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The Ci Ignition Coolant Temperature Sensor (XTTS28) is an essential diagnostic replacement part for automotive technicians and DIY mechanics seeking to restore accurate engine thermal monitoring. Designed to maintain optimal operating temperatures, it provides precise data to the vehicle's ECU; however, users should verify compatibility against specific engine codes as it is tailored for select Citroen, Peugeot, and Fiat configurations.
| Model Part Number | XTTS28 |
|---|---|
| Brand | Ci Ignition |
The XTTS28 requires a 22 mm spanner for installation.
Yes, the XTTS28 is designed to replace OEM references including 133893 and 1338F7.
The M16 x 1.5 taper thread is designed to seal against the housing without additional liquid sealants, provided the surface is clean.
This sensor is primarily compatible with select Citroen, Peugeot, and Fiat models.
The total length of the unit is 37 mm.
No, you must wait for the engine to cool to avoid potential burns from hot coolant under pressure.
Check the 2-pin electrical connector for corrosion or loose pins, then verify the sensor is fully tightened.
Ensure the taper thread is clean and properly seated; do not overtighten, as this may damage the housing threads.
Verify that the cooling system was properly bled of air pockets and check for mechanical failure in the thermostat or water pump.
Before installation, ensure the engine is completely cool to avoid injury from hot, pressurized coolant.
Compatibility covers various Citroen, Peugeot, and Fiat models. Always cross-reference your specific OEM part number (e.g., 4837950 or 504127558) before purchase.
