IsItAGoodCar
Reliability Guide

Common Problems with the
2004 Land Rover Discovery 3 (L319)

The Discovery 3 was a technological tour de force, introducing the complex 'Integrated Body Frame' and the revolutionary Terrain Response system. It set new standards for off-road capability mixed with on-road refinement.

What changed for 2004

  • •Complete redesign featuring a heavy hybrid unibody/ladder-frame chassis.
  • •Introduction of the 2.7-litre TDV6 engine developed with PSA/Ford.

Common MOT watch-outs

  • !Failure of the electronic park brake (EPB) actuator, often signaled by a screeching noise.
  • !Air suspension faults (compressor failure, leaky struts, sensor issues).
4
Known Issues
2
Serious
2
Moderate
0
Minor

All Known Issues

Air Suspension Compressor and Bag Failures

SeriousSuspension & Chassis

The air suspension system suffers from perished air bags, failing compressors, and leaking valves. The compressor overworks when bags leak and eventually fails.

Est. Repair Cost: £400–£1,500
Warning Signs:

Vehicle sagging overnight, Slow to raise, Noisy compressor, Suspension warning light

What to Inspect:
  • Ride height after overnight parking
  • Compressor noise
  • Air bag condition for cracks
Verified by IsItAGoodCar Research Team

2.7 TDV6 Timing Chain and Oil Pump Failure

SeriousEngine

The timing belt tensioner bolts to the oil pump casing on pre-2007 models. The casing cracks, causing belt slip and catastrophic engine damage. Spun crankshaft bearings are also common from oil starvation.

Est. Repair Cost: £3,000–£8,000
Warning Signs:

Engine seizure, Sudden loss of oil pressure, Metallic knocking, Timing belt snap

What to Inspect:
  • Oil pump casing for cracks
  • Oil change history
  • Metallic glitter in oil filter
Verified by IsItAGoodCar Research Team

Electronic Parking Brake Failure

ModerateBrakes

The internal gears of the EPB module strip, causing it to jam or screech.

Est. Repair Cost: £500–£900
Warning Signs:

Loud screeching from the rear, "Parking Brake Fault" message

What to Inspect:
  • EPB operation multiple times
Verified by IsItAGoodCar Research Team

EGR Valve Clogging and DPF Blockage

ModerateEngine

EGR valves clog with soot causing limp mode, power loss and black smoke. The DPF blocks if the vehicle is mainly driven on short urban trips without motorway regeneration runs.

Est. Repair Cost: £300–£2,000
Warning Signs:

Restricted performance mode, Black smoke, Loss of power, DPF warning light

What to Inspect:
  • EGR valve condition
  • DPF regeneration history
  • Driving pattern (motorway use)
Verified by IsItAGoodCar Research Team

Buying Tips for 2004 Land Rover Discovery 3 (L319)

  • ✓Listen for a 'clunk' from the front suspension over bumps, indicating worn lower control arm bushes.
  • ✓Ensure the timing belts (front and rear) have been replaced on the TDV6; failure is catastrophic.
2005–2007
Check a 2004 Land Rover Discovery 3 (L319) by Registration