What is a Coolant Sensor and what happens if it fails to function properly?
The engine coolant temperature (ECT) sensor is a relatively simple sensor that monitors the internal temperature of the engine. Coolant inside the engine block and cylinder head(s) absorbs heat from the cylinders when the engine is running. The coolant sensor detects the change in temperature and signals the Powertrain Control Module (PCM) so it can tell if the engine is cold, warming up, at normal operating temperature or overheating.
The coolant sensor is extremely important because the sensor's input to the PCM affects the operating strategy of the entire engine management system. That's why the coolant sensor is often called the "master" sensor.
Many of the fuel, ignition, emissions and drivetrain functions handled by the PCM are affected by the engine's operating temperature. A different operating strategy is used when the engine is cold than when it is warm. This is done to improve cold driveability, idle quality and emissions. Consequently, if the coolant sensor fails or is giving the PCM a false reading, it can upset a lot of things.
Find your Car:
12 Months Warranty on this part
11.03 - 06.11 BMW 1 (E87) 116 i
07.04 - 02.07 BMW 1 (E87) 118 i
09.06 - 06.11 BMW 1 (E87) 118 i
11.03 - 06.11 BMW 1 (E87) 120 i
11.03 - 06.11 BMW 1 (E87) 120 i
09.06 - 06.11 BMW 1 (E87) 120 i
03.05 - 09.12 BMW 1 (E87) 130 i
09.06 - 06.11 BMW 1 (E87) 118 d
03.03 - 06.11 BMW 1 (E87) 120 d
10.07 - 10.13 BMW 1 Coupe (E82) 125 i
10.07 - 10.13 BMW 1 Coupe (E82) 135 i
04.11 - 06.12 BMW 1 Coupe (E82) M
03.08 - 12.13 BMW 1 Convertible (E88) 120 i
03.08 - 12.13 BMW 1 Convertible (E88) 120 i
03.08 - 12.13 BMW 1 Convertible (E88) 125 i
03.08 - 12.13 BMW 1 Convertible (E88) 135 i
08.11 - BMW 1 (F20) 125 i
10.13 - BMW 2 Coupe (F22, F87) 220 i
07.14 - BMW 2 Coupe (F22, F87) 228 i
12.98 - 08.00 BMW 3 Compact (E36) 316 i
09.98 - 02.05 BMW 3 Sedan (E46) 316 i
02.98 - 09.01 BMW 3 Sedan (E46) 318 i
09.01 - 02.05 BMW 3 Sedan (E46) 318 i
03.98 - 09.00 BMW 3 Sedan (E46) 320 i
09.00 - 02.05 BMW 3 Sedan (E46) 320 i
03.98 - 09.00 BMW 3 Sedan (E46) 323 i
09.00 - 02.05 BMW 3 Sedan (E46) 325 i
02.98 - 06.00 BMW 3 Sedan (E46) 328 i
06.00 - 02.05 BMW 3 Sedan (E46) 330 i
04.98 - 09.01 BMW 3 Sedan (E46) 320 d
06.01 - 02.05 BMW 3 Compact (E46) 316 ti
03.01 - 12.04 BMW 3 Compact (E46) 318 ti
06.01 - 02.05 BMW 3 Compact (E46) 325 ti
11.99 - 09.01 BMW 3 Coupe (E46) 318 Ci
12.00 - 05.06 BMW 3 Coupe (E46) 318 Ci
03.05 - 07.06 BMW 3 Coupe (E46) 318 Ci
