Land Rover Discovery L319
Weaknesses, engine ratings and buying advice
340 PS
Discovery · Benzin
Discovery 3.0 SC: supercharged V6 for off-road enthusiasts
Fun to Drive!190 PS
2.7L V6 TDV6 Diesel Diesel
6 weaknesses
Stay Away!Generations
Engine Overview
The Land Rover Discovery L319 is available with 6 engine variants — from 190 to 381 hp.
The notorious Land Rover 2.7-litre V6 diesel with a systematic crankshaft bearing design weakness (documented in Service Bulletin SSM71816). Oil cooler leak (oil/coolant mixing) is this engine's trademark failure. Only buy with a complete and unbroken service history and confirmed oil cooler check. Short oil change intervals (max. 10,000 km) are non-negotiable.
- !! Oil cooler leak: oil-coolant cross-contamination from 150,000 km
The 276DT oil cooler is legendarily prone to internal leakage. Engine oil gets into the coolant or vice versa. A chocolate-coloured emulsion on the coolant cap is a warning sign. Left untreated, engine damage follows.
Symptoms: Brown emulsion in the coolant reservoir, coolant loss without visible external leak, rising oil temperature - !! Crankshaft bearing failure from design weakness from 180,000 km
Known design flaw: the crankshaft can crack between the second and third main bearing. Bearing shells spin in operation and block oil galleries — oil starvation leads to engine destruction. LR service bulletin SSM71816 documents the fault.
Symptoms: Dull knocking from the engine block (worse under load), oil pressure warning light, metal swarf in the oil filter - !! Injector seal leak accelerates bearing wear from 120,000 km
Leaking injector seals allow fuel to enter the engine oil. This dilutes the oil and significantly accelerates bearing wear. The combination of oil cooler failure and injector problems frequently results in total engine loss.
Symptoms: Fuel smell in oil, rising oil level (fuel in oil), increased bearing noise
+ 3 more engine weaknesses + vehicle weaknesses
3.0-litre successor to the 276DT with the same structural crankshaft bearing weaknesses. Timing chains and injectors add further problem areas. Engine replacement costs of £5,000–£10,000 are a real possibility. Very short oil change intervals (max. 8,000 km) are mandatory. Only buy with complete documentation.
- !! Crankshaft bearing failure from design weakness from 180,000 km
The 306DT inherits the narrow crankshaft design of the 276DT. Bearing shells spin in operation and block oil galleries. Service bulletin SSM71816 covers 3.0L versions as well. Engine replacement costs £6,000–12,000.
Symptoms: Rhythmic knocking from the lower engine block (worse under load), oil pressure loss, metal particles in the oil filter - !! Timing chain and tensioner wear from 100,000 km
From around 80,000 km the 306DT chain tensioners and guides can wear. Rattling on cold start is the typical early warning. Left unattended, chain jump and engine damage follow.
Symptoms: Metallic rattling on cold start (disappears once warm), check engine light, P0008/P0016/P0017 - !! Injector over-fuelling with piston damage from 140,000 km
Certain 306DT injectors can over-fuel, causing extreme heat buildup in the cylinder and piston melting. Metal particles from the resulting damage destroy other engine components.
Symptoms: Individual cylinder power loss, rough engine noise, fault codes on individual injectors, metallic sounds
+ 2 more engine weaknesses + vehicle weaknesses
3.0-litre successor to the 276DT with the same structural crankshaft bearing weaknesses. Timing chains and injectors add further problem areas. Engine replacement costs of £5,000–£10,000 are a real possibility. Very short oil change intervals (max. 8,000 km) are mandatory. Only buy with complete documentation.
- !! Crankshaft bearing failure from design weakness from 180,000 km
The 306DT inherits the narrow crankshaft design of the 276DT. Bearing shells spin in operation and block oil galleries. Service bulletin SSM71816 covers 3.0L versions as well. Engine replacement costs £6,000–12,000.
