2021 Land Rover Discovery Sport Problems: 3 Issues Every Owner Should Know

2021 model year · 2,450+ owner reports · Updated April 2026

According to Au7o's analysis of 2,450+ owner reports, the 2021 Land Rover Discovery Sport has 3 documented known issues. No issues are rated critical, indicating generally reliable ownership. The most commonly reported issue is Panoramic Sunroof Drain Blockage and Seal Leaks with 1,200 owner reports. Across all issues, repair costs range from $100 to $1,800. DIY maintenance guides at au7o.io.

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Community Reported

1,200 owners

On the 2015-2022 Land Rover Discovery Sport, like most Land Rover models, the Discovery Sport suffers from panoramic sunroof drain blockages that cause water to enter the cabin. The long drain tubes running from the front sunroof tray down to the A-pillars and from the rear tray to the C-pillars become blocked with debris. The sunroof seal can also deteriorate, allowing water past even with clear drains.

Common Symptoms

Water dripping inside the cabin during or after rain
Wet headliner
Damp carpets in footwells
Musty smell
Water stains on A or C pillars

How to Fix

Clear all sunroof drain tubes with compressed air (never use a wire). Inspect and replace the sunroof seal if deteriorated. Clean the sunroof tray of debris and leaves. Apply a thin bead of silicone sealant along the tray edges if the factory seal has failed.

What Owners Are Using

Parts and tips from 1,200+ owners who fixed this issue

TipClear drains every 6 months. Park under trees? Do it every 3 months. The tubes are long and narrow and block easily.

Typical repair cost:$100 - $800

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1,200+ owners have reported this issue

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Community Reported

High Confidence1,200 reportsLast reported by owners Feb 2026Reviewed Mar 2026

Community Reported

380 owners

On the 2020-2025 Land Rover Discovery Sport 2.0L Ingenium Turbo, the Ingenium 2.0L turbo engine in the updated Discovery Sport shares the same high-pressure fuel pump cam follower issue as the Evoque. The cam follower wears prematurely, reducing fuel rail pressure and causing hard starting and rough running. This is an emerging issue on newer vehicles that JLR has acknowledged with an updated part.

This issue also affects: Chevrolet Silverado 2500HD, Jeep Grand Wagoneer, Lexus IS

Common Symptoms

Hard starting when warm
Rough idle
Loss of power
Check engine light with fuel pressure codes

How to Fix

Replace the high-pressure fuel pump cam follower with the updated JLR design. If the pump itself is damaged, replace the entire assembly. Clear fuel adaptation values after repair.

What Owners Are Using

Parts and tips from 380+ owners who fixed this issue

TipAsk your dealer if the updated cam follower has been installed at your next service. It is a proactive replacement that prevents pump failure.

Typical repair cost:$600 - $1,800

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380+ owners have reported this issue

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Community Reported

Medium Confidence380 reportsLast reported by owners Feb 2026Reviewed Mar 2026

Community Reported

870 owners

On the 2015-2022 Land Rover Discovery Sport, the wiring harness that runs through the tailgate hinge area on the Discovery Sport chafes against the body structure as the tailgate opens and closes. Over time, individual wires break or short out, causing intermittent failures of the rear wiper, rear wash, license plate lights, tailgate release, and backup camera. The rubber grommet protecting the wires deteriorates.

Common Symptoms

Rear wiper stops working intermittently
Backup camera cuts in and out
License plate lights not working
Tailgate release button unresponsive
Multiple rear electrical faults simultaneously

How to Fix

Inspect the tailgate wiring harness where it passes through the hinge area. Repair any broken wires and wrap the harness with additional protective sleeving. Replace the rubber grommet with the updated JLR part. In severe cases, the entire tailgate harness may need replacement.

What Owners Are Using

Parts and tips from 870+ owners who fixed this issue

TipInspect the tailgate wiring harness at every service. Catching a chafed wire before it breaks saves a lot of diagnostic time and money.

Typical repair cost:$200 - $800

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870+ owners have reported this issue

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Community Reported

High Confidence870 reportsLast reported by owners Nov 2025Reviewed Mar 2026

Frequently Asked Questions

What are the most common Land Rover Discovery Sport problems?

According to Au7o's analysis of 2,450+ owner reports, the 2021-2021 Land Rover Discovery Sport has 3 documented issues. The most frequently reported are: Panoramic Sunroof Drain Blockage and Seal Leaks, Ingenium 2.0L High-Pressure Fuel Pump Cam Follower Wear, Tailgate Wiring Harness Chafing and Breakage. None are rated critical, but regular maintenance is recommended.

Is the Land Rover Discovery Sport reliable?

The 2021-2021 Land Rover Discovery Sport has 3 known issues documented across 2,450+ owner reports. No issues are rated critical, suggesting generally good reliability. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Land Rover Discovery Sport problems?

Repair costs for known Land Rover Discovery Sport issues range from $100 to $1,800, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2015-2022 Land Rover Discovery Sport Panoramic Sunroof Drain Blockage and Seal Leaks?

Like most Land Rover models, the Discovery Sport suffers from panoramic sunroof drain blockages that cause water to enter the cabin. The long drain tubes running from the front sunroof tray down to the A-pillars and from the rear tray to the C-pillars become blocked with debris. Repairs typically run $100-$800. Severity: medium.

What is the 2020-2025 Land Rover Discovery Sport Ingenium 2.0L High-Pressure Fuel Pump Cam Follower Wear?

The Ingenium 2.0L turbo engine in the updated Discovery Sport shares the same high-pressure fuel pump cam follower issue as the Evoque. The cam follower wears prematurely, reducing fuel rail pressure and causing hard starting and rough running. This is an emerging issue on newer… Repairs typically run $600-$1,800. Severity: medium.

What is the 2015-2022 Land Rover Discovery Sport Tailgate Wiring Harness Chafing and Breakage?

The wiring harness that runs through the tailgate hinge area on the Discovery Sport chafes against the body structure as the tailgate opens and closes. Over time, individual wires break or short out, causing intermittent failures of the rear wiper, rear wash, license plate lights… Repairs typically run $200-$800. Severity: low.

2021 Land Rover Discovery Sport Problems: 3 Issues Every Owner Should Know

All 3 Known Issues

2015-2022 Land Rover Discovery Sport: Panoramic Sunroof Drain Blockage and Seal Leaks#

Common Symptoms

How to Fix

What Owners Are Using

Research This Issue

2020-2025 Land Rover Discovery Sport: Ingenium 2.0L High-Pressure Fuel Pump Cam Follower Wear#

Common Symptoms

How to Fix

What Owners Are Using

Research This Issue

2015-2022 Land Rover Discovery Sport: Tailgate Wiring Harness Chafing and Breakage#

Common Symptoms

How to Fix

What Owners Are Using

Research This Issue

Other Land Rover Models

Frequently Asked Questions

What are the most common Land Rover Discovery Sport problems?

Is the Land Rover Discovery Sport reliable?

How much does it cost to fix common Land Rover Discovery Sport problems?

What is the 2015-2022 Land Rover Discovery Sport Panoramic Sunroof Drain Blockage and Seal Leaks?

What is the 2020-2025 Land Rover Discovery Sport Ingenium 2.0L High-Pressure Fuel Pump Cam Follower Wear?

What is the 2015-2022 Land Rover Discovery Sport Tailgate Wiring Harness Chafing and Breakage?