No-start countdown on the dash? We can usually get to you today. Call 07503 134362
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Gloved hands holding a new NOx sensor beside the exhaust of a diesel van
Road-legal repair

NOx Sensor Replacement in Stoke-on-Trent

NOx sensor warning, P2200 or P229F code, or the AdBlue light back on? We come to you, test the sensor properly, then fit and code a quality replacement so your vehicle stays road legal. Mobile across Stoke-on-Trent, Staffordshire and Cheshire East.

From £150, quoted per job Open 7 days, 09:00–20:00 Abid comes to you
Free, no-obligation quote

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What fails and why

Why NOx sensors fail

Most AdBlue diesels have two NOx sensors, one before and one after the SCR catalyst. They live in hot exhaust gas and their electronics eventually fail, triggering warnings, limp mode or a no-start countdown.

A wiring or connector fault can look exactly like a failed sensor, so we test before replacing. On many vehicles the new sensor also needs an adaptation or reset afterwards; see NOx sensor adaptation after replacement.

Gloved hand unplugging a NOx sensor connector on a diesel exhaust
Signs

Signs your NOx sensor has failed

P2200 / P2202

NOx sensor circuit faults.

P229F

Downstream NOx sensor range or performance.

U029D

Lost communication with the NOx sensor.

P20EE

SCR efficiency low, often caused by a sensor.

Limp mode

Power capped after a sensor fault.

Countdown

No-start countdown after the warning.

How it works

How a mobile repair works

Diagnosis and the repair at your home or workplace wherever possible.

1

We come to you and diagnose

We plug in at your home or work, read the codes and live data, and test the part before condemning it.

2

We confirm the fault and price

You get the cause and a fixed price before any work starts. No surprises, no pressure.

3

We fit the replacement

Good-quality part fitted on your drive or at your workplace wherever possible.

4

We code, clear and test

Adaptations or coding done where the vehicle needs it, codes cleared and the system checked.

Why us

Why get it repaired with us

Tested first

We prove the part has failed before replacing it, so you do not pay for guesses.

Road legal

A repair keeps your emissions system working as designed.

Fitted at your door

Home, work or roadside across Stoke, Staffordshire and Cheshire East.

Quoted up front

Prices start from £150, quoted on the vehicle, the fault and where you are.

Real jobs

From our recent jobs

Real photos and fault codes from mobile AdBlue visits.

Prices

Get a price for NOx sensor replacement

Prices start From £150

Send your reg, postcode and the fault or code, and we will confirm the fix and the price before any work starts. Prices start from £150.

Questions

NOx sensor replacement: your questions

How much does NOx sensor replacement cost?

It depends on the vehicle and the sensor. Prices start from £150 and we quote before any work. See our NOx sensor cost guide.

Which sensor is faulty, upstream or downstream?

The fault code and live data tell us. We check both sensors and the wiring before replacing anything.

Does the new sensor need coding?

On many vehicles, yes. We carry out the adaptation or reset with our diagnostic equipment so the system accepts the new sensor.

Can a NOx sensor be cleaned instead?

Rarely successfully, because the fault is usually in the sensor electronics. See can you clean a NOx sensor.

Do you come to me?

Yes. We are fully mobile across Stoke-on-Trent, Staffordshire and Cheshire.

AdBlue warning on the dash?

Call or WhatsApp Abid and get it sorted, usually the same day.

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