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7 Series - F01 / F02 (2009 - current)
The new re-designed 7 series F01 / F02 leads off the BMW Fxx chassis code!

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  #1  
Old 04-15-2013, 11:35 AM
chrischeung chrischeung is online now
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Ventilated Seats - how to use them for the best benefit?

I've had my car for almost a year, and have just found out a different way to use the ventilated seats, that I've never seen mentioned. I've often found their benefit lacking, even on the highest setting, and sometimes can't even tell if they are on. However, today inadvertently, I pulled my back slightly off the seat, and the cooling effect was dramatically better. By having that small air layer between shirt and seat, it allowed a lot more air to flow down between the shirt and seat. It makes logical sense - if you're back is against the seat, there is a limit to where air can flow down. It's just that I've never read about this being a recommendation.

Naturally it's a little strange to drive with your back slightly off the seat, and it's best done when the car is stationary. Does anyone have any thoughts about this approach? Has it made a lot of difference to you?
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  #2  
Old 04-15-2013, 03:42 PM
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Hi Chris, that's a great recommendation, I usually have my seat conformed to my back, and I can feel the cooling for a few seconds and then it just seems to go away. I have also found the system cuts down the cooling function from 3 bars to 2 bars automatically, could be another reason for the reduction in air flow,V/r, Tim
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Old 04-15-2013, 04:18 PM
dbs600 dbs600 is offline
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Yes, I've noticed same too; best when the top half of multi-contour seats are at their max articulation...
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Old 04-16-2013, 08:01 PM
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I tried your theory out Chris, works great, just a tad uncomfortable as my abs aren't exactly Arnold Schwarzenegger status!
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Old 04-16-2013, 11:33 PM
AdamG13 AdamG13 is offline
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These ventilated seats are so weak. I like how it automatically changes from Level 3