HUD or heated windscreen - Page 20

Cull06 · Nov 2nd, 2020, 09:17

Snoodini out of interest how long do you have to have preconditioning on for as a minimum to come outside to a defrosted car?

I assume you have a T8...?

Snoodini · Nov 2nd, 2020, 12:11

Quote:

Originally Posted by Cull06

Snoodini out of interest how long do you have to have preconditioning on for as a minimum to come outside to a defrosted car?

I assume you have a T8...?

You assume correct but probably for the wrong reasons. The fuel fired heater is available as an option on all models and specs in Sweden, I know this is not the case in the UK.

15-20 minutes is usually good enough however at home I have a carport so it's never snow or ice covered when parked at home. Preconditioning for 10 minutes starts to make an appreciable difference to the interior climate when it's say -10 outside.

Philip Fisher · Nov 2nd, 2020, 13:19

@Snoodini - were these PTC heaters ever fitted as standard in the UK market? I have had a few Volvos over the past 10-15 years and have seen no evidence of one working.

What intrigues me is the current draw of this PTC heater. At 1250w it will be circa 100amps. If this thing runs on a cold morning start up along with the fan motor; wipers; heated seats; lights; heated rear window etc.... then the total current draw must be nearly 250amps. I thought that most alternators, even heavy duty ones, were only circa 180 to 200 Ah?

Philip Fisher · Nov 2nd, 2020, 13:21

Quote:

Originally Posted by Cull06

Snoodini out of interest how long do you have to have preconditioning on for as a minimum to come outside to a defrosted car?

I assume you have a T8...?

Is it ever frosty in Swansea? I thought it was permanently 10c and raining! (I used to live near Newport btw)

Cull06 · Nov 2nd, 2020, 13:43

Lol! Yeah you’re right maybe a handful of times in the depths of winter will we wake up with frost! Don’t ever see snow these days either...

Clan · Nov 2nd, 2020, 14:34

Quote:

Originally Posted by Philip Fisher

@Snoodini - were these PTC heaters ever fitted as standard in the UK market? I have had a few Volvos over the past 10-15 years and have seen no evidence of one working.

What intrigues me is the current draw of this PTC heater. At 1250w it will be circa 100amps. If this thing runs on a cold morning start up along with the fan motor; wipers; heated seats; lights; heated rear window etc.... then the total current draw must be nearly 250amps. I thought that most alternators, even heavy duty ones, were only circa 180 to 200 Ah?

They are controlled with a PWM signal so never on fully , they get short bursts of full power which last milliseconds each .. also as soon as they get warm the resistance increases so current drops off , I would imagine 1200w is when -30 C outside for example for very short time ! the wires feeding is are certainly thick though .

Cull06 · Nov 27th, 2020, 10:50

My last car had heated screen but this one came with HUD (did not know it was choice tbh.

Anyway first frost of the year today. 6 mins before going outside I put on the preconditioning and by the time I was outside the car was warm and steam was coming off the windscreen.

So no need for heated windscreen with an aux heater. Glad I have the HUD option now!

senwar · Nov 28th, 2020, 16:01

Picked my new Rdesign pro up this morning. Specced with heating screen

Delivered with HUD! Er.

I've noticed the car has a parking climate option which my XC40 didn't. Now I've read into all this before and didn't think this worked as you need a Fuel-Fired Heater with Pre-Conditioning Functions? However, according to the xc60 features page for UK versions, it shows as the XC60 does have it (auxiliary heater)? Is that correct?

https://www.volvocars.com/uk/cars/ne...?redirect=true

I'm in discussions with the dealer - but this may be a big help?

nu11eaf · Nov 29th, 2020, 17:03

Quote:

Originally Posted by senwar

Picked my new Rdesign pro up this morning. Specced with heating screen

Delivered with HUD! Er.

I've noticed the car has a parking climate option which my XC40 didn't. Now I've read into all this before and didn't think this worked as you need a Fuel-Fired Heater with Pre-Conditioning Functions? However, according to the xc60 features page for UK versions, it shows as the XC60 does have it (auxiliary heater)? Is that correct?

https://www.volvocars.com/uk/cars/ne...?redirect=true

I'm in discussions with the dealer - but this may be a big help?

Thats a full list of features you can have on the model not will have, depends on the variant and options you choose.

senwar · Nov 29th, 2020, 17:25

Quote:

Originally Posted by nu11eaf

Thats a full list of features you can have on the model not will have, depends on the variant and options you choose.

Ah of course, hadn't thought of that.

I've sussed the car doesn't have the facility though - as has been covered on here before anyway. Was hopeful it may be an addition for MY21.

Oh well - have to say a day with HUD - yeah its very good!

View Poll Results: Which option would you sekect
HUD	205	46.91%
Heated windscreen	232	53.09%
Voters: 437. You may not vote on this poll

Nov 2nd, 2020, 09:17	#191
Cull06 Master Member Last Online: Apr 16th, 2024 18:31 Join Date: Dec 2019 Location: -	Snoodini out of interest how long do you have to have preconditioning on for as a minimum to come outside to a defrosted car? I assume you have a T8...? __________________ Polestar Engineered XC60 (MY20)

Nov 2nd, 2020, 13:19	#193
Philip Fisher Premier Member Last Online: Today 13:33 Join Date: Dec 2002 Location: Sheffield	@Snoodini - were these PTC heaters ever fitted as standard in the UK market? I have had a few Volvos over the past 10-15 years and have seen no evidence of one working. What intrigues me is the current draw of this PTC heater. At 1250w it will be circa 100amps. If this thing runs on a cold morning start up along with the fan motor; wipers; heated seats; lights; heated rear window etc.... then the total current draw must be nearly 250amps. I thought that most alternators, even heavy duty ones, were only circa 180 to 200 Ah? __________________ Currently:- MY16 XC90 T8 Momentum, Magic Blue 174k miles. MY17 V60 T4 Power Blue. Previously:- 1997 V70 T5 exPolice; 2005 V50 2.0D; 2013 XC70 D5

Nov 2nd, 2020, 13:43	#195
Cull06 Master Member Last Online: Apr 16th, 2024 18:31 Join Date: Dec 2019 Location: -	Lol! Yeah you’re right maybe a handful of times in the depths of winter will we wake up with frost! Don’t ever see snow these days either... __________________ Polestar Engineered XC60 (MY20)

Nov 27th, 2020, 10:50	#197
Cull06 Master Member Last Online: Apr 16th, 2024 18:31 Join Date: Dec 2019 Location: -	My last car had heated screen but this one came with HUD (did not know it was choice tbh. Anyway first frost of the year today. 6 mins before going outside I put on the preconditioning and by the time I was outside the car was warm and steam was coming off the windscreen. So no need for heated windscreen with an aux heater. Glad I have the HUD option now! __________________ Polestar Engineered XC60 (MY20)

Nov 28th, 2020, 16:01	#198
senwar Junior Member Last Online: Sep 1st, 2023 08:12 Join Date: Jan 2018 Location: Sheffield	Picked my new Rdesign pro up this morning. Specced with heating screen Delivered with HUD! Er. I've noticed the car has a parking climate option which my XC40 didn't. Now I've read into all this before and didn't think this worked as you need a Fuel-Fired Heater with Pre-Conditioning Functions? However, according to the xc60 features page for UK versions, it shows as the XC60 does have it (auxiliary heater)? Is that correct? https://www.volvocars.com/uk/cars/ne...?redirect=true I'm in discussions with the dealer - but this may be a big help? Last edited by senwar; Nov 28th, 2020 at 16:08.

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