Exhaust Temperature Sensor - CI - XEPS148
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Product Information
Full details
The CI Exhaust Temperature Sensor (XEPS148) is designed for automotive technicians and DIY mechanics performing engine emission system maintenance on VAG group vehicles. This precision component provides critical thermal data to the engine control unit to ensure optimal performance and DPF health, though it requires specific knowledge of engine bay clearance and sensor placement to ensure a successful installation.
All features
| Model Part Number | XEPS148 |
|---|---|
| Brand | CI |
Extended Product Information
FAQs
Does this sensor come with anti-seize applied?
No, it is recommended to apply a small amount of high-temperature anti-seize compound to the threads manually.
Is this a universal part?
No, it is specifically designed for VAG vehicles requiring OEM reference 03L906088FH.
What tools do I need for installation?
You typically need a deep-socket wrench, a wire brush for cleaning threads, and an OBD-II scan tool.
Can I install this while the engine is hot?
Absolutely not. The exhaust area reaches extreme temperatures that will cause severe burns.
Does cable length matter?
Yes, the 255 mm length is specified to allow for proper routing and strain relief within the engine bay.
Will this fix a clogged DPF?
This sensor helps maintain the DPF, but if the filter is already severely clogged, it may require a forced regeneration or professional cleaning.
Troubleshooting
Check engine light remains on after installation
Use an OBD-II scanner to clear the stored fault codes from the ECU memory.
Sensor is difficult to insert
Check that the exhaust bung threads are free of debris and that the sensor is perfectly aligned before tightening.
Intermittent signal readings
Inspect the 2-pin connector for any corrosion or loose pins, and ensure the electrical connection is fully seated.
Pros and Cons
Pros
- Direct fit for VAG vehicle applications
- Essential for preventing DPF clogging
- High-quality build matches OEM specifications
- Reliable thermal data transmission
Cons
- Requires specialized tools for removal in tight spaces
- Installation requires engine cooling to avoid burns
- May require diagnostic software to clear stored codes
Setup, Compatibility & Care
Before installation, ensure the engine and exhaust system have cooled completely. Use a deep-socket wrench appropriate for the M14 sensor base. Ensure the threads are clean before inserting the new sensor to avoid cross-threading. The XEPS148 is compatible with a wide range of VAG vehicles matching OEM number 03L906088FH. Always apply a small amount of high-temperature anti-seize compound to the threads to ensure easier removal during future maintenance. Once installed, verify the cable is routed away from hot components or moving parts, and clear any existing diagnostic trouble codes using an OBD-II scanner.