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Land Rover Discovery: 2.0 SD4 Ingenium diesel timing chain failure

2.0 SD4 Ingenium diesel timing chain failure is a common engine fault on the Land Rover Discovery on the 2017–2020 cars, and we rate it critical. Putting it right costs $4,000 to $12,000 at New Zealand independent workshop rates. Below is what goes wrong, the symptoms to notice on a test drive, where to look, and what to ask the seller before you hand over any money. It is one of 27 documented faults on the Land Rover Discovery.

Vehicle
Land Rover Discovery
Engine
2.0L
Years
2017–2020
Fuel
diesel
System
Engine

This page covers the Land Rover Discovery as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Land Rover Discovery faults27 documented faults on this model

What you are looking at

The front of a dual overhead camshaft engine with the timing cover removed, exposing the timing chain and sprockets.Example of the part — not this vehicle

The front of a twin-cam engine with the timing cover off — chain, sprockets and guides.

Logansenf · CC BY-SA 4.0 · Wikimedia Commons

What goes wrong

The four-cylinder 2.0 Ingenium diesel fitted to entry Discovery 5s (and Discovery Sport/Evoque) suffers premature timing chain wear — typically surfacing at 90,000-130,000 km as a cold-start rattle, escalating to a jumped or snapped chain and catastrophic engine damage. Oil dilution from DPF regenerations and long service intervals accelerate it. JLR revised the chain system around late 2019-2020 (no NZ/AU recall; Korea forced one), so pre-update engines with no chain history carry real risk. The V6 diesels do not share this fault.

What you would notice

  • Metallic rattle for a few seconds on cold start
  • Rattle at idle getting steadily worse
  • Check engine light with camshaft/crankshaft correlation codes
  • Sudden loss of power / engine stops (chain jumped)

How to check it

Where to look. Timing chain on the engine — listen at the front right of the engine bay on cold start

Cold-start the engine yourself (bonnet cool) and listen closely at the right side of the engine for a chain rattle in the first seconds. Check the service history for oil changes at 12 months/16,000 km or better and any timing chain replacement invoice. Prefer post-2020 builds or cars with the updated chain kit fitted.

Parts involved: Timing chain.

What it costs to put right

$4,000 to $12,000 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

Ask the seller

  • “Has the timing chain been replaced with the updated kit?”
  • “What oil-change intervals has the car had — can I see invoices?”

Now check the Land Rover Discovery you are actually looking at

Everything above is true of the model, and it is free. What it does not tell you is whether THIS car has been looked after: its odometer history and whether the reading has ever gone backwards, whether there is still money owing on it, whether it has been reported stolen, how many owners it has had and what it is really worth today. That comes from the official records for that plate. Enter the plate for the free details, or get the full history and a market valuation from $13.49.

Not sure what you would be paying for? See what a full KickTyres check includes.

Where this comes from

The failure described above is documented in the sources below. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them.

  • K Motors: '2.0 Ingenium diesel timing chain failure'
  • LRDirect technical guide: '2.0D Ingenium timing chain faults'
  • Stedmans Garage: 'Common issues with Discovery Sport Ingenium engines'

Land Rover Discovery buyer questions

Is 2.0 sd4 ingenium diesel timing chain failure serious on a Land Rover Discovery?

We rate it critical and common on the Land Rover Discovery. The four-cylinder 2.0 Ingenium diesel fitted to entry Discovery 5s (and Discovery Sport/Evoque) suffers premature timing chain wear — typically surfacing at 90,000-130,000 km as a cold-start rattle, escalating to a jumped or snapped chain and catastrophic engine damage. Oil dilution from DPF regenerations and long service intervals accelerate it. JLR revised the chain system around late 2019-2020 (no NZ/AU recall; Korea forced one), so pre-update engines with no chain history carry real risk. The V6 diesels do not share this fault.

How much does it cost to fix on a Land Rover Discovery?

$4,000 to $12,000 at New Zealand independent workshop rates. That figure is for this job on its own. A car showing the symptoms on this page is usually worth either walking away from or negotiating down by at least the repair figure.

Which Land Rover Discovery years are affected?

Our research records this fault on the 2017–2020 Land Rover Discovery. Build dates move around, especially on imported cars, so treat the range as the years to look hardest at rather than a guarantee either way. The official records tell you the exact build and first registration date for the car in front of you.

How do I check for it before I buy?

Cold-start the engine yourself (bonnet cool) and listen closely at the right side of the engine for a chain rattle in the first seconds. Check the service history for oil changes at 12 months/16,000 km or better and any timing chain replacement invoice. Prefer post-2020 builds or cars with the updated chain kit fitted. Look here: Timing chain on the engine — listen at the front right of the engine bay on cold start