PD140 idle, temperature drop?

Pheo

Active Member
Sep 11, 2009
275
0
Hi all,

having driven at 30mph speeds for 15 minutes, would you expect the engine temp to drop from 90c if you sat there idling with the engine on?

Maybe you would as it's diesel?
 

Pheo

Active Member
Sep 11, 2009
275
0
It dropped from 90c to 80c, before I decided to turn the engine off because it was dropping. Although not visibly moving, the needle was dropping at a noticable speed.

I'll experiment some more when I get the chance.
 

muddyboots

Still hanging around
Oct 16, 2002
5,739
1
Well given that TDIs never warm up when you leave them idling on a winter's morning, then it wouldn't surprise me....

I guess it will also depend on how much heat you're taking out of the coolant by using the heater inside the car.
 

Pheo

Active Member
Sep 11, 2009
275
0
Well given that TDIs never warm up when you leave them idling on a winter's morning, then it wouldn't surprise me....

I guess it will also depend on how much heat you're taking out of the coolant by using the heater inside the car.

Thats what I'm now thinking!

I'll keep an eye and see if it does anything odd!
 
Jul 13, 2009
504
1
Hereford
I have this too, spoken to a few people, i work for bmw and bmw have to put an auxiliary heater in the heater box because the diesel engines are to efficient and they will cool down on idle so there is nothing wrong with your car, spoken to seat and they said the same thing
 
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