DPF warnings and rising oil level on Ingenium diesels

Which cars and engines are affected?

This page covers the 2.0 Ingenium diesel, fitted from 2015 to these models:

• Range Rover Evoque
• Discovery Sport
• Range Rover Velar
• Discovery 5

If you are not sure which engine your car has, put the registration in the enquiry form and we will check. For other work on these cars, see our Land Rover and Range Rover specialist page.

The diesel particulate filter (DPF) traps soot from the exhaust. The engine then burns the soot off at intervals, which is called regeneration. If the filter cannot regenerate often enough, it fills up and the warning comes on.

What are the symptoms?

• the DPF warning light
• limp-home mode, where the car runs with reduced power
• an engine oil level that rises between services

Two MOT points are worth knowing. Visible smoke of any colour from a car with a DPF is a Major defect, and so is an engine warning lamp that shows a fault on a diesel first used from 1 July 2008.

What causes it?

One Land Rover specialist names short trips as the cause: they stop a regeneration completing. Each time a regeneration is cut short and tried again, fuel is washed into the sump, so the oil level rises and the oil is diluted.

The same specialist says that fuel-diluted oil is thinner, which matters on this engine because thin oil adds to timing chain wear. It recommends changing the oil more often than the factory interval. If most of your driving is short trips, tell us when you book.

A fault elsewhere can also stop the filter clearing. The causes we look at include a DPF pressure sensor or its pipes, the EGR system, the injectors and the way the car is used.

How do you confirm the fault before fitting parts?

A fault code is not a repair, and a blocked filter is a symptom, not a cause. Before we quote, we:

• read the fault memory with our diagnostic equipment
• read the soot load and the pressure readings across the filter
• check the DPF pressure sensor pipes
• check the engine oil level and look for fuel in the oil

Our DPF and emissions health check covers these tests with a written report. We then show you what we found and send a written price. No work is done until you give us your written approval.

What does the repair involve?

• Fix the cause first, whether that is a sensor, the EGR system, an injector or a pattern of use, so the filter does not block again.
• Regenerate the filter, as a forced regeneration in the workshop with our diagnostic equipment.
• Replace the filter only as the last resort, when the tests show it is needed.
• Change the engine oil, so the diluted oil comes out of the engine.

DPF root-cause diagnosis is done in-house. Once the work is done, we check the readings again and verify the repair, including a road test where appropriate. We repair DPFs and other emissions systems; we never remove or disable them.

Is a DPF delete legal?

Almost never, for a vehicle used on the road. Government guidance on diesel particulate filters says removing a DPF will almost always make the vehicle illegal for road use. In the MOT, emissions equipment that is missing or obviously modified, and evidence that the DPF has been tampered with, are both Major defects.

The Road Traffic Act 1988 makes it an offence to use a vehicle that breaks the construction and use rules, and also covers altering a vehicle so that using it on the road would be unlawful. That can reach the person who did the work as well as the driver. The Department for Transport consulted in 2026 on making DPF removal illegal in every case.

How long does a DPF repair take?

It depends on what the tests find, on the reason the filter blocked, and on whether the filter can be regenerated or needs replacing.

Before any work starts, you get a written price and a promised time for your next update. If the car needs to stay with us, ask about a courtesy car when you book.

Is there a recall for the DPF?

Whether a recall applies depends on the individual car, so check your registration on gov.uk. Recall work is done by Land Rover’s network, not by us.