I notice that every time I start the engine the rpm raised on 980 and hold it for about 10-15 minutes.  At the summer when was AC turned on it hold it even longer. But i do not know if is this right to hold it on 980 rpm at idle or not?

On skoda service the mechanic says it working regeneration. But evrey time i start the car? Dpf and agr no faulty. But one other mechanic say this is not regeneration. Any one have this like working engine and solve it if this is the problem?

Edited 23 February, 20188 yr by Vene

19 hours ago, Vene said:

I notice that every time I start the engine the rpm raised on 980 and hold it for about 10-15 minutes.  At the summer when was AC turned on it hold it even longer. But i do not know if is this right to hold it on 980 rpm at idle or not?

On skoda service the mechanic says it working regeneration. But evrey time i start the car? Dpf and agr no faulty. But one other mechanic say this is not regeneration. Any one have this like working engine and solve it if this is the problem?

Admittedly a different engine (2.0 140 BHP TDi) but the diesel in my Yeti tends to run at fast idle (~1000 rpm) when there is a high demand on the alternator, or if it's not yet fully warmed up - looking at the Maxidot the coolant temperature is up to a (displayed) 90 degrees within a few miles, but the oil temperature can take >20 miles to reach equilibrium, (longer in the recent cold weather).

 

I've also seen a fast idle when the weather is hot and there is high demand from the AC - on this basis I'd say the behavior of your car is (probably) within normal operating parameters.

Yes but i have car parked in garage there is never belov 0°C and it is very strange to me every time not only at winter  every time weather, when turn on the engine it runs idle at 980 rpm. this is strange to me. ok when it is parked outside on ~-10 or less, when i run it the engine slowly rise to 1200rpm and then drop again to 980rpm.

And even if i have AC turned on or off it goes the same. I have check the battery but it seem ok.