Emissions control: EGR, DPF, catalytic converter and AdBlueGeneric OBD-II codeUrgency: Garage soon

P2458 on Opel: causes and affected engines

P2458 means: diesel particulate filter: regeneration duration.^[1] Opel has 8 documented faults that can trigger it, across 7 engines, including 1.3 Multijet, 2.0 CDTI, 1.6 HDi and 1.7 CDTI. Only a diagnosis can confirm the cause on your car.

Documented faults

that can trigger it

Engines

used by Opel, with at least one of them

Opel models

with at least one of these faults

Urgency

Garage soon

Reviewed on 30 October 20266 sources How we work

Documented faults in Opel engines that can trigger P2458

Grouped by engine or model, from most to least important. These are faults with the particulate filter: not all of them will necessarily set the code, and only a diagnosis confirms the cause on your car.

1.3 Multijet

In Astra J, Combo D, Corsa D, Corsa E and Meriva B

- High severityFrequency: CommonEmissions controlIncomplete particulate filter regenerations and oil dilutionIn heavy urban use, with short journeys that do not let the particulate filter regeneration finish, unburnt diesel passes into the sump and dilutes the oil; the level can rise on the dipstick and the oil loses its ability to lubricate. Repeated many times, it speeds up engine wear.

2.0 CDTI

In Astra J, Cascada, Insignia A, Insignia B and Zafira Tourer C

1.6 HDi

In Crossland and Grandland I

- Medium severityFrequency: CommonEmissions controlAdditive-fed particulate filter (Eolys cerine): depleted additive and cloggingThe DPF on the 1.6 HDi and BlueHDi works with an additive (cerine) that runs out at 80,000-120,000 km and has to be topped up for around €100-120 (price in Spain). With a lot of town use the filter clogs and the warning appears; if it is left, a new DPF costs around €1,500.Repair (garage): €100–€1,500Appears at around 80,000 km

1.7 CDTI

In Astra H, Astra J, Corsa D, Meriva A and Zafira B

- High severityFrequency: OccasionalEmissions controlClogged diesel particulate filter (DPF) and oil dilutionThere are accounts from Opel Astra and Zafira owners with this engine describing a clogged diesel particulate filter (DPF) — in one case with only 17,000 km — and oil diluted with diesel after repeated failed regenerations.

1.9 JTD/Multijet and 2.4 JTD

In Astra H, Signum, Vectra C and Zafira B

- Medium severityFrequency: CommonEmissions controlParticulate filter (DPF) clogging in urban useOn versions with a particulate filter, urban use with short journeys prevents regeneration from completing and the filter clogs: the warning light comes on, the car enters limp mode and consumption rises. A 30-minute motorway run every two weeks is recommended to avoid it.Repair (garage): €350–€600

2.0 BlueHDi

In Grandland I, Vivaro C and Zafira Life

- High severityFrequency: OccasionalEmissions controlDPF clogging on short journeysThe additive-dosed DPF on the 2.0 BlueHDi can clog if the car mostly does short journeys and does not reach the temperature needed to regenerate. It is a documented fault on current models such as the Opel Grandland, although with fewer cases than on the generations of the 2.0 HDi from before 2013.

2.3 dCi (M9T)

In Movano B

- Medium severityFrequency: OccasionalEmissions controlDiesel particulate filter (DPF) clogged in urban useIn urban deliveries with little mileage the particulate filter may fail to regenerate and become clogged. One source puts the servicing or replacement at between €350 and €1,500.Repair (garage): €350–€1,500

Common causes of P2458 on any make

From most to least likely, according to the sources.

1Regenerations that are never completed or are interrupted. Diariomotor points out that the conditions for regenerating are not met if the car only does short city trips or is driven in a way that overuses the high gears, and Wikipedia and RACE agree that exclusively urban use or short trips cause the filter the most problems. No source expressly attributes this cause to P2458: it is the reason they give for a regeneration not being completed.^[2][3][4]
2Faulty filter pressure sensor or damaged wiring, which distort the information the ECU uses. CarParts lists them among the causes of the sister code P2459, and RACE includes a faulty differential pressure sensor among the usual faults of the anti-pollution system.^[4][5]
3Blocked filter or exhaust, or excess soot caused by engine problems, which CarParts mentions for P2459.^[5]
4ECU fault, which CarParts also includes among the causes of P2459.^[5]

What to check first

The first diagnostic steps, from the most likely and cheapest to check to the most expensive.

1Read the codes with a diagnostic tool and check the sensors before clearing anything: RACE insists that clearing the code without repairing the cause only hides it for a while. CarParts recommends a professional diagnosis, because this generic code varies by manufacturer and testing the filter requires specific equipment and knowledge.^[4][5]
2Think about how the car is used. If it mostly does short trips, take a long drive at a sustained engine speed and see whether the light goes out: Diariomotor talks about more than 2,000 rpm and Wikipedia about 80-100 km/h for 30 to 45 minutes, so follow what your car's manual says. If the light stays on or flashes, do not keep trying: HELLA recommends going to a garage straight away.^[2][3][6]
3Check the filter pressure sensor, its intake pipes, the wiring and the connectors, which CarParts lists among the causes of the sister code P2459.^[5]

Full guide to P2458: symptoms, diagnosis and whether you can drive

Frequently asked questions

Which Opel engines have faults that can trigger P2458?

1.3 Multijet (1 fault), 2.0 CDTI (2 faults), 1.6 HDi (1 fault), 1.7 CDTI (1 fault), 1.9 JTD/Multijet and 2.4 JTD (1 fault) and 2.0 BlueHDi (1 fault). Each fault has its own page with the affected years and versions, the symptoms and the repair cost.

What does code P2458 mean on a Opel?

Diesel particulate filter: regeneration duration. The diesel particulate filter (DPF) collects soot from the exhaust and removes it by burning it off in regenerations, which the ECU starts when the sensors show the filter has filled up. If that cleaning is interrupted, HELLA warns that very serious engine damage could result. It is a generic OBD-II code: it means the same on a Opel as on any other make.^[1][6]

Can I keep driving with P2458?

Garage soon. The sources consulted do not rate the severity of P2458 specifically. On the particulate filter in general, HELLA warns that, if the cleaning is interrupted, very serious engine damage could result, and that, if the warning light does not go out or flashes, you must go to a garage straight away. RACE advises against driving in limp mode, because it increases the pressure and temperature in the exhaust and can damage other components. This is not a fault to ignore.^[4][6]

Sources

Every fact on this page links to its source. If you find an error, let us know.

P2458 Trouble Code DefinitionDTCSearch.com (OBD Solutions) · Technical documentation · consulted 4 October 2026
Diesel particulate filterWikipedia · Other source · consulted 4 October 2026
El filtro de partículas de mi coche no funciona, ¿qué puedo hacer?Diariomotor · Motoring press · published 21 November 2020 · consulted 4 October 2026 · in Spanish
¿Qué es el sistema antipolución del coche y qué averías puede sufrir?RACE · Motoring press · published 25 September 2026 · consulted 4 October 2026 · in Spanish
P2459 Code: Diesel Particulate Filter Regeneration FrequencyCarParts.com · Technical documentation · published 19 June 2026 · consulted 4 October 2026
El sistema DPF (Filtro de Partículas Diésel) - Boletín InformativoHELLA · Manufacturer · published 2015 · consulted 4 October 2026 · in Spanish