SevereAffected: 2014-201970,000–140,000 miles

Land Rover Discovery Sport Mk1 2.0 TD4 150bhp — EGR Valve and Cooler Failure

The Ingenium 2.0 TD4 engine in the Discovery Sport develops EGR valve and cooler failures. The cooler can cause coolant to enter the intake on higher-mileage examples.

Severity

Severe

DIY Difficulty

Hard

Est. Cost

£600–£1100

OBD Codes

P0401P0128

Component Diagram

EGR

Typical layout and location for the EGR assembly.

Reference Illustration

Symptoms

EML and power loss
Coolant level dropping (cooler failure)
White smoke with sweet smell
P0401 EGR code

Root Cause

The EGR valve carbons up from urban use; the EGR cooler corrodes internally and leaks coolant into the intake. Both are common from 70,000 miles.

How To Fix

Replace EGR valve and cooler together
Flush intake manifold
Cost: £600-1,100 at Land Rover specialist

Estimated Repair Costs

Repair Option	Est. Cost (GBP)
DIY (parts only)	£240–£440
Independent Garage	£600–£1100
Main Dealership	£960–£1760

Other Faults on This Variant

9-Speed ZF Gearbox Shudder

Moderate

2014-20191–80,000 miles£100–£6000

The Discovery Sport shares the 9-speed ZF gearbox with the Evoque — and shares its shudder problem at low speeds. Software updates partially resolve the issue.

DPF Blockage

Moderate

2014-201940,000–90,000 miles£300–£1600

The Discovery Sport TD4 is overwhelmingly used for urban family duties. Short trips prevent DPF regeneration, making it one of the most commonly reported faults.

Rear Differential and Power Transfer Unit Leak

Severe

2014-201960,000–130,000 miles£150–£2500

The Discovery Sport's rear differential and Power Transfer Unit (PTU) develop oil leaks from output seals with age. Neglected leaks lead to expensive component damage.

Disclaimer: Repair cost estimates are indicative and based on community data. Always get a quote from a qualified mechanic before proceeding with any repair.