2020 LAND ROVER DEFENDER 90

Typical onset: 15,000-50,000 mi

Symptoms: Transmission overheating warning on dash, Limp mode activation, especially when towing or off-roading, Pink or milky transmission fluid indicating coolant cross-contamination, Check engine light with P0218 (transmission over temp) code

Fix: Replace transmission oil cooler and flush both transmission and cooling system to clear cross-contamination. 4-6 hours labor. Early 2020-2021 models had poorly-sealed coolers; Land Rover issued a revised part but no formal recall.

Estimated cost: $1,800-3,200

Typical onset: 5,000-35,000 mi

Symptoms: Sudden loss of power and metallic knocking sound, Oil pressure warning light, Metal shavings in oil during routine change, Engine seizure in extreme cases

Fix: Complete engine replacement or full rebuild including crankshaft, pistons, rods, and bearings. 30-40 hours labor for long-block swap. Affected early production units (build dates through mid-2020) had machining defects in block and crank journals. Land Rover covered under warranty extension but many owners unaware. Verify build date and prior engine work before purchase.

Estimated cost: $18,000-28,000

Typical onset: 30,000-60,000 mi

Symptoms: Clunking or thudding when shifting from Park to Drive/Reverse, Excessive drivetrain vibration at idle in gear, Visible sagging or torn rubber on passenger-side transmission mount

Fix: Replace failed transmission mount. The 8-speed ZF transmission sits on hydraulic mounts that fail prematurely, especially on vehicles used off-road. 2-3 hours labor. OEM mount recommended over aftermarket.

Estimated cost: $600-950

Symptoms: Hard starting or extended cranking when cold, Loss of power under load, Engine stumbling or hesitation during acceleration, Check engine light with fuel system codes

Fix: Replace fuel filter and check for water contamination in fuel system. 1.5-2 hours labor. Note: The P300 mild-hybrid is gasoline, but some markets got diesel Defenders—filter issues plagued those. If you have the I6 gas, this is not a concern.

Estimated cost: $350-600

Symptoms: Pivi Pro screen freezing or going black, Apple CarPlay/Android Auto dropping randomly, Backup camera displaying 'camera unavailable' intermittently, Climate control not responding to inputs

Fix: Software reflash via Land Rover's SDD diagnostic system, sometimes requiring replacement of the infotainment head unit or camera modules. 1-2 hours diagnosis and reflash; 3-4 hours if hardware replacement needed. Most resolved by TSBs and over-the-air updates by 2022.

Estimated cost: $200-1,500

Typical onset: 20,000-70,000 mi

Symptoms: Check engine light with P1E3E or P1E4A codes (hybrid system malfunction), Loss of auto start-stop function, Reduced fuel economy and lack of electric assist, Battery warning on instrument cluster

Fix: Diagnose and replace faulty belt-driven starter-generator (BSG) or 48V lithium-ion battery pack. BSG replacement is 5-7 hours; battery pack is 3-4 hours. Early software calibration issues also cause false faults—always verify with latest software first.

Estimated cost: $2,500-5,500