OE Quality
60-Day Returns

Delphi TS10251 Engine Coolant Temperature Sensor
Reliable Engine Coolant Temperature Sensor for Audi and Volkswagen
The Delphi TS10251 Engine Coolant Temperature Sensor is designed to provide accurate temperature readings for your vehicle's cooling system. Compatible with various Audi and Volkswagen models, this sensor helps maintain optimal engine performance and prevents overheating.
- Terminal Type: Blade for secure electrical connection
- Single female rectangular connector with two male terminals
- Threaded nut mounting type for stable installation
- Includes engine coolant temperature sensor and instruction sheet
- Wiring harness not included
Technical Details and Compatibility
This Delphi engine coolant temperature sensor features a blade terminal type with two male terminals housed in a single female rectangular connector, ensuring reliable signal transmission. The sensor mounts securely using a threaded nut, providing a firm fit in the engine cooling system. The TS10251 is compatible with a range of Audi and Volkswagen vehicles, including models such as the Audi 80, 90, 100, A6, Cabriolet, Coupe, and Volkswagen Golf, Jetta, Passat, Fox, and 4000. This part number TS10251 is engineered to meet OEM specifications for accurate temperature monitoring.
Common Applications and Problem Resolution
- Helps prevent engine overheating by providing precise coolant temperature data
- Resolves inaccurate temperature gauge readings
- Improves engine control unit (ECU) response for fuel and ignition timing
- Addresses issues with cooling fan activation
- Eliminates erratic temperature sensor signals that can cause engine performance problems
Installation Notes and Tips
When installing the Delphi TS10251 sensor, ensure the threaded nut is tightened securely to avoid coolant leaks. Verify the blade terminal connections are clean and free of corrosion for optimal electrical contact. Since the wiring harness is not included, use the existing harness or source a compatible connector for proper installation. Follow the included instruction sheet for detailed guidance.
Quality Assurance and Warranty
Delphi manufactures the TS10251 Engine Coolant Temperature Sensor to meet strict quality standards, ensuring durability and reliable performance. This sensor is tested for compatibility with specified Audi and Volkswagen models. Please refer to Delphi's warranty policy for coverage details.
| Brand | Delphi |
| Part Number | TS10251 |
| Terminal Type | Blade |
| Connector Quantity | 1 |
| Connector Shape | Rectangle |
| Terminal Quantity | 2 |
| Connector Gender | Female |
| Terminal Gender | Male |
| Wiring Harness Included | No |
| Mounting Type | Threaded nut |
| Package Contents | Engine coolant temperature sensor, instruction sheet |
This part fits 61 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1998 | Audi | A6 Quattro | N/A | White; with 2 Pins |
| 1998 | Audi | Cabriolet | N/A | White; with 2 Pins |
| 1997 | Audi | A6 | N/A | White; with 2 Pins |
| 1997 | Audi | A6 Quattro | N/A | White; with 2 Pins |
| 1997 | Audi | Cabriolet | N/A | White; with 2 Pins |
| 1996 | Audi | A6 | N/A | White; with 2 Pins |
| 1996 | Audi | A6 Quattro | N/A | White; with 2 Pins |
| 1996 | Audi | Cabriolet | N/A | White; with 2 Pins |
| 1995 | Audi | 90 | N/A | White; with 2 Pins |
| 1995 | Audi | 90 Quattro | N/A | White; with 2 Pins |
| 1995 | Audi | A6 | N/A | White; with 2 Pins |
| 1995 | Audi | A6 Quattro | N/A | White; with 2 Pins |
| 1995 | Audi | Cabriolet | N/A | White; with 2 Pins |
| 1994 | Audi | 100 | N/A | White; with 2 Pins |
| 1994 | Audi | 100 Quattro | N/A | White; with 2 Pins |
| 1994 | Audi | 90 | N/A | White; with 2 Pins |
| 1994 | Audi | 90 Quattro | N/A | White; with 2 Pins |
| 1994 | Audi | Cabriolet | N/A | White; with 2 Pins |
| 1993 | Audi | 100 | N/A | White; with 2 Pins |
| 1993 | Audi | 100 Quattro | N/A | White; with 2 Pins |
| 1993 | Audi | 90 | N/A | White; with 2 Pins |
| 1993 | Audi | 90 Quattro | N/A | White; with 2 Pins |
| 1993 | Volkswagen | Fox | N/A | White; with 2 Pins |
| 1993 | Volkswagen | Passat | N/A | White; with 2 Pins |
| 1992 | Audi | 100 | N/A | White; with 2 Pins |
| 1992 | Audi | 100 Quattro | N/A | White; with 2 Pins |
| 1992 | Volkswagen | Fox | N/A | White; with 2 Pins |
| 1992 | Volkswagen | Golf | N/A | White; with 2 Pins |
| 1992 | Volkswagen | Jetta | N/A | White; with 2 Pins |
| 1992 | Volkswagen | Passat | N/A | White; with 2 Pins |
| 1991 | Volkswagen | Fox | N/A | White; with 2 Pins |
| 1991 | Volkswagen | Golf | N/A | White; with 2 Pins |
| 1991 | Volkswagen | Jetta | N/A | White; with 2 Pins |
| 1991 | Volkswagen | Passat | N/A | White; with 2 Pins |
| 1990 | Audi | 80 | N/A | White; with 2 Pins |
| 1990 | Volkswagen | Fox | N/A | White; with 2 Pins |
| 1990 | Volkswagen | Golf | N/A | White; with 2 Pins |
| 1990 | Volkswagen | Jetta | N/A | White; with 2 Pins |
| 1990 | Volkswagen | Passat | N/A | White; with 2 Pins |
| 1989 | Audi | 80 | N/A | |
| 1989 | Volkswagen | Fox | N/A | |
| 1989 | Volkswagen | Golf | N/A | |
| 1989 | Volkswagen | Jetta | N/A | |
| 1988 | Audi | 80 | N/A | |
| 1988 | Audi | 90 | N/A | |
| 1988 | Volkswagen | Fox | N/A | |
| 1988 | Volkswagen | Golf | N/A | |
| 1988 | Volkswagen | Jetta | N/A | |
| 1987 | Audi | 4000 | N/A | |
| 1987 | Audi | Coupe | N/A | |
| 1987 | Volkswagen | Fox | N/A | |
| 1987 | Volkswagen | Golf | N/A | |
| 1987 | Volkswagen | Jetta | N/A | |
| 1986 | Audi | 4000 | N/A | |
| 1986 | Audi | Coupe | N/A | |
| 1986 | Volkswagen | Golf | N/A | |
| 1986 | Volkswagen | Jetta | N/A | |
| 1985 | Audi | 4000 | N/A | |
| 1985 | Audi | Coupe | N/A | |
| 1985 | Volkswagen | Golf | N/A | |
| 1985 | Volkswagen | Jetta | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.