The 2018 Range Rover with the 5.0L supercharged V8 is a capable luxury SUV undermined by catastrophic engine failures and transmission cooling issues. These aren't wear items—they're design flaws that strike without warning and cost more than many used cars.
Catastrophic V8 Engine Failure (Liner/Sleeve Dropping)
Occasional · high severityTypical onset: 40,000-80,000 mi
Symptoms: Sudden coolant loss with no visible external leak, White smoke from exhaust, milky oil, Overheating with cascading misfires, Metallic knocking before total seizure
Fix: Cylinder liners crack or slip in the aluminum block, allowing coolant into cylinders. Only real fix is factory short block or complete engine replacement—35-50 labor hours. Many shops won't touch it; you're looking at dealer rates. Some owners report failures under 50k miles with perfect maintenance history.
Estimated cost: $18,000-28,000
Transmission Oil Cooler Failure and Contamination
Common · high severityTypical onset: 50,000-90,000 mi
Symptoms: Harsh shifting or slipping between gears, Transmission overheating warning on dash, Milky or discolored transmission fluid, Complete transmission failure if coolant mixes with ATF
Fix: Internal cooler fails, allowing coolant and ATF to mix. If caught early, cooler replacement is 4-6 hours. If contamination reaches transmission, you're doing a full rebuild or replacement with complete fluid system flush—20-30 hours total. This kills ZF 8-speeds dead.
Estimated cost: $1,200-2,500 (cooler only); $8,000-14,000 (with transmission damage)
Suspension Air Compressor and Valve Block Failure
Common · medium severityTypical onset: 60,000-100,000 mi
Symptoms: Vehicle sagging on one corner or completely grounded, Suspension fault warning with restricted ride height, Compressor running continuously (hear it cycling), Inability to raise vehicle from access height
Fix: Air suspension compressor works overtime and fails, or valve block leaks. Compressor replacement is 3-4 hours. Valve block adds another 2-3 hours. Air springs themselves also leak but are less expensive. Budget for diagnostics because leaks can be anywhere in the system.
Estimated cost: $1,800-3,500
Timing Chain Stretch and Tensioner Failure
Occasional · high severityTypical onset: 70,000-120,000 mi
Symptoms: Cold-start rattle for first 2-3 seconds that worsens over time, Check engine light with cam/crank correlation codes, Rough idle and reduced power, Catastrophic engine damage if chain jumps
Fix: Supercharged V8 uses plastic-backed tensioners that wear. Chain replacement requires front-end disassembly including supercharger removal—18-24 hours. If chain has already jumped timing, you're looking at bent valves and potential piston damage requiring head work or worse.
Estimated cost: $4,500-7,000 (preventive); $12,000+ (if internal damage)
Infotainment System and Electrical Gremlins
Common · low severitySymptoms: InControl Touch Pro screen freezing or black screen, Backup camera failure or intermittent operation, Random warning lights (check engine, ABS, parking brake), Battery drain when parked, no-start conditions
Fix: InControl system needs software updates or module replacement (2-3 hours). Backup camera recall exists but doesn't fix all units—camera replacement is 1.5 hours. Parasitic draws often trace to gateway modules or convenience control units—diagnosis is the killer at 2-4 hours of electrical diag time.
Estimated cost: $500-2,200
Coolant Crossover Pipe and Thermostat Housing Leaks
Occasional · medium severityTypical onset: 50,000-90,000 mi
Symptoms: Coolant smell in cabin or visible leak under vehicle, Low coolant warning with no obvious external leak, Overheating in traffic or at idle, Steam from engine bay
Fix: Plastic coolant pipes and thermostat housings crack from heat cycling. Located in valley of V8 beneath supercharger—access requires removing intake and blower. 8-12 hours labor. Often discovered during other repairs. Do all coolant hoses and crossover pipes at once or you'll be back in there within a year.
Estimated cost: $2,000-3,800
Avoid unless under factory warranty or you have $20k set aside for the engine replacement lottery—this is a grenaded transmission or dropped cylinder liner away from totaling itself.
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.