2009 LAND ROVER DISCOVERY

Typical onset: 60,000-120,000 mi

Symptoms: Rapid coolant loss with no external leaks, White smoke from exhaust, Overheating episodes, Milky oil on dipstick, Loss of compression in one or more cylinders

Fix: The Jaguar 4.4L V8 suffers from cylinder liners that slip in the aluminum block, causing coolant intrusion into cylinders and catastrophic damage. Only real fix is engine replacement or full rebuild with sleeved block. Short block replacement: 24-30 hours labor. Complete engine rebuild with proper sleeving: 35-45 hours. Most shops recommend used/reman engine swap as more economical.

Estimated cost: $8,000-15,000

Typical onset: 80,000-140,000 mi

Symptoms: Vehicle sagging on one corner overnight, Compressor running constantly, Suspension fault warning on dash, Inability to raise/lower ride height, Compressor overheating

Fix: Air suspension compressor works overtime and fails, often taking out the air dryer and valve block with it. Individual air bags crack and leak, especially rear. Compressor replacement: 3-4 hours. Single air bag: 2-3 hours each. Many owners convert to coil springs ($1,500-2,500 installed) rather than chase air suspension repairs long-term.

Estimated cost: $1,200-3,500

Typical onset: 70,000-110,000 mi

Symptoms: Transmission fluid puddles under vehicle, Pink or red fluid visible near radiator area, Transmission overheating warnings, Rough or delayed shifts when hot

Fix: External transmission oil cooler lines and cooler itself develop leaks, contaminating coolant if internal cooler fails. External cooler line repair: 2-3 hours. Complete cooler replacement with flush of both systems: 5-7 hours. Critical to address immediately as cross-contamination destroys transmission.

Estimated cost: $800-2,200

Typical onset: 90,000-130,000 mi

Symptoms: Harsh clunk when shifting from Park to Drive/Reverse, Excessive vibration at idle, Visible transmission sag when inspected on lift, Driveline shudder under acceleration

Fix: Transmission mount rubber deteriorates, allowing excessive drivetrain movement. Replacement requires supporting transmission and removing crossmember. Single mount: 2-3 hours. Often done alongside engine mounts which fail similarly. Critical for smooth operation.

Estimated cost: $400-900

Symptoms: Hard starting, especially when cold, Loss of power under load, Rough idle or stalling, Check engine light with fuel trim codes

Fix: In-tank fuel filter clogs prematurely, often from deteriorating internal fuel pump components shedding debris. Filter isn't serviceable alone—requires dropping tank and fuel pump module replacement. 4-6 hours labor. Land Rover fuel systems are sensitive to contamination; always use top-tier fuel.

Estimated cost: $800-1,400

Typical onset: 70,000-110,000 mi

Symptoms: Coolant leak from front of engine, Overheating without obvious cause, Squealing noise from accessory belt area, Steam from engine bay

Fix: Plastic thermostat housing cracks, and water pump fails (often bearing or seal). Water pump replacement on this V8: 6-8 hours due to tight packaging. Always replace thermostat housing and hoses at same time. Overheating can trigger the cylinder liner failure, so address immediately.

Estimated cost: $1,200-2,000

Symptoms: Intermittent warning lights with no codes stored, Instrument cluster going dark randomly, Sunroof or windows operating on their own, Battery drain when parked, Tailgate won't open electronically

Fix: Various control modules fail or develop bad grounds/corroded connectors. Common culprits: body control module, instrument cluster, door modules. Diagnosis is time-consuming (2-4 hours troubleshooting typical). Module replacement varies wildly by location. Keep battery terminals clean and check ground points annually.

Estimated cost: $500-2,500