Engine Temp.....

**skip85** · 28th November 2010, 19:48

Hi All,

My 1.9 150 CDTI used to run between 80-90 on the dial. It now wont get above 80 even before cold weather started. Any ideas please?

**Jezzy** · 28th November 2010, 20:24

Sounds like the thermostat is stuck open.

**barney490** · 28th November 2010, 20:33

**skip85** · 28th November 2010, 20:50

Will it damage engine much if left?

**vectrahunter** · 28th November 2010, 23:19

mines the same m8 remember the air temp is much lower than normal
turn off your heater and it will quickly rise above 80

**barney490** · 28th November 2010, 23:50

Originally Posted by skip85

Will it damage engine much if left?

Nope, won't harm the engine, fuel economy might suffer as engine not getting to temp, but tbh they ain't that bad to change, a little bit more fiddly on 120 models.

**kamar** · 28th November 2010, 23:54

mines usually around there but i put it to weather if i gave it a few gears it will reach 90 no probs..

i drove from work last night it was -7 an the temp didnt move it was an 8 mile journey mostly up hill... but it blows warm air after afew mins...

**skip85** · 29th November 2010, 10:21

Ok I'll try turning heater down and see what happens. Is there a how2 for changing stat and how much does anyone know?

**Homer** · 29th November 2010, 13:26

Mine is seriously struggling to get above 80c now... I have to drive it hard to get it there. If you have the heaters on anything above fan 1 then no hope!

Stat stuck open?! Or is this just a very cool running engine?! Late 2008 CDTi 150...

**andreitone** · 29th November 2010, 19:28

I've changed the thermostat about a year ago for the same reasons, temp guage was below 80 deg most of the time, and was very good (around 88 deg) until about 1 month ago when it started to drop at around 80 again... are they only supposed to last for 12 months?! does anyone know of a good thermostat manufacturer/brand?