Standard Ignition TS-574 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for BMW and Land Rover

Standard Ignition TS-574 is an engine coolant temperature sensor built for direct-fit service on select BMW and Land Rover applications. It uses a screw-on attachment method with a round, plug-in female connector and 4 bullet terminals for a secure electrical connection.

Compatible with BMW 530i, BMW X5, BMW 540i, BMW M5, BMW Z8, BMW Z3, and Land Rover Range Rover and Discovery applications listed below, this sensor supports accurate coolant temperature reporting for vehicles with 12-volt electrical systems. The TS-574 is also a fitment match for several BMW models with water pump, thermostat housing, cylinder head, or water outlet mounting locations.

• Screw-on engine coolant temperature sensor design
• Round female plug-in connector with 4 male bullet terminals
• Black and gold finish with brass and plastic construction
• 12-volt electrical specification
• Direct replacement for select BMW and Land Rover cooling system applications

Fitment Details

• Fits 2006 BMW 650i, on water pump.
• Fits 2001-2006 BMW X5, on water pump.
• Fits 2003-2005 Land Rover Range Rover.
• Fits 2001-2003 BMW 530i, located on cylinder head.
• Fits 1999-2003 BMW 540i, on water pump.
• Fits 2001-2003 BMW M5, on water outlet.
• Fits 2000-2003 BMW Z8, on thermostat housing.
• Fits 1996-2002 BMW Z3.
• Fits 2002 Land Rover Discovery, prior to purchase, ensure compatibility with vehicle's alternator for proper fit.
• Fits 1999-2002 Land Rover Range Rover, prior to purchase, ensure compatibility with vehicle's alternator for proper fit.
• Fits 1999-2001 BMW 740i, on water pump.
• Fits 1994-2001 BMW 740iL, on water pump.
• Fits 1999-2001 BMW 750iL, on water pump.
• Fits 1999-2000 BMW 528i, located on cylinder head.
• Fits 2000 BMW M5, on thermostat housing.
• Fits 2000 BMW X5, located on cylinder head.
• Fits 1999 BMW 318i, 4 Term.
• Fits 1999 BMW 318is, 4 Term.
• Fits 1999 BMW 318ti, 4 Term.
• Fits 1996-1999 BMW 328is.
• Fits 1996-1999 BMW M3.
• Fits 1999 BMW M5.
• Fits 1996-1998 BMW 318i.
• Fits 1996-1998 BMW 318is.
• Fits 1996-1998 BMW 318ti.
• Fits 1996-1998 BMW 328i.
• Fits 1997-1998 BMW 528i.
• Fits 1997-1998 BMW 540i.
• Fits 1997-1998 BMW 740i, 4 Term.
• Fits 1994-1995 BMW 740i, 4 Term.
• Fits 1995-1998 BMW 750iL.
• Fits 1997 BMW 323i.
• Fits 1996-1997 BMW 840Ci.
• Fits 1996-1997 BMW 850Ci.

What This Sensor Helps Address

• Incorrect coolant temperature readings on the dash or scan tool
• Hard starting or rough running related to temperature input errors
• Cooling fan operation concerns tied to sensor signal issues
• Check engine light conditions related to coolant temperature circuit faults
• Replacement needs for worn or failed BMW coolant temperature sensors

Installation Notes and Tips

Verify the mounting location before installation, since listed applications include water pump, thermostat housing, cylinder head, and water outlet positions. Confirm connector style, terminal layout, and vehicle configuration before ordering, especially on Land Rover Discovery and Range Rover applications where alternator compatibility is noted in the fitment data.

Standard Ignition TS-574 is also referenced by cross numbers 1703993 and SU5173 for the same application. Use the vehicle year, make, model, and mounting location to confirm the correct match before installation.

Quality Assurance

Standard Ignition supplies this engine coolant temperature sensor as a replacement part for select BMW and Land Rover cooling system applications. The TS-574 is built with brass and plastic materials and a 12-volt electrical specification to match the listed fitment requirements.