Standard Ignition TX57 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Audi

Standard Ignition TX57 is an engine coolant temperature sensor built for direct replacement in select Audi applications. It uses a bolt-on attachment, a square female plug-in connector, and a 2-blade male terminal layout with an M10-1.0 thread size for a straightforward OE-style fit.

Compatible With 1987-1991 Audi 5000 Quattro, Audi 80 Quattro, Audi 90, Audi 90 Quattro, Audi 100, Audi 100 Quattro, and Audi Coupe applications. Standard Ignition TX57 is a practical choice when you need accurate coolant temperature input for engine management and gauge operation on these vehicles.

Key Features

• Engine coolant temperature sensor for select Audi models
• Bolt-on mounting for secure installation
• Square female connector with plug-in design
• 2-blade male terminals for the specified electrical connection
• M10-1.0 thread size for the listed applications
• 12-volt electrical specification
• Standard Ignition TX57 replacement part number

Detailed Description

Standard Ignition TX57 is an engine coolant temperature sensor intended for Audi 100, Audi 100 Quattro, Audi 90, Audi 90 Quattro, Audi 80 Quattro, Audi 5000 Quattro, and Audi Coupe vehicles within the listed model years. The sensor’s threaded M10-1.0 design, bolt-on attachment method, and square connector configuration support a direct-fit replacement where the original sensor uses the same electrical and mechanical interface. This part cross-references Bosch 0280130053 for the same application.

As a coolant temperature input component, TX57 helps the vehicle’s control system read engine temperature data from the cooling circuit. Standard Ignition TX57 is identified by part number TX57 and is also referenced by interchange numbers used in the same application family.

What It Helps Address

• Incorrect coolant temperature readings
• Hard starting or poor cold-engine fuel control caused by faulty temperature input
• Temperature gauge behavior that does not match actual engine conditions
• Check engine concerns related to coolant temperature sensor signal faults
• Cooling system control issues tied to inaccurate sensor data

Installation Notes and Tips

Verify the connector shape, terminal count, and thread size before installation. Confirm the sensor location on the engine cooling circuit and compare the removed unit to Standard Ignition TX57 for connector and mounting match. Clean the mounting surface and inspect the harness connector for corrosion or damaged terminals before reconnecting.

Quality Assurance

Standard Ignition supplies replacement electrical components for service applications, and TX57 is built to match the listed fitment and connection requirements for the specified Audi vehicles.