Faulty External Temperature Reading.

[petethegreek]

Does anybody have any idea why the external temperature reading of my Highline 150 would be fluctuating between 18 degree and minus 42.5. Its only just started happening over the last week.
I had it in for some warranty work after engine management light came on and they replaced the EGR coolant pump.
Would this have any effect on anything else?
Thanks.

 

[petethegreek]

Also just realised the air con won’t work, I’m thinking this is to do with gauge showing -2.

 

[Pauly]

It’s strange to see a weird reading, if you unplug the sensor it shows no temp display so the fact it’s reading so far out shows it must be getting some signal back
The sensor is located behind the front grill if you bend down and look up through the slats you can see it, I think (and it’s only think) that if you open the bonnet and take out the four plastic fixings along the top (one screw and three plastic poppers) you can pull the top of the grille forwards and may be able to get your hand down to it and check it’s plugged in properly and there’s no sign of water ingress other than that I think it would be a dealer/warranty job

 

[petethegreek]

It’s strange to see a weird reading, if you unplug the sensor it shows no temp display so the fact it’s reading so far out shows it must be getting some signal back
The sensor is located behind the front grill if you bend down and look up through the slats you can see it, I think (and it’s only think) that if you open the bonnet and take out the four plastic fixings along the top (one screw and three plastic poppers) you can pull the top of the grille forwards and may be able to get your hand down to it and check it’s plugged in properly and there’s no sign of water ingress other than that I think it would be a dealer/warranty job

Thanks for that Pauly think I’ll book it in to the dealer, another day without the van.

 

[Ashok2429]

Thanks for that Pauly think I’ll book it in to the dealer, another day without the van.

Reigniting this post as I’ve got same issue on my T6, doesn’t fluctuate quite as much as yours did but driving in the rain today and dropped to -8 then back up to +15 once back in the sunshine.

Did the dealer rectify yours in the end?

 

[petethegreek]

They fitted a new sonsor and all was good after.

 

[Ashok2429]

Cheers for the quick reply, back to the dealer it is!