Standard Ignition TX275 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Audi and VW

Standard Ignition TX275 is an engine coolant temperature sensor built for direct replacement on a wide range of Audi, Volkswagen, and Porsche applications. It uses a bolt-on attachment method with a round, plug-in female connector and a 2-pin male terminal layout for straightforward OE-style service.

Use TX275 when you need accurate coolant temperature input for engine management on vehicles such as the Audi A3, A4, Q5, Q7, and Volkswagen GTI or Jetta. This part number is also referenced in fitment for select Porsche Cayenne and Macan applications.

Key Features

• Bolt-on engine coolant temperature sensor design
• Round, plug-in connector with female housing
• 2-pin male terminal configuration
• Black and silver metal/plastic finish
• Single-port sensor layout for OE-style replacement
• Fits engine block, cylinder head, and radiator hose locations depending on application

Detailed Description

Standard Ignition TX275 is an engine coolant temperature sensor used to report coolant temperature to the vehicle’s control system. Accurate temperature input is important for fuel delivery, idle quality, cooling fan operation, and overall drivability. This sensor is listed for many turbocharged and direct-injection Audi and Volkswagen platforms, including Audi A3 Quattro, A4 Quattro, Q5, Q7, S3, and Volkswagen Atlas, Atlas Cross Sport, GTI, Jetta, and Arteon. It also appears in fitment for Porsche Cayenne and Macan models. This part cross-references Beck/Arnley 158-1599 for the same application.

What It Helps Address

• Incorrect coolant temperature readings
• Hard starting or rough cold operation
• Cooling fan behavior that does not match engine temperature
• Check engine light concerns related to coolant temperature signal faults
• Driveability issues tied to inaccurate engine temperature data

Installation Notes and Tips

Confirm the sensor location before ordering, since fitment varies by vehicle and may be listed on the engine block, cylinder head, or radiator hose. Match the connector shape, terminal count, and mounting style to the original part before installation. For best results, inspect the connector and wiring for corrosion or damage, and verify the cooling system is at a safe temperature before service.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management components. TX275 is cataloged with OE-style fitment data for a broad range of Audi, Volkswagen, and Porsche applications, including 2011-2026 coverage across multiple platforms.