Bosch 0281002209 Engine Coolant Temperature Sensor

Bosch Engine Coolant Temperature Sensor

Bosch Engine Coolant Temperature Sensor 0281002209 is built for accurate coolant temperature measurement with fast response and durable OE-quality construction. It uses a threaded mount, a rectangular 1-connector design, and a 2-blade male terminal layout for a direct-style electrical connection in the cooling system.

For drivers searching for an engine coolant temperature sensor for Bosch 0281002209, this part supports precise temperature feedback that helps the engine control system manage fuel delivery, idle quality, and cooling fan operation. It is a practical choice for BMW 3 Series and BMW 5 Series applications where reliable coolant temperature data matters.

Key Features

• Bosch OE-quality engine coolant temperature sensor
• Part number 0281002209 for catalog and cross-reference lookup
• Threaded mounting type with 10.85 threaded end diameter
• 1 rectangular male connector with 2 male blade terminals
• Metal and plastic construction for durability
• Fast response time and wide measuring range for temperature monitoring
• No wiring harness included

Detailed Description

This Bosch coolant temperature sensor is designed to provide the engine management system with accurate coolant temperature readings. That information is used to help regulate cold-start enrichment, warm-up strategy, radiator fan control, and overall thermal management. The compact sensor body measures approximately 2.40 inches long, 0.75 inches wide, and 0.89 inches high, with a lightweight threaded design for a secure fit in the cooling circuit.

Bosch 0281002209 is a strong match for buyers looking for an OE-style engine coolant temperature sensor for BMW 3 Series and BMW 5 Series vehicles. This part cross-references 4010644 for the same application.

What It Helps Solve

• Incorrect coolant temperature readings on the dash or scan tool
• Hard starting or rough running during cold operation
• Cooling fan cycling problems caused by inaccurate temperature input
• Fuel mixture issues related to faulty engine temperature data
• Check engine light concerns tied to coolant temperature sensor faults

Installation Notes and Tips

Verify connector shape, terminal count, and threaded end diameter before installation. Inspect the cooling system connector and sealing surface for corrosion, damage, or coolant residue before fitting Bosch 0281002209. Because no wiring harness is included, confirm the vehicle-side connector is in good condition and matches the sensor terminals. Always follow the vehicle service procedure for coolant level control and sensor replacement.

Quality Assurance

Bosch supplies OE-quality temperature sensors engineered for accurate measurement, quick signal response, and dependable durability. This part is built to meet the demands of modern engine cooling and temperature monitoring systems.