Symptoms: Rhythmic knocking from the lower engine block (worse under load), oil pressure loss, metal particles in the oil filter - !! Timing chain and tensioner wear from 100,000 km
From around 80,000 km the 306DT chain tensioners and guides can wear. Rattling on cold start is the typical early warning. Left unattended, chain jump and engine damage follow.
Symptoms: Metallic rattling on cold start (disappears once warm), check engine light, P0008/P0016/P0017 - !! Injector over-fuelling with piston damage from 140,000 km
Certain 306DT injectors can over-fuel, causing extreme heat buildup in the cylinder and piston melting. Metal particles from the resulting damage destroy other engine components.
Symptoms: Individual cylinder power loss, rough engine noise, fault codes on individual injectors, metallic sounds
+ 2 more engine weaknesses + vehicle weaknesses
3.0-litre successor to the 276DT with the same structural crankshaft bearing weaknesses. Timing chains and injectors add further problem areas. Engine replacement costs of £5,000–£10,000 are a real possibility. Very short oil change intervals (max. 8,000 km) are mandatory. Only buy with complete documentation.
- !! Crankshaft bearing failure from design weakness from 180,000 km
The 306DT inherits the narrow crankshaft design of the 276DT. Bearing shells spin in operation and block oil galleries. Service bulletin SSM71816 covers 3.0L versions as well. Engine replacement costs £6,000–12,000.
Symptoms: Rhythmic knocking from the lower engine block (worse under load), oil pressure loss, metal particles in the oil filter - !! Timing chain and tensioner wear from 100,000 km
From around 80,000 km the 306DT chain tensioners and guides can wear. Rattling on cold start is the typical early warning. Left unattended, chain jump and engine damage follow.
Symptoms: Metallic rattling on cold start (disappears once warm), check engine light, P0008/P0016/P0017 - !! Injector over-fuelling with piston damage from 140,000 km
Certain 306DT injectors can over-fuel, causing extreme heat buildup in the cylinder and piston melting. Metal particles from the resulting damage destroy other engine components.
Symptoms: Individual cylinder power loss, rough engine noise, fault codes on individual injectors, metallic sounds
+ 2 more engine weaknesses + vehicle weaknesses
3.0-litre V6 Supercharged as the smaller blower option. The coolant crossover pipe beneath the supercharger is system-critical — if it fails, engine damage is often unavoidable. Preventive replacement with aluminium pipes is strongly recommended. Check supercharger coupling and timing chain regularly. Water pump replacement requires supercharger removal (expensive).
- !! Plastic coolant pipe under supercharger bursts from 100,000 km
The plastic coolant crossover pipe running under the supercharger cracks suddenly from embrittlement. The engine is often irreparably overheated before the temperature warning appears. Very common cause of engine damage. Upgrade to aluminium pipes strongly recommended.
Symptoms: Sudden coolant loss (often instantaneous), overheating warning, steam, potential engine damage - !! Timing chain and guides wear from 110,000 km
Like the V8 versions, the AJ126 has timing chains with plastic guides. From around 100,000 km guides and tensioners can deteriorate. The supercharger setup increases engine load and accelerates wear.
Symptoms: Metallic rattling on cold start, P0008/P0016, engine light - !! Supercharger torsional coupler wears out from 90,000 km
The Eaton Roots supercharger torsional coupler breaks apart. The rattling sounds like gravel in the supercharger at idle and disappears under load. Land Rover TSB available. Typical failure around 90,000–110,000 km.
Symptoms: Rattling from supercharger at idle, decreasing supercharger output, power drop
+ 1 more engine weaknesses + vehicle weaknesses
Jaguar-developed V8 (4.4L), not a BMW M62 — more robust and longer-lived than its predecessor. Timing chain with plastic guides and VANOS seals need attention over time. Check the PCV system regularly. More reliable than many Land Rover diesels when properly maintained.
- !! Plastic timing chain guide breaks from 120,000 km
The BMW M62 uses a very long single-row timing chain with plastic guides. The guides can break and shed fragments into the sump. Sunken fragments can block the oil pump pickup — engine damage possible.
