|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Search | Today's Posts | Mark Forums Read |
|
BMW 3-Series (E90 E92) Forum
>
Windscreen defrost heater ? electric
|
|
01-17-2013, 06:56 AM | #23 |
Captain
282
Rep 707
Posts |
Do you think the heat is supplied by something called:
Description: Auxiliary heater Part number: 64119175923 Seems to be fitted to mine (according to realoem) but also to the E90.
__________________
Current: 2016 Golf GTD with a "lot" of toys
Gone: 2016 M3 CP - Mineral Grey / Black Gone: 2009 135i - Le Mans Blue / Black |
Appreciate
0
|
01-17-2013, 07:00 AM | #24 |
Major General
1394
Rep 8,081
Posts |
The heater (ordinarily) will not work without the engine on to provide enough current. Is he proposing to disable all the energy-monitoring stuff? Sounds like a recipe for disaster - if it were easy to do then BMW would do it along side the preconditioning timer.
__________________
Ian
Current: 2021 G21 330i M-Sport Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2 |
Appreciate
0
|
01-17-2013, 07:01 AM | #25 | |
Major General
1394
Rep 8,081
Posts |
Quote:
535i
__________________
Ian
Current: 2021 G21 330i M-Sport Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2 |
|
Appreciate
0
|
01-17-2013, 07:24 AM | #26 | |
Major
40
Rep 1,021
Posts
Drives: F11 530d M-Sport
Join Date: Aug 2011
Location: Huntingdon, UK
|
Quote:
I guess we'll find out eh!
__________________
MY14 Space Grey F11 530d M-Sport
|
|
Appreciate
0
|
01-17-2013, 07:35 AM | #27 |
Major General
1394
Rep 8,081
Posts |
Perhaps but what I'm saying is as standard you can set the fans to come on at a certain time so if it was not detrimental to also have the electric heater on then BMW would have given the function as it would be very useful. I suspect though that to get any decent heat the heater will need to be 250W if not more, which would draw 20A. On a cold day that would kill the battery pretty quickly so there is a good reason why BMW deny this functionality. You might be able to code it out but is there any point getting to a defrosted car that won't start?
__________________
Ian
Current: 2021 G21 330i M-Sport Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2 |
Appreciate
0
|
01-17-2013, 07:59 AM | #28 |
Major
40
Rep 1,021
Posts
Drives: F11 530d M-Sport
Join Date: Aug 2011
Location: Huntingdon, UK
|
I agree. When I first try it, assuming it works, I'm going to have to monitor battery draw.
The timed fan thing is only standard on idrive cars though isn't it? I think this coding might just add this function to non idrive cars?
__________________
MY14 Space Grey F11 530d M-Sport
|
Appreciate
0
|
01-17-2013, 08:03 AM | #29 |
Major General
1394
Rep 8,081
Posts |
I had the pre-condition timer on my NON iDrive e92 and it's on my wife's NON iDrive E87 too (I think)
__________________
Ian
Current: 2021 G21 330i M-Sport Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2 |
Appreciate
0
|
01-17-2013, 08:19 AM | #30 | ||
Lieutenant General
6659
Rep 15,858
Posts |
Quote:
Quote:
So like you, I can't see any way it can be coded without messing with the energy management bigtime. HighlandPete |
||
Appreciate
0
|
01-17-2013, 08:20 AM | #31 |
Major
40
Rep 1,021
Posts
Drives: F11 530d M-Sport
Join Date: Aug 2011
Location: Huntingdon, UK
|
Is it the same as the guys talks about on that link? So you end up with a menu called parking, beside BC, info, config, tel on the head unit?
__________________
MY14 Space Grey F11 530d M-Sport
|
Appreciate
0
|
01-17-2013, 08:30 AM | #32 |
Major General
1394
Rep 8,081
Posts |
Mine had a picture of a fan - when you selected that you entered the time you wanted the fan to come on.
__________________
Ian
Current: 2021 G21 330i M-Sport Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2 |
Appreciate
0
|
01-17-2013, 08:33 AM | #33 |
Lieutenant General
6659
Rep 15,858
Posts |
I'll add another comment about the amount of heat we need to warm a car.
I've used an electric fan heater (for many years) to thaw out my cars on frosty days. I run a 2kW heater and it takes about 30 minutes to thaw all windows and put a reasonable amount of warmth in the cabin. That's at around -2C ... in a 3-series touring. It uses a Kilowatt's worth of energy to do the job! Get it any colder and that increases dramatically. 5-series touring takes another 15 minutes to do a similar job as in the 3-series. So any idea a small amount of battery drain, say 'one chain' in the PTC element will do much good, over a short amount of time, forget it as a serious way to preheat the car. You can see why BMW doesn't even entertain using the PTC element as a pre-heater. You need the diesel fuelled pre-heater to do a fast job, as they can give out a few kilowatts quite fast. But as said, not an option on the UK 3-series models. HighlandPete |
Appreciate
0
|
01-17-2013, 08:40 AM | #34 | |
Lieutenant General
6659
Rep 15,858
Posts |
Quote:
HighlandPete |
|
Appreciate
0
|
01-17-2013, 08:44 AM | #35 |
Major General
1394
Rep 8,081
Posts |
But the heater is still useful to demist windows quickly once you have the engine running. It would be unfeasible to expect it to noticeably "warm" the car though.
__________________
Ian
Current: 2021 G21 330i M-Sport Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2 |
Appreciate
0
|
01-17-2013, 08:56 AM | #36 | |
Lieutenant General
6659
Rep 15,858
Posts |
Quote:
I noted on my 3-series that some winter cold starts there was definitely restrictions on the electrical system, rear screen demister and/or the auxiliary element would be clocked, it was a sign my car needed the battery on a trickle charge. I'm not talking of an old battery either, noticed the function when the car was relatively new. Shows how close we can sail to the wind on electrical demands during the winter months. HighlandPete |
|
Appreciate
0
|
01-17-2013, 09:00 AM | #37 | |
Captain
282
Rep 707
Posts |
Quote:
Nice discussion, mind.
__________________
Current: 2016 Golf GTD with a "lot" of toys
Gone: 2016 M3 CP - Mineral Grey / Black Gone: 2009 135i - Le Mans Blue / Black |
|
Appreciate
0
|
01-17-2013, 09:00 AM | #38 |
Major General
1394
Rep 8,081
Posts |
Remote start is the answer - shame it's not legal here. I used to use it in the US when it was cold (or indeed hot, with A/C). Start the engine from inside the house without unlocking the car.
__________________
Ian
Current: 2021 G21 330i M-Sport Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2 |
Appreciate
0
|
01-17-2013, 12:42 PM | #39 | |
Major
40
Rep 1,021
Posts
Drives: F11 530d M-Sport
Join Date: Aug 2011
Location: Huntingdon, UK
|
Quote:
Not sure exactly how it works. I gave it a try and it just seems to blow forward when the time comes. Any idea how to set it up to blow towards the screen? Even if it's not heated, it;s better than nothing I guess. Mind you, the guy over at babybmw reckons it comes through warm. Maybe the car knows that the engine isn't running and just supplies enough juice to the heater to take the chill off? It's pretty smart after all! I'll find out tomorrow morning I guess.
__________________
MY14 Space Grey F11 530d M-Sport
|
|
Appreciate
0
|
01-18-2013, 05:17 AM | #40 |
Lieutenant General
6659
Rep 15,858
Posts |
|
Appreciate
0
|
Bookmarks |
Thread Tools | Search this Thread |
|
|