01.00 - 05.06 BMW 3 Coupe (E46) 320 Ci
04.99 - 09.00 BMW 3 Coupe (E46) 323 Ci
09.00 - 07.06 BMW 3 Coupe (E46) 325 Ci
04.99 - 06.00 BMW 3 Coupe (E46) 328 Ci
06.00 - 07.06 BMW 3 Coupe (E46) 330 Ci
06.00 - 07.06 BMW 3 Coupe (E46) M3
06.03 - 07.06 BMW 3 Coupe (E46) M3
04.00 - 09.00 BMW 3 Convertible (E46) 323 Ci
09.00 - 12.07 BMW 3 Convertible (E46) 325 Ci
06.00 - 12.07 BMW 3 Convertible (E46) 330 Ci
04.01 - 12.07 BMW 3 Convertible (E46) M3 3.2
10.99 - 09.01 BMW 3 Touring (E46) 318 i
09.00 - 02.05 BMW 3 Touring (E46) 320 i
06.00 - 02.05 BMW 3 Touring (E46) 330 i
03.05 - 08.07 BMW 3 Sedan (E90) 318 i
06.04 - 09.07 BMW 3 Sedan (E90) 320 i
02.07 - 12.11 BMW 3 Sedan (E90) 320 i
03.07 - 12.11 BMW 3 Sedan (E90) 320 i
09.05 - 02.07 BMW 3 Sedan (E90) 323 i
01.05 - 10.11 BMW 3 Sedan (E90) 325 i
03.07 - 12.11 BMW 3 Sedan (E90) 325 i
12.04 - 08.07 BMW 3 Sedan (E90) 330 i
09.07 - 10.11 BMW 3 Sedan (E90) 330 i
03.06 - 12.11 BMW 3 Sedan (E90) 335 i
03.07 - 12.11 BMW 3 Sedan (E90) M3
12.04 - 09.07 BMW 3 Sedan (E90) 320 d
12.04 - 12.11 BMW 3 Sedan (E90) 320 d
09.05 - 09.08 BMW 3 Sedan (E90) 330 d
09.08 - 12.11 BMW 3 Sedan (E90) 330 d
09.05 - 06.12 BMW 3 Touring (E91) 320 i
02.07 - 12.12 BMW 3 Touring (E91) 320 i
04.06 - 06.07 BMW 3 Touring (E91) 323 i
12.04 - 12.12 BMW 3 Touring (E91) 325 i
09.07 - 06.12 BMW 3 Touring (E91) 325 i
08.05 - 08.07 BMW 3 Touring (E91) 330 i
09.07 - 06.12 BMW 3 Touring (E91) 330 i
09.06 - 06.12 BMW 3 Touring (E91) 335 i
03.07 - 12.13 BMW 3 Coupe (E92) 320 i
11.05 - 02.10 BMW 3 Coupe (E92) 325 i
03.07 - 06.13 BMW 3 Coupe (E92) 325 i
09.06 - 02.10 BMW 3 Coupe (E92) 330 i
09.06 - 08.12 BMW 3 Coupe (E92) 330 i
11.05 - 06.13 BMW 3 Coupe (E92) 335 i
03.07 - 12.13 BMW 3 Coupe (E92) M
09.06 - 10.13 BMW 3 Convertible (E93) 320 i
03.07 - 12.13 BMW 3 Convertible (E93) 325 i
03.07 - 12.13 BMW 3 Convertible (E93) 330 i
05.06 - 10.13 BMW 3 Convertible (E93) 335 i
03.07 - 10.13 BMW 3 Convertible (E93) M3
04.11 - BMW 3 (F30, F80) 320 i
04.11 - 07.16 BMW 3 (F30, F80) 328 i
02.12 - 06.15 BMW 3 Touring (F31) 320 i
01.12 - 06.15 BMW 3 Touring (F31) 328 i
08.12 - 02.15 BMW 3 Gran Turismo (F34) 328 i
07.13 - BMW 4 Coupe (F32, F82) 428 i
07.14 - BMW 4 Convertible (F33, F83) 420 i
10.13 - BMW 4 Convertible (F33, F83) 428 i
03.14 - BMW 4 Gran Coupe (F36) 420 i
03.14 - BMW 4 Gran Coupe (F36) 428 i
01.96 - 06.03 BMW 5 Sedan (E39) 520 i
11.95 - 09.00 BMW 5 Sedan (E39) 523 i
09.00 - 06.03 BMW 5 Sedan (E39) 525 i
11.95 - 09.00 BMW 5 Sedan (E39) 528 i
09.00 - 06.03 BMW 5 Sedan (E39) 530 i
04.96 - 03.99 BMW 5 Sedan (E39) 535 i
