Oxygen sensors (O2 sensors) monitor exhaust gas oxygen content, allowing the engine ECU to optimise the air-fuel mixture for efficiency and emissions. A faulty oxygen sensor in UAE leads to poor fuel economy, increased emissions, check engine lights, and potential RTA inspection failure. This guide covers oxygen sensor replacement costs in UAE 2026.
Oxygen Sensor Replacement Cost – UAE 2026
| Service | Cost in UAE |
|---|---|
| Upstream O2 sensor (pre-cat, aftermarket) | AED 150-400 |
| Upstream O2 sensor (OEM brand) | AED 300-800 |
| Downstream O2 sensor (post-cat, aftermarket) | AED 120-350 |
| Wideband O2 sensor (performance or GDI engines) | AED 300-900 |
| Labour per O2 sensor replacement | AED 80-200 |
| Full 4-sensor replacement (V6/V8) | AED 800-2,500 total |
Common O2 Sensor Check Engine Codes in UAE
If your check engine light is on in UAE, these are the most common O2 sensor OBD-II codes:
- P0130-P0135: O2 sensor Bank 1, Sensor 1 (upstream) issues
- P0136-P0141: O2 sensor Bank 1, Sensor 2 (downstream) issues
- P0150-P0155: O2 sensor Bank 2, Sensor 1 (V6/V8 engines)
- P0171/P0172: Fuel trim lean or rich (often caused by failed upstream O2 sensor)
How Long Do Oxygen Sensors Last in UAE?
Modern wideband O2 sensors typically last 100,000-150,000 km. However, in UAE conditions:
- Heavy traffic stop-and-go driving accelerates sensor wear
- Engine misfires can damage O2 sensors quickly (unburnt fuel melts the sensor element)
- Oil burning engines contaminate and destroy O2 sensors prematurely
Find diagnostics and engine services: car diagnostics in Dubai.