was used. Rebuild includes new pistons, rings, cylinder resleeve or liner replacement, head gaskets, timing chains, and full gasket set. 35-50 hours labor depending on shop familiarity.
Estimated cost: $8,000-15,000
Transmission Oil Cooler Failure and Cross-Contamination
Common · high severityTypical onset: 70,000-110,000 mi
Symptoms: Milky or strawberry-colored transmission fluid, Overheating transmission (limp mode), Coolant loss with no visible leaks, Harsh or delayed shifting, Pink residue in coolant reservoir
Fix: Internal cooler in radiator fails, allowing coolant and ATF to mix. Requires new radiator, full transmission flush (sometimes replacement if contamination severe), new coolant, and often transmission filter/pan service. 8-12 hours labor. Catch it early or transmission is toast.
Estimated cost: $2,500-6,500
Air Suspension Compressor and Bags Failure
Common · medium severityTypical onset: 80,000-130,000 mi
Symptoms: Suspension warning light on dash, Vehicle sitting low, especially rear, Compressor runs constantly (audible whine), Uneven ride height side-to-side, Inability to raise suspension for off-road mode
Fix: Air bags crack at folds, compressor burns out from overwork, or height sensors fail. Single bag replacement is 2-3 hours, compressor is 3-4 hours. Many owners convert to coil springs ($1,500-2,000) to eliminate recurring issues. OEM parts only - aftermarket bags fail quickly.
Estimated cost: $1,800-3,500
Transfer Case Chain and Bearing Failure
Occasional · high severityTypical onset: 90,000-140,000 mi
Symptoms: Grinding or whining from center of vehicle, Clunking when shifting into drive or reverse, Vibration at highway speeds, Metal shavings in transfer case fluid, Four-wheel drive not engaging
Fix: Chain stretches and bearings wear, sometimes grenading catastrophically. Requires transfer case removal, internal rebuild or replacement unit. 12-16 hours labor. Fluid should be changed every 30k miles preventively but rarely is.
Estimated cost: $3,500-5,500
Front Lower Control Arm Bushings Deterioration
Common · low severityTypical onset: 60,000-100,000 mi
Symptoms: Clunking over bumps from front end, Wandering or loose steering feel, Uneven front tire wear, Vibration during braking, Alignment won't hold
Fix: Rubber bushings tear and separate. Can't be replaced separately - entire control arm required per side. 3-4 hours labor for both sides with alignment. OEM arms are $400+ each, quality aftermarket exists.
Estimated cost: $1,200-1,800
Fuel Pump and Fuel Filter Clogging
Occasional · medium severityTypical onset: 70,000-120,000 mi
Symptoms: Rough idle and hesitation under load, Stalling when fuel tank below 1/4, Long crank before starting, Loss of power on highway acceleration, Check engine light with fuel trim codes
Fix: In-tank fuel pump fails or external fuel filter (often neglected) clogs. Filter should be changed every 30k but is hidden under vehicle near fuel tank. Pump replacement requires tank drop. 4-6 hours labor depending on rust/access.
Estimated cost: $800-1,500
Rear Differential Pinion Bearing and Seal Leaks
Occasional · medium severityTypical onset: 80,000-130,000 mi
Symptoms: Whining or howling from rear on deceleration, Gear oil dripping from pinion seal, Clunking when changing from drive to reverse, Vibration at 45-55 mph, Hot metallic smell after highway driving
Fix: Pinion seal leaks are common, but if ignored, bearings fail requiring full diff rebuild. Seal alone is 3-4 hours; rebuild is 8-10 hours. Always replace fluid with correct Land Rover spec - wrong fluid destroys clutch packs.
Estimated cost: $600-2,800
Only buy if you have a $10k+ repair fund and detailed service records proving the engine has been rebuilt or is low-mileage with religious maintenance - otherwise, walk away.
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.