Symptoms: Cold start rattling (chain tensioner), plastic particles in engine oil, check engine light, misfires - !! VANOS seals worn: clatter and power loss from 100,000 km
The VANOS units (BMW variable camshaft timing) deteriorate over time. Seals become porous, the cam phasers clatter and tick. The engine loses power and responsiveness at low RPM.
Symptoms: Tactile diesel-like clatter from the cylinder head at low RPM, power loss in the lower rev range, P0011/P0021 - !! Thermostat (105°C) and cooling system failures from 100,000 km
All M62-equipped L322s were delivered with a 105°C thermostat. The thermostat and coolant hoses are prone to premature wear. Heater hose connectors frequently break.
Symptoms: Coolant loss, overheating, broken heater connections, coolant warning light
+ 1 more engine weaknesses + vehicle weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| Air suspension compressor failure The air suspension compressor is the Achilles heel of the L319. Leaking air springs or valve blocks overload it until it fails. Early models with the Hitachi compressor are particularly vulnerable. Symptoms: Air suspension warning light, vehicle sags after parking, 'Normal height only available' message, compressor runs non-stop from 100,000 km | Medium | |
| Air springs porous and leaking Air springs on the front and rear axle become porous after 8–12 years. Air escapes slowly — vehicle sags after standing. Ignoring this damages the compressor and valve block. Symptoms: Vehicle sags overnight when parked, air suspension warning light, uneven ride height, compressor runs constantly from 120,000 km | High | |
| Front control arms and bushes worn Front lower control arms and anti-roll bar bushes wear and produce knocking and clunking at low speed. Wheel alignment wanders. Symptoms: Knocking and clunking from the front over bumps and during steering input, steering pulls to one side, uneven tyre wear from 90,000 km | Medium | |
| Rear anti-roll bar bushes and drop links worn Rear anti-roll bar bushes and drop links wear and cause clunking and vague cornering. Typical symptom after 80,000–120,000 km. Symptoms: Clunking from the rear over bumps, vague cornering behaviour, rattling from the rear axle at low speed over rough surfaces from 90,000 km | Low |
Top Reported Issues
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Known Problems and Issues +
A total of 28 weaknesses have been documented for the Land Rover Discovery L319 (2004–2017) — 19 engine-related and 9 vehicle-related. 3 problem engines: 276DT (2.7L V6 TDV6 Diesel), 306DT (3.0L V6 Diesel), AJ126 (3.0L V6 Supercharged). Typical issues affect Suspension, Electronics, Body, Brakes.
Discovery (276DT, 2004–2009) — Stay Away!: Oil cooler leak: oil-coolant cross-contamination, Crankshaft bearing failure from design weakness, Injector seal leak accelerates bearing wear. Power: 190 PS.
Discovery (306DT, 2009–2013) — Stay Away!: Crankshaft bearing failure from design weakness, Timing chain and tensioner wear, Injector over-fuelling with piston damage. Power: 245–249 PS.
Discovery (306DT, 2011–2013) — Stay Away!: Crankshaft bearing failure from design weakness, Timing chain and tensioner wear, Injector over-fuelling with piston damage. Power: 256 PS.
Discovery (306DT, 2011–2013) — Stay Away!: Crankshaft bearing failure from design weakness, Timing chain and tensioner wear, Injector over-fuelling with piston damage. Power: 211 PS.
Discovery (AJ41, 2004–2009) — Be Careful: Plastic timing chain guide breaks, VANOS seals worn: clatter and power loss, Thermostat (105°C) and cooling system failures. Power: 299 PS.
Discovery (AJ126, 2013–2017) — Stay Away!: Plastic coolant pipe under supercharger bursts, Timing chain and guides wear, Supercharger torsional coupler wears out. Power: 340 PS.
What to watch out for with the Land Rover Discovery? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
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Last updated: February 2026 · All information without guarantee