NOx Sensor Repair – Angel, Islington

NOx sensors monitor the nitrogen oxide levels in your vehicle’s exhaust system, playing a key role in emissions control and engine management. When one fails, the effects range from a warning light and reduced fuel economy to a failed MOT emissions test, and on some vehicles, the engine entering limp mode.

It’s a fault that’s become increasingly common, particularly on diesel vehicles, and one that’s often misdiagnosed. At Brownings Garage, we use Autologic diagnostic systems to identify NOx sensor faults accurately before any parts are ordered or replaced.

Signs of a failing NOx sensor:

• AdBlue warning light or emissions system warning
• Engine management light on the dashboard
• Poor fuel economy or increased AdBlue consumption
• Failed MOT on emissions
• The vehicle entering limp mode or reduced performance mode
• Rough running or hesitation

Accurate diagnosis matters

NOx sensor faults are frequently confused with other emissions system issues, including EGR valve faults, DPF problems, and SCR system failures. Replacing a sensor that isn’t the root cause is an expensive mistake. We diagnose the system fully before recommending any repair, and we’ll explain clearly what we’ve found and why the work is needed.

We have particular experience with NOx sensor faults on VW, Audi, Seat, Skoda, Porsche, and Mercedes diesel vehicles, where these issues are well documented.

NOx or emissions warning light showing? Book a diagnostic check at Brownings Garage today.

Proud to be affiliated with the Institute of the Motor Industry and part of the respected Castrol Service network of quality independent workshops, Brownings Garage is fully committed to providing the very best in workmanship and in customer service to drivers from Islington and across London.

To find out more about NOx Sensor Repair in Angel, Islington, contact us online, or call us directly on 020 7837 5450.

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