Standard Ignition TX56 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Mercedes-Benz

Standard Ignition TX56 is an engine coolant temperature sensor built for direct replacement in select Mercedes-Benz applications. It uses a bolt-on attachment method, a round 2-pin connector, and an M14-1.50 thread size for a straightforward OE-style fit.

Use this Standard Ignition TX56 coolant temperature sensor when servicing Mercedes-Benz 300E, 300CE, 300TE, 300SE, 300SEL, 300SL, 190E, 260E, 420SEL, 560SEC, 560SEL, or 560SL models listed below.

Key Features

• Engine coolant temperature sensor for temperature signal input to the engine management system
• Bolt-on attachment method for secure installation
• Round connector with 2 male terminals and 2 female terminals
• M14-1.50 thread size for the specified Mercedes-Benz applications
• Direct replacement part number TX56

Detailed Description

The Standard Ignition TX56 is an engine coolant temperature sensor designed for Mercedes-Benz vehicles that rely on accurate coolant temperature feedback for fuel and engine control. Its 2-terminal, round connector design and cylindrical tube terminal style support OE-style electrical connection, while the M14-1.50 thread specification matches the listed applications. This part cross-references Mercedes-Benz OE 0065427717 for the same application.

Fits 1986-1989 Mercedes-Benz 300E, N/A; Fits 1988-1989 Mercedes-Benz 300E, N/A; Fits 1992 Mercedes-Benz 300E, N/A; Fits 1988-1989 Mercedes-Benz 300CE, N/A; Fits 1992 Mercedes-Benz 300CE, N/A; Fits 1988-1989 Mercedes-Benz 300TE, N/A; Fits 1991-1993 Mercedes-Benz 300TE, N/A; Fits 1988-1989 Mercedes-Benz 300SE, N/A; Fits 1991 Mercedes-Benz 300SE, N/A; Fits 1988-1989 Mercedes-Benz 300SEL, N/A; Fits 1991 Mercedes-Benz 300SEL, N/A; Fits 1992 Mercedes-Benz 300SL, N/A; Fits 1986-1989 Mercedes-Benz 260E, N/A; Fits 1986-1989 Mercedes-Benz 420SEL, N/A; Fits 1986-1989 Mercedes-Benz 560SEC, N/A; Fits 1986-1989 Mercedes-Benz 560SEL, N/A; Fits 1986-1989 Mercedes-Benz 560SL, N/A; Fits 1986-1989 Mercedes-Benz 190E, N/A; Fits 1990 Mercedes-Benz 190E, N/A, Compatible with vehicles equipped with Federal Emissions.

Common Problems This Part Can Address

• Incorrect coolant temperature readings at the engine control system
• Hard starting or rough running related to inaccurate temperature input
• Poor fuel mixture control caused by a faulty sensor signal
• Temperature gauge or engine management concerns tied to sensor failure
• Diagnostic trouble codes associated with coolant temperature circuit faults

Installation Notes and Tips

Confirm the connector style, thread size, and vehicle application before installation. Inspect the coolant passage and electrical connector for corrosion or damage, and verify the sensor seats correctly with the bolt-on mounting style. On 1990 Mercedes-Benz 190E applications, confirm Federal Emissions configuration before ordering. Standard Ignition TX56 is also referenced by part numbers SU6103, TS5572, and WT5019 for the same application.

Quality Assurance

Standard Ignition supplies replacement electrical and engine management components for service applications, and TX56 is built to match the listed fitment and connector specifications for the vehicles shown.