Land Rover Discovery V (L462) (2017 – 2021)

Reliability score : 3.5/10

The fifth-generation Land Rover Discovery (L462) marks a radical break from its predecessors. Gone is the very heavy ladder chassis; it adopts an aluminum monocoque structure (D7u) shared with the Range Rover, allowing it to shed up to 480 kg. Positioned as the ultimate family SUV (up to 7 real seats) with unmatched off-road capabilities in its class, it offers royal comfort thanks to its air suspension. However, despite its undeniable road and family qualities, its reliability record is one of the darkest in the premium market, weighed down by fragile diesel engines, temperamental electronics, and major design flaws.

✅ Strengths

Exceptional off-road capabilities (Terrain Response 2)
Masterful ride comfort thanks to the air suspension
Immense interior space, 7 real seats usable by adults
Towing capacity up to 3,500 kg with reversing assistant
Soundproofing and presentation quality worthy of the luxury segment

⚠️ Weaknesses

Catastrophic overall reliability (TÜV 3-year defect rate: 25%, among the worst on the market)
Frequent engine failures on diesels (V6 and 4-cylinder Ingenium)
Fragile air suspension (compressor, sensors, leaks)
Omnipresent electronic bugs (black screens, false alerts, door locks)
Prohibitive maintenance and repair costs out of warranty

🎯 Verdict

The Land Rover Discovery V is an automotive paradox: it is one of the most accomplished family SUVs in terms of comfort, space, and off-road capabilities, but it is also one of the least reliable of its generation. The statistics are damning (What Car? 2/5, TÜV 25% defects at 3 years, ADAC below average). The diesel engines (which represent the majority of the European offering) are particularly at risk: the 2.0 Ingenium suffers from destructive oil dilution, and the 3.0 V6 is known for its crankshaft failures. Buying a used model is an extremely risky financial gamble. If you absolutely must buy one, favor a petrol model (Si4 or Si6) or the recent inline 6-cylinder diesels (D250/D300) post-2021, and demand a manufacturer warranty (Land Rover Approved) covering the entire vehicle.

Common issues

Dysfonctionnements du système AdBlue (SCR) High

🔧 50 000 – 120 000 km

💶 800 – 1 800 €

Utiliser AdBlue de qualité, éviter les faibles niveaux, faire vérifier régulièrement.

Problèmes de vanne EGR et FAP (Filtre à Particules) Medium

🔧 70 000 – 150 000 km

💶 600 – 1 500 €

Effectuer des trajets longs réguliers, faire nettoyer préventivement la vanne EGR.

Défaillance des composants de la suspension pneumatique Medium

🔧 80 000 – 160 000 km

💶 1 000 – 2 000 €

Vérifier l'assiette du véhicule, écouter les bruits anormaux du compresseur.

Dysfonctionnements du système d'infodivertissement (InControl Touch Pro) Low

🔧 Dès 20 000 km

💶 150 – 600 €

S'assurer des mises à jour logicielles régulières pour éviter les bugs.

Problèmes électriques mineurs (capteurs, décharge batterie) Low

🔧 40 000 – 100 000 km

💶 200 – 800 €

Faire diagnostiquer rapidement tout voyant ou dysfonctionnement électrique.

Estimated maintenance costs

Oil change	£130 – 220
Complete brakes	£450 – 800
Estimated annual budget	£700 – 1 400

Indicative estimates (independent garage, UK market). Prices vary by region and year.