Holstein 2CTS0098 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for BMW and Land Rover

Holstein 2CTS0098 is an engine coolant temperature sensor for select BMW and Land Rover applications. It provides the temperature signal used by the engine management system to monitor coolant conditions and support proper fuel and cooling control.

Key Features

• Engine coolant temperature sensor for select BMW X5, 525i, 530i, 540i, M5, Z8, Z3, 740i, 740iL, 750iL, 528i, 318i, 318is, 318ti, 323i, 323is, 328i, 328is, M3, 840Ci, and 850Ci applications
• Also fits select Land Rover Freelander, Range Rover, and Discovery models
• Holstein Parts product line
• Cross-references Monroe Shocks & Struts 171454 for the same application
• Part number: 2CTS0098

Detailed Description

Holstein Parts 2CTS0098 is an engine coolant temperature sensor used in cooling-system and engine-management circuits on select BMW and Land Rover vehicles. This sensor helps the vehicle control module read coolant temperature so the system can manage warm-up strategy, fan operation, and temperature-related engine adjustments. It is a direct-fit replacement for a wide range of applications, including BMW X5 models from 2000-2006, BMW 525i and 530i models, and Land Rover Discovery, Freelander, and Range Rover coverage across multiple model years. The Holstein 2CTS0098 part number is also referenced by several aftermarket interchange numbers for the same application.

What It Is Used For

• Incorrect coolant temperature readings
• Temperature-related check engine light concerns
• Poor cold-start or warm-up behavior
• Cooling fan control issues tied to sensor input
• Engine management faults caused by inaccurate coolant data

Installation Notes and Tips

Verify the sensor location before ordering, as listed applications include units located at the water pump or cylinder head depending on vehicle and engine configuration. Confirm the model year and VIN notes for Land Rover Discovery coverage, including the 2003 Discovery listing limited to vehicles up to VIN #3A818214. Compare the original connector and thread style to the removed sensor before installation.

Quality Assurance

Holstein Parts supplies this sensor as part of its automotive replacement line for cooling and engine-management service work. Confirm fitment against the vehicle listing and OE reference before installation. Part number 2CTS0098 is used across multiple BMW and Land Rover applications for accurate coolant temperature signal replacement.