Hi, I have a weird problem with my VRS Diesel Estate. I noticed the engine not getting as warm sometimes, this was after a Remap a year ago. This winter it has been struggling to reach running temp. I replaced the thermostat last week. It was busted open. Still have the fault though.

So I spent most of today with the engine running.

If the cabin heaters are off the engine gets to running temp fine. If I turn the cabin heater contol on even 1 bar, both raditor fans come on immediately and the engine temp drops.

i've messaged the remap guy but i'm struggling to work out why this is happening. Coolant level is normal and was replaced last Oct.

Is it AC related maybe?

 

2 hours ago, Wynjones68 said:

Is it AC related maybe?

 Have you tried it with the AC off?

 

Some cars turn the fans on when you turn the AC on.

 

Is the water temperature sensor working correctly?

 

Can you see live data via the OBD port on the water temperature?

 

 

Thanks. AG Falco

 

 

The AC comes on when i select a lower temp like 16. I just wondered if it was a regas issue, or if they were related in some way. It gets cold enough.

Water temp sensor works fine, Ive checked with an IR sensor.

I'll need tofind someone with a reader i think.

Thanks for your help.

Wyn

DSG transmission?

No, Its a stock VRS diesel estate with St1 Remap. 57 Plate