04.99 - 06.03 BMW 5 Sedan (E39) 535 i
04.96 - 06.03 BMW 5 Sedan (E39) 540 i
10.98 - 06.03 BMW 5 Sedan (E39) M5
01.97 - 09.00 BMW 5 Touring (E39) 528 i
09.00 - 05.04 BMW 5 Touring (E39) 530 i
09.07 - 03.10 BMW 5 Sedan (E60) 520 i
01.07 - 03.10 BMW 5 Sedan (E60) 523 i
09.03 - 03.10 BMW 5 Sedan (E60) 525 i
10.04 - 12.09 BMW 5 Sedan (E60) 525 i
12.01 - 02.05 BMW 5 Sedan (E60) 530 i
09.04 - 02.07 BMW 5 Sedan (E60) 530 i
09.06 - 12.09 BMW 5 Sedan (E60) 530 i
09.03 - 03.10 BMW 5 Sedan (E60) 545 i
07.05 - 03.10 BMW 5 Sedan (E60) 540 i
07.05 - 03.10 BMW 5 Sedan (E60) 550 i
09.04 - 03.10 BMW 5 Sedan (E60) M5
04.06 - 12.09 BMW 5 Sedan (E60) 520 d
09.02 - 09.05 BMW 5 Sedan (E60) 530 d
04.05 - 02.07 BMW 5 Sedan (E60) 530 d
09.04 - 02.07 BMW 5 Touring (E61) 530 i
01.07 - 12.10 BMW 5 Touring (E61) 530 i
08.09 - 06.12 BMW 5 Gran Turismo (F07) 550 i
10.10 - 10.16 BMW 5 (F10) 520 i
10.10 - 10.16 BMW 5 (F10) 528 i
01.09 - 08.11 BMW 5 (F10) 528 i
01.09 - 06.13 BMW 5 (F10) 550 i
08.12 - 10.16 BMW 5 (F10) 550 i
10.10 - 10.16 BMW 5 (F10) M5
02.13 - 10.16 BMW 5 (F10) M5 Competition
01.04 - 08.05 BMW 6 (E63) 645 Ci
07.05 - 07.10 BMW 6 (E63) 650 i
09.05 - 07.10 BMW 6 (E63) M
04.04 - 08.05 BMW 6 Convertible (E64) 645 Ci
07.05 - 07.10 BMW 6 Convertible (E64) 650 i
07.06 - 07.10 BMW 6 Convertible (E64) M
03.11 - BMW 6 Convertible (F12) 650 i
10.11 - BMW 6 Convertible (F12) 650 i
01.12 - BMW 6 Convertible (F12) M6
02.14 - BMW 6 Convertible (F12) M6
11.10 - BMW 6 Coupe (F13) 650 i
10.11 - BMW 6 Coupe (F13) 650 i
01.12 - BMW 6 Coupe (F13) M6
02.14 - BMW 6 Coupe (F13) M6
11.11 - BMW 6 Gran Coupe (F06) 650 i
12.12 - BMW 6 Gran Coupe (F06) M6
02.14 - BMW 6 Gran Coupe (F06) M6
11.01 - 02.05 BMW 7 Sedan (E65, E66, E67) 735 i, Li
07.05 - 07.08 BMW 7 Sedan (E65, E66, E67) 740 i, Li
11.01 - 07.08 BMW 7 Sedan (E65, E66, E67) 745 i, Li
07.05 - 07.08 BMW 7 Sedan (E65, E66, E67) 750 i, Li
01.03 - 07.08 BMW 7 Sedan (E65, E66, E67) 760 i, Li
10.08 - 12.15 BMW 7 Sedan (F01, F02, F03, F04) 740 i
10.08 - 12.15 BMW 7 Sedan (F01, F02, F03, F04) 750 i
10.12 - 12.15 BMW 7 Sedan (F01, F02, F03, F04) 750 i
09.09 - 12.15 BMW 7 Sedan (F01, F02, F03, F04) 760 i
01.10 - 06.15 BMW X1 SAV (E84) sDrive 18 i
09.11 - 06.15 BMW X1 SAV (E84) sDrive 20 i
01.10 - 06.15 BMW X1 SAV (E84) xDrive 25 i
04.11 - 06.15 BMW X1 SAV (E84) xDrive 28 i
07.05 - 08.08 BMW X3 (E83) 2.0 i
01.04 - 08.06 BMW X3 (E83) 2.5 i
09.06 - 08.08 BMW X3 (E83) 2.5 si
09.08 - 12.11 BMW X3 (E83) xDrive 25 i
01.04 - 08.06 BMW X3 (E83) 3.0 i xDrive
09.06 - 08.08 BMW X3 (E83) 3.0 si
