Delphi TS10269 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Mercedes-Benz

Delphi TS10269 is an engine coolant temperature sensor built for Mercedes-Benz applications that rely on accurate coolant temperature input for engine management. With OE heritage and more than 100 years of supplier experience, Delphi builds aftermarket parts using knowledge developed alongside top automakers.

• Engine coolant temperature sensor for Mercedes-Benz cooling system service
• Connector quantity: 1 with oval female connector
• Terminal type: pin; terminal quantity: 4; terminal gender: male
• Push-on mounting type for direct replacement service
• Package contents: engine coolant temperature sensor and instruction sheet
• Wiring harness not included

Detailed Product Overview

The Delphi TS10269 coolant temperature sensor reports engine coolant temperature to the vehicle control system so the engine can manage fueling, idle quality, fan operation, and temperature-related diagnostics. It is a direct-fit style replacement for a wide range of Mercedes-Benz models, including C300, E350, GLE350, S550, and Sprinter 2500 applications. This part cross-references Standard Ignition TS-615 for the same application.

Compatible Mercedes-Benz coverage includes many long-tail search applications such as Fits 2015-2023 Mercedes-Benz C300, N/A; Fits 2006-2016 Mercedes-Benz E350, N/A; and Fits 2010-2023 Mercedes-Benz Sprinter 2500, N/A. The Delphi TS10269 also serves numerous AMG, EQ, GLE, GLS, and S-Class variants across model years listed in the fitment data.

Common Issues This Sensor Can Help Address

• Incorrect coolant temperature readings in the engine control system
• Temperature-related warning lights or diagnostic trouble codes
• Rough idle or drivability concerns tied to coolant temperature input
• Cooling fan behavior that does not match actual engine temperature
• Hard starting or fuel mixture issues caused by inaccurate sensor data

Installation Notes and Tips

Verify connector shape, terminal count, and mounting style before installation. This sensor uses a female oval connector, four male terminals, and push-on mounting, so matching the OE connector and housing is important for proper fitment. Inspect the thermostat housing or sensor bore for corrosion, debris, or damaged sealing surfaces before installing the new unit. Confirm the vehicle application against the fitment list for Mercedes-Benz C300, E350, G550, GLC300, and other listed models before service.

Quality Assurance

Delphi draws on OE heritage and supplier experience built over more than a century, bringing factory-informed engineering to aftermarket replacement parts. The TS10269 is packaged with an instruction sheet to support correct installation and service.