Temperature sensor in e39...

[EuJax]

Hi bimmerholic,

In the morning its always at 28c or 29c, basement carpark somemore...cannot be...wonder what went wrong.

 

[affan66]

have you checked the temp sensor location?
If it is in the right place, change it. Sounds like a worn out sensor.

 

[Herbert]

This weekend i'll go down under and clean my temp sensor. Could be measuring wrong temp reading prolly due mud/dirt/grimp/grease/oil/ and all the yucky eeeky stuff stucked over the sensor...therefore registering a much higher reading than actual.

Bro,

Have you done the cleaning and what is the result??

 

[mick123]

just to share......mine registered 39C this morning under the scorching heat and 25C in the evening after the rain. looks like our weather is playing havoc.

 

[bimmerholic]

Bro,

Have you done the cleaning and what is the result??

Unfortunately didn't find time to get down and dirty last weekend...hopefully this Sat. Will keep you guys posted in this thread.

 

[rizaljai]

our engine heat may affect our temperature reading is it?Worst if under hot sun with traffic jamm..

 

[bimmerholic]

our engine heat may affect our temperature reading is it?Worst if under hot sun with traffic jamm..

yupp....i believe so...since the hot air escapes on a lower surface...

 

[jaleeks23]

i seriously think these days the temperature and weather has gone havoc...2012! Maybe get a thermometer and put on the road surface to test the temperature since our sensor is at bumper height, in front of the right wheel.
aircon also can't cool down the internal fast enough these days, even when there's no problem with aircon, pressure all OK, gas all enough, at night freezing cold even when set to 25degree.
I sometimes drive with the "test" on to monitor my KTMP (core temperature I think) as I think that's the engine's temperature, so far has been consistently at 90degree-92degree when the indicator is at the centre. In jams, can go slightly higher at 94 but as soon as start moving, it goes down back to 90-92

 

[bimmer73]

highest Temp indicated on my car during the day is 41C. taking in consideration of the engine heat