09.08 - 12.11 BMW X3 (E83) xDrive 30 i
11.03 - 08.07 BMW X3 (E83) 2.0 d
01.04 - 08.05 BMW X3 (E83) 3.0 d
09.05 - 08.08 BMW X3 (E83) 3.0 d
09.08 - 08.10 BMW X3 (E83) xDrive 30 d
09.11 - BMW X3 (F25) xDrive 20 i
08.11 - BMW X3 (F25) xDrive 28 i
04.11 - BMW X3 (F25) xDrive 28 i
05.00 - 12.06 BMW X5 (E53) 3.0 i
12.03 - 09.06 BMW X5 (E53) 4.4 i
04.04 - 09.06 BMW X5 (E53) 4.8 is
02.06 - 09.08 BMW X5 (E70) 3.0 si
09.08 - 03.10 BMW X5 (E70) xDrive 30 i
09.09 - 06.13 BMW X5 (E70) M
02.07 - 09.08 BMW X5 (E70) 4.8 i xDrive
09.08 - 06.13 BMW X5 (E70) xDrive 48 i
07.09 - 06.13 BMW X5 (E70) xDrive 50 i
02.07 - 09.08 BMW X5 (E70) 3.0 d
10.07 - 03.10 BMW X5 (E70) 3.0 sd
07.13 - BMW X5 (F15, F85) xDrive 50 i
06.07 - 06.14 BMW X6 (E71, E72) xDrive 35 i
10.07 - 06.14 BMW X6 (E71, E72) xDrive 50 i
07.08 - 06.14 BMW X6 (E71, E72) M
06.07 - 03.10 BMW X6 (E71, E72) xDrive 35 d
10.95 - 03.99 BMW Z3 Roadster (E36) 1.9 i
04.99 - 01.03 BMW Z3 Roadster (E36) 2.0 i
08.00 - 01.03 BMW Z3 Roadster (E36) 2.2 i
04.97 - 06.00 BMW Z3 Roadster (E36) 2.8 i
06.00 - 01.03 BMW Z3 Roadster (E36) 3.0 i
03.97 - 06.01 BMW Z3 Roadster (E36) M 3.2
07.97 - 06.00 BMW Z3 Coupe (E36) 2.8 i
02.98 - 06.01 BMW Z3 Coupe (E36) M
02.03 - 12.05 BMW Z4 Roadster (E85) 2.5 i
09.05 - 02.09 BMW Z4 Roadster (E85) 2.5 si
02.03 - 10.05 BMW Z4 Roadster (E85) 3.0 i
01.06 - 12.08 BMW Z4 Roadster (E85) 3.0 si
03.06 - 02.09 BMW Z4 Roadster (E85) M
03.06 - 01.09 BMW Z4 Coupe (E86) 3.0 si
03.06 - 01.09 BMW Z4 Coupe (E86) M
09.11 - BMW Z4 Roadster (E89) sDrive 20 i
05.09 - BMW Z4 Roadster (E89) sDrive 23 i
09.11 - BMW Z4 Roadster (E89) sDrive 28 i
05.09 - BMW Z4 Roadster (E89) sDrive 30 i
05.09 - BMW Z4 Roadster (E89) sDrive 35 i
09.10 - BMW Z4 Roadster (E89) sDrive 35 is
Shipment:
Shipments are done on the same day and it takes 3 to 5 business days to arrive to your place
Pick up is available in Black Rock 3193
Warranty:
12 Months warranty is valid on the following conditions:
- The product was installed in a professional manner
- the product was handle and treated under typical circumstances/conditions
- The product was installed by a professional mechanic
- The warranty will be only for the cost of the item, we will not responsible for installation or other fees like labor expenses, towing expenses, additional repair expenses or other related expenses
- The customer provides substantial information about the tests done to the system surrounding the part previous to the installation to ensure the safety of the purchased part
IF YOU HAVE ANY QUESTIONS PLEASE MESSAGE US