Rapid temperature rise from cold

[LambethBoy]

This might seem like a bit of a strange one, but is there anything that would cause the temperature to rise quickly on a 204? All fluids are where they should be. Went from a freezing cold van as the temperatures have dropped to only driving about half a mile and the temperature was up to its normal range which seems far too quick for me.
As I normally used to having to go further before that happens.
Any ideas?

 

[Higgidav]

Longshot but have you checked your antifreeze levels? I once had the same on a mini and found the water was frozen in the radiator. It’s been extremely cold this week.

 

[david173]

do you have an auxiliary coolant heater? should be sticker on the drivers door inset if you have?

 

[Deaky]

This might seem like a bit of a strange one, but is there anything that would cause the temperature to rise quickly on a 204? All fluids are where they should be. Went from a freezing cold van as the temperatures have dropped to only driving about half a mile and the temperature was up to its normal range which seems far too quick for me.
As I normally used to having to go further before that happens.
Any ideas?

It's caused by Regen

 

[Dellmassive]

as above, and. . . .


valves and circulation pumps keep the coolant in the engine block until its up to temp.

three stages:

cold running
warm up
operating temp





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SSP 455 - 2.0 Litre TDI Engines in the T5 2010

VW Self Study Programme, Document 455 - 2.0 Litre TDI Engines in the Volkswagen T5 2010 With the T5 2010, Volkswagen Commercial Vehicles is taking a new path in engine strategy. The tried-and-tested 1.9l and 2.5l pump/nozzle engines used...

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[LambethBoy]

Longshot but have you checked your antifreeze levels? I once had the same on a mini and found the water was frozen in the radiator. It’s been extremely cold this week.

Yep all good

It's caused by Regen

That quick buddy? Was only out 5 minutes.

as above, and. . . .


valves and circulation pumps keep the coolant in the engine block until its up to temp.

three stages:

cold running
warm up
operating temp


View attachment 226108View attachment 226109View attachment 226110


.

SSP 455 - 2.0 Litre TDI Engines in the T5 2010

VW Self Study Programme, Document 455 - 2.0 Litre TDI Engines in the Volkswagen T5 2010 With the T5 2010, Volkswagen Commercial Vehicles is taking a new path in engine strategy. The tried-and-tested 1.9l and 2.5l pump/nozzle engines used...

www.t6forum.com

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I’ll look at that.
But you know when you know your van well and just think… that was quicker than normal?

 

[Dellmassive]

Keep an eye on coolant levels.

Keep us posted.

 

[Deaky]

That quick buddy? Was only out 5 minutes.

Yep, I remember mine doing it. I nearly turned round and went home. It was up to temp within a couple of streets

 

[mmi]

Was only out 5 minutes.

Didn't finish off DPF regen last night so it restarted immediately in the morning - and it's fairly quick even in current temperatures up here. At about 4 minutes even the DPF is up to temp to start burn off the soot. Probably could have made it even a bit faster without a long downhill (foot off the throttle) at 150...180 seconds.

 

[LambethBoy]

Didn't finish off DPF regen last night so it restarted immediately in the morning - and it's fairly quick even in current temperatures up here. At about 4 minutes even the DPF is up to temp to start burn off the soot. Probably could have made it even a bit faster without a long downhill (foot off the throttle) at 150...180 seconds.

View attachment 226163

Ahh. Now this makes sense.
Today coming up to temperature from cold was normal.
Thank you @mmi