How much does nox sensor replacement cost in Hyderabad? GarageNation publishes transparent pricing for all dpf cleaning services. NOx Sensor Replacement repair range: ₹8,000 – ₹30,000. Turnaround: 1–2 hours. Warranty: 1 year on sensor.
Diagnosis: ₹1,500–₹2,500 (deducted from repair cost if you proceed)
Repair/cleaning: This is the lower end of the ₹8,000 – ₹30,000 range — applicable when the component can be serviced without full replacement.
Component replacement: This is the upper end of the range — applicable when the component has failed beyond service or cleaning.
Warranty: 1 year on sensor.
Many workshops in Hyderabad quote nox sensor replacement replacement over the phone without seeing the car. GarageNation never does this — we scan the car with our OEM diagnostic tool first. 30–40% of customers who come in expecting expensive replacement find a cleaning or adaptation reset resolves the fault at a fraction of the cost.
What does the NOx sensor do in a diesel car?
BS6 diesel cars use two NOx sensors — one before the SCR catalyst and one after. The 'before' sensor tells the ECU how much AdBlue to inject for optimal NOx reduction. The 'after' sensor confirms that the SCR catalyst is reducing NOx to acceptable levels. If the 'after' sensor shows NOx still high, the ECU triggers a fault and eventually prevents engine start to avoid continued illegal emission.
Can I drive with a NOx sensor fault code?
Initially yes, but the ECU counts driven kilometres with the fault active. After a threshold (model-specific, typically 800–1,000 km), the car enters limp mode. After a further distance, the car will not start. GarageNation stocks NOx sensors for BMW N47/B47, VW 2.0 TDI, and Mercedes OM651 diesel — most common replacements in Hyderabad.
Is nox sensor replacement covered by car insurance in India?
Standard comprehensive motor insurance covers nox sensor replacement only if the damage was caused by an accident or a specified peril (fire, flood). Mechanical failure from wear is not covered. Some premium insurance add-ons (engine protect, gearbox protect) do cover dpf cleaning failures — check your policy document. GarageNation provides detailed repair reports for insurance claims.
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