Question 1

What is the 3.0 SDV6 Crankshaft Failure issue on the Land Rover Discovery 4 (L319)?

Accepted Answer

Sudden, catastrophic failure of the crankshaft or main bearings, requiring a replacement engine. Symptoms include: Sudden engine cut-out, Deep knocking noise, Low oil pressure warning. Estimated repair cost: £5,000–£10,000.

Question 2

What is the Inlet Manifold Cracking issue on the Land Rover Discovery 4 (L319)?

Accepted Answer

The plastic inlet manifolds on 3.0 diesels crack under heat cycles, causing boost leaks, restricted performance mode, and DPF regeneration failures. Symptoms include: Restricted performance, Loss of power, Black smoke, DPF warning. Estimated repair cost: £200–£1,000.

Question 3

What is the Front Lower Suspension Arm Wear issue on the Land Rover Discovery 4 (L319)?

Accepted Answer

The front lower control arm bushes wear prematurely on UK roads, causing knocking noises at low speed and uneven tyre wear. Symptoms include: Clonking noise over bumps, Knocking under braking, Uneven front tyre wear. Estimated repair cost: £300–£700.

Question 4

What is the EGR Valve and Intercooler Hose Failures issue on the Land Rover Discovery 4 (L319)?

Accepted Answer

EGR valves crack and intercooler hoses split, causing boost pressure loss, power reduction, and black smoke under load. Symptoms include: Loss of power, Black smoke from exhaust, Restricted performance mode. Estimated repair cost: £300–£1,200.

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