Coolant Temperature Sensor Replacement Cost in UAE 2026
The coolant temperature sensor (CTS) is a small but critical component that tells the engine management system how hot or cold the coolant is. The ECU uses this data to adjust fuel injection, ignition timing, idle speed, and cooling fan operation. When the sensor fails in UAE’s extreme heat, the consequences range from poor fuel economy to a dangerously ineffective cooling fan. This guide covers coolant temperature sensor replacement costs across all UAE emirates in 2026.
Coolant Temperature Sensor Replacement Cost by Emirate
| Emirate | Aftermarket CTS (fitted) | Genuine OEM CTS (fitted) |
|---|---|---|
| Dubai | AED 100 – 280 | AED 200 – 500 |
| Abu Dhabi | AED 95 – 270 | AED 190 – 480 |
| Sharjah | AED 90 – 260 | AED 180 – 460 |
| Ajman | AED 85 – 250 | AED 170 – 440 |
| Ras Al Khaimah | AED 80 – 240 | AED 160 – 420 |
| Fujairah | AED 80 – 230 | AED 155 – 400 |
| Umm Al Quwain | AED 75 – 220 | AED 150 – 380 |
Why the CTS Matters More in UAE Than Cooler Climates
In temperate climates, a failed coolant temperature sensor that reports a cold reading when the engine is warm mainly causes rich running and slightly poor fuel economy. In UAE’s summer — when ambient temperatures regularly exceed 45°C and under-bonnet temperatures reach 70°C or more — the same fault can prevent the electric cooling fan from activating at the right time, leading to rapid overheating. A CTS fault in UAE summer conditions is not a minor inconvenience; it is a potential engine-destroying event if ignored.
How a CTS Fault Is Diagnosed
A mechanic connects a diagnostic scanner and reads the coolant temperature live data with the engine running. If the scanner shows a low reading (e.g., 20°C) while the temperature gauge shows normal operating temperature (90°C), or if the scanner shows an erratic signal jumping between extreme values, the CTS is the likely culprit. Fault codes P0115, P0116, P0117, P0118, and P0119 all relate to CTS circuit malfunctions.