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Car Oil temperature sensor

Engine oil temperature sensor from leading manufacturers

  • BOSCH oil temperature sensor catalogue
  • FEBI BILSTEIN oil temperature sensor catalogue
  • TOPRAN oil temperature sensor catalogue
  • SWAG oil temperature sensor catalogue
  • METZGER oil temperature sensor catalogue
  • JP GROUP oil temperature sensor catalogue
  • HELLA oil temperature sensor catalogue
  • DELPHI oil temperature sensor catalogue
  • MEAT & DORIA oil temperature sensor catalogue
  • VEMO oil temperature sensor catalogue
  • BERU oil temperature sensor catalogue
  • MAGNETI MARELLI oil temperature sensor catalogue
  • AKS DASIS oil temperature sensor catalogue
  • MEYLE oil temperature sensor catalogue
  • ERA oil temperature sensor catalogue
  • VDO oil temperature sensor catalogue
  • FACET oil temperature sensor
  • EPS oil temperature sensor
  • KW oil temperature sensor
  • HELLA GUTMANN oil temperature sensor

Your Oil temperature sensor worn out? » Read more about common malfunctions • Repair • Replacement manual

Lubricant always at optimal temperature with the oil temperature sensor

Though small, the oil temperature sensor is an important component for smooth engine operation. As its name already says, it manages the temperature of the engine's lubricant. Its data are not immediately essential for the driver, but all the more so for the control unit.

Why is the oil temperature so important?

The amount of oil and the pressure are only two crucial factors for adequate lubrication. The oil temperature influences its lubricating performance. The hotter it is, the runnier it gets. Oil being too inviscid can no longer fulfil its task. In the professional jargon this is referred to as oil film rupture. The metal-on-metal friction of the engine's moving parts speeds up their wear.

Causes for high oil temperature

The oil temperature can be influenced by two factors:

  • heat from the combustion process
  • friction heat in the engine

The engine overheats when it is either insufficiently cooled or running too lean. The air/fuel mix being too lean generates a hot combustion running up the engine temperature. If the engine is supplied with insufficient oil or it gets too runny, this will add to the temperature as the internal friction intensifies.

Use of the oil temperature sensor

The oil temperature sensor was very important in air-cooled cars. These had no coolant circulation and therefore the only information source on engine temperature was the oil. Nowadays, only motorbikes have an air-cooled engine. In cars the oil temperature sensor is an additional temperature meter, compared by the control unit to data from the coolant temperature sensor. If there is too much deviation between both values, the control unit issues an error message. Additionally, retrofit oil temperature sensors can be installed. They are connected to a dashboard display. For the average car this is an interesting optical feature. It is only really useful for racing or rally cars, providing the driver with additional information on the engine condition. Maintaining a careful driving style it is useful to be aware of the exact oil temperature. The oil is heated by the engine faster and more directly than the coolant. Especially in the warming-up phase the oil temperature is considerably more precise than the values from the coolant temperature sensor. A rule of thumb states that under 50° C the car should only be driven in a most considerate manner.

Installation of an oil temperature sensor

The oil temperature sensor consists of the sensor and a display. Until recently the display was a round instrument installed on the dashboard. Nowadays a very interesting alternative exists: modern oil temperature sensors have a Bluetooth connection linking up with a smartphone, making your phone to an additional instrument. This solution has the following pros and 1 con:

  • + much easier to install
  • + no drilling in the dashboard required
  • + cheaper
  • + comfortable use
  • - remote hacking possible

All retrofitting solutions should always be bought as a set which is approved for the car type. The installation of the sensor makes an intervention in the engine electronics necessary. This is not so evident in modern engines. The extensive sensor system in a modern engine operates with precisely calculated data. The data of a sensor are in essence resistance values which can be changed by branching a cable. As a result the control unit receives faulty data which can lead to an error message. The oil temperature sensor is installed directly on the engine block. The products available in retail always have a detailed installation manual which should be exactly followed. Often, a blind bolt is already available on the engine block for installation of the oil temperature sensor. If this is not available, there is a very simple solution: the oil filler cap with integrated sensor makes this upgrade very easy: just renew the cap. Alternatively there is an adapter piece for which an additional hole should be drilled.

Prices for oil temperature sensors

The retrofitting kits for the oil temperature sensor are amazingly cheap. Very attractive digital display included, prices for a kit start at ca. 30 EUR(± £27). The choice ranges from classic round instruments with analogue display to small, elegant digital instruments with a large numerical display. Very interesting too are the combination instruments, with a rpm indicator and a combined water and oil temperature display.


