Febi 45443 Engine Coolant Temperature Sensor

Febi Engine Coolant Temperature Sensor 45443

Febi 45443 is an engine coolant temperature sensor for vehicles that rely on accurate coolant temperature input for engine management and gauge operation. With a 2-connection design and compact OE-style dimensions, it supports precise temperature reporting in a wide range of Mercedes-Benz, Smart, and Jeep applications.

Key Features

• Engine coolant temperature sensor for cooling system monitoring
• 2 electrical connections for direct sensor communication
• Compact dimensions: 50 mm height/thickness, 30 mm width
• Outer diameters: 18 mm and 9 mm
• Febi replacement part number 45443
• Cross-references OE-style part numbers such as 000 905 06 00 and 68068747AA for the same application

Product Details

This febi coolant temperature sensor is built for applications where the engine control unit depends on stable coolant temperature data to manage fueling, warm-up strategy, and cooling fan operation. The febi line is known for OE-style replacement components, and part number 45443 follows that approach with a fitment profile covering many late-model Mercedes-Benz vehicles, plus select Smart Fortwo and Jeep Grand Cherokee applications. If you are searching for a Mercedes-Benz coolant temperature sensor, febi 45443 is a direct-fit option for many 2021 Mercedes-Benz A220, C300, E350, GLC300, GLE450, GLS580, and Sprinter models.

Common Issues It May Address

• Incorrect coolant temperature readings on the dash or scan tool
• Hard starting or rough cold operation caused by inaccurate temperature input
• Cooling fan behavior that does not match actual engine temperature
• Fuel mixture or idle concerns tied to faulty coolant temperature data
• Check engine light conditions related to coolant temperature sensor faults

Installation Notes and Fitment

Fits 2021 Mercedes-Benz A220, N/A; 2021 Mercedes-Benz A35 AMG, N/A; 2021 Mercedes-Benz AMG GT, N/A; 2021 Mercedes-Benz AMG GT 43, N/A; 2021 Mercedes-Benz AMG GT 53, N/A; 2021 Mercedes-Benz AMG GT 63, N/A; 2021 Mercedes-Benz AMG GT 63 S, N/A; 2021 Mercedes-Benz AMG GT C, N/A; 2021 Mercedes-Benz C300, N/A; 2019-2021 Mercedes-Benz C43 AMG, N/A; 2017 Mercedes-Benz C43 AMG, N/A; 2021 Mercedes-Benz C63 AMG, N/A; 2021 Mercedes-Benz C63 AMG S, N/A; 2021 Mercedes-Benz CLA250, N/A; 2021 Mercedes-Benz CLA35 AMG, N/A; 2021 Mercedes-Benz CLA45 AMG, N/A; 2021 Mercedes-Benz CLS450, N/A; 2021 Mercedes-Benz CLS53 AMG, N/A; 2021 Mercedes-Benz E350, N/A; 2021 Mercedes-Benz E450, N/A; 2021 Mercedes-Benz E53 AMG, N/A; 2021 Mercedes-Benz E63 AMG S, N/A; 2021 Mercedes-Benz G550, N/A; 2021 Mercedes-Benz G63 AMG, N/A; 2021 Mercedes-Benz GLA250, N/A; 2021 Mercedes-Benz GLA35 AMG, N/A; 2021 Mercedes-Benz GLA45 AMG, N/A; 2021 Mercedes-Benz GLB250, N/A; 2021 Mercedes-Benz GLB35 AMG, N/A; 2020-2021 Mercedes-Benz GLC300, N/A; 2021 Mercedes-Benz GLC43 AMG, N/A; 2021 Mercedes-Benz GLC63 AMG, N/A; 2021 Mercedes-Benz GLC63 AMG S, N/A; 2021 Mercedes-Benz GLE350, N/A; 2021 Mercedes-Benz GLE450, N/A; 2021 Mercedes-Benz GLE53 AMG, N/A; 2021 Mercedes-Benz GLE580, N/A; 2021 Mercedes-Benz GLE63 AMG S, N/A; 2021 Mercedes-Benz GLS450, N/A; 2021 Mercedes-Benz GLS580, N/A; 2021 Mercedes-Benz GLS63 AMG, N/A; 2021 Mercedes-Benz Maybach GLS600, N/A; 2021 Mercedes-Benz Maybach S580, N/A; 2021 Mercedes-Benz Metris, N/A; 2021 Mercedes-Benz S500, N/A; 2021 Mercedes-Benz S560, N/A; 2021 Mercedes-Benz S580, N/A; 2021 Mercedes-Benz S63 AMG, N/A; 2021 Mercedes-Benz Sprinter 1500, N/A; 2020-2021 Mercedes-Benz Sprinter 2500, N/A; 2020-2021 Mercedes-Benz Sprinter 3500, N/A; 2019-2021 Mercedes-Benz Sprinter 3500XD, N/A; 2019-2020 Mercedes-Benz S560e, N/A; 2011-2015 Smart Fortwo, N/A; 2007-2009 Jeep Grand Cherokee, N/A.

Before installation, confirm the connector style, sensor location, and OE reference against the original part. This part number is commonly searched as febi 45443 coolant temperature sensor for Mercedes-Benz C300, E350, GLC300, and Sprinter applications.

Quality Assurance

Febi replacement parts are cataloged for OE-style fitment and application matching. Part number 45443 is listed with direct interchange references for common factory numbers, helping support accurate replacement selection for Mercedes-Benz, Smart, and Jeep cooling system repairs.