Temperature Sensor

Bosch Coolant Temperature Sensor (0 280 130 014)

Before Cleaning (obviously) Bosch 0280130014

After cleaning and polishing

You can even get it on Amazon, who knew...

Results from testing the sensor in a pot of water on the kitchen stove. Measurements started out in ice water and continued until the water boiled. Measurements from my sensor are the blue X's. The other data is from J. Tang's blog and includes his original and new sensors (much nicer than mine, he even shows the test setup, I was too lazy to clean the stove for a photo shoot, plus, you would laugh at how the multimeter and thermometer were set up.....) This data was collected with a food thermometer and a Fluke Multimeter, all data was collected in good faith and is believed to be accurate. This data comes with no warranty, expressed, or implied, and should not be used to diagnose any part of a motor (or any other means of propulsion) vehicle that might carry a person(s), pets, valuable artwork, or Tribbles. This data is for entertainment purposes only! Although the entertainment value in not warrantied. In fact, just don't look at the data.

Graph of the data from my sensor with the upper and lower limits interpolated from the Volvo Shop Manual, see below. It would seem that my sensor falls within the correct range and would seem to be OK. Yay! 

From the Volvo Service Manual or "Green Book"

My raw data..... Left column resistance in Ohms, right column is temperature in F.

4280	43
4310	42.8
4500	41.9
4590	37.4
4460	37.6
4440	38.3
4150	48
3700	52
3200	59
2990	61
2800	62
2808	61.3
2585	69
2330	73
2180	77
2028	80
1948	83
1820	85.5
1700	88.7
1600	90.7
1500	94.6
1431	95.2
1431	95
1432	95.2
1350	101.5
1200	107.1
1100	111.4
1000	116.6
900	122
800	128.3
700	135.7
600	144.5
500	155.3
400	167
350	175.6
300	185
270	192.2
250	196.3
240	200
220	204.3
210	207.5
203	207
200	208
197.4	208.2
199.5	209