Car oil temperature sensor : best-selling products
Oil temperature sensor
AUTOMEGA 150016510 oil temp sensor
  • Colour Coding: black
  • Spanner Size: 13
  • Thread Size: M10x1
  • Number of pins: 1
  • Plug Type: Blade Terminal
  • Supplementary Article / Supplementary Info: with gasket/seal
  • for OE number: 7203359
  • Condition:  new
150016510 AUTOMEGA replacement car oil temperature sensor price
AUTOMEGA | 150016510
£ 4,67
Condition:  new
Oil temperature sensor
ERA 330687 engine oil temperature sensor
  • Connecting thread: M10 x 1
  • Condition:  new
330687 ERA replacement car oil temperature sensor price
ERA | 330687
£ 6,37
Condition:  new
Oil temperature sensor
VEMO V10-72-1309 eot sensor
  • Number of pins: 2
  • Supplementary Article / Supplementary Info Info 2: with seal ring
  • Weight [kg]: 0,006
  • Supplementary Info: Original VEMO Quality
  • Packaging height [cm]: 6,7, 1,9
  • Packaging Depth [cm]: 6,8, 5
  • Condition:  new
V10-72-1309 VEMO replacement car oil temperature sensor price
VEMO | V10-72-1309
£ 29,93
Condition:  new
Oil temperature sensor
MAXGEAR 21-0360 oil temperature sensor
  • Spanner Size: 19
  • Number of pins: 2
  • Thread Size: M14 x 1,5
  • Number of connectors: 2
  • Weight [kg]: 0,020
  • Condition:  new
21-0360 MAXGEAR replacement car oil temperature sensor price
MAXGEAR | 21-0360
£ 8,54
Condition:  new
Oil temperature sensor
MAXGEAR 21-1047 oil temp sensor
  • Number of pins: 2
  • Weight [kg]: 0,01
  • Condition:  new
21-1047 MAXGEAR replacement car oil temperature sensor price
MAXGEAR | 21-1047
£ 10,60
Condition:  new
Oil temperature sensor
PREXAparts P202005 engine oil temperature sensor
  • Number of pins: 2
  • Condition:  new
P202005 PREXAparts replacement car oil temperature sensor price
PREXAparts | P202005
£ 8,27
Condition:  new
Sender Unit, oil tempe...
BOSCH 0 261 230 147 eot sensor
0 261 230 147 BOSCH replacement car oil temperature sensor price
BOSCH | 0 261 230 147
£ 58,71
Condition:  new
Sender Unit, oil tempe...
VEMO V30-72-0081 oil temperature sensor
  • Thread Size: M12 x 1,5
  • Switch point from [bar]0
  • Switch point to [bar]: 3
  • Weight [kg]: 0,103
  • Packaging width [cm]: 4,9, 4,58
  • Packaging height [cm]: 6,53, 9,2
  • Packaging Depth [cm]: 4,58, 9
  • Product line: Original Quality
  • Condition:  new
V30-72-0081 VEMO replacement car oil temperature sensor price
VEMO | V30-72-0081
£ 19,77
Condition:  new
Oil temperature sensor
FACET 7.3378 oil temp sensor
  • Thread Size: M12x1,5
  • Spanner Size: 17
  • Supplementary Article / Supplementary Info Info 2: without connecting pipe
  • Supplementary Info: Made in Italy - OE Equivalent
  • Condition:  new
7.3378 FACET replacement car oil temperature sensor price
FACET | 7.3378
£ 12,16
Condition:  new
Oil temperature sensor
FEBI BILSTEIN 33825 engine oil temperature sensor
  • Number of connectors: 1
  • Weight [kg]: 0,01
  • Supplementary Article / Supplementary Info Info 2: with seal ring
  • External Thread Size: M10 x 1
  • Condition:  new
33825 FEBI BILSTEIN replacement car oil temperature sensor price
FEBI BILSTEIN | 33825
£ 9,68
Condition:  new
Oil temperature sensor
EPS 1.830.378 eot sensor
  • Thread Size: M12x1,5
  • Spanner Size: 17
  • Supplementary Article / Supplementary Info Info 2: without connecting pipe
  • Supplementary Info: Made in Italy - OE Equivalent
  • Condition:  new
1.830.378 EPS replacement car oil temperature sensor price
EPS | 1.830.378
£ 12,65
Condition:  new
Sensor, oil temperature
QUINTON HAZELL XEMS235 oil temperature sensor
  • Thread Size: M14 x 1,5
  • Spanner Size: 19
  • Number of pins: 2
  • Housing Colour: black
  • Connector Shape: oval
  • Condition:  new
XEMS235 QUINTON HAZELL replacement car oil temperature sensor price
QUINTON HAZELL | XEMS235
£ 10,70
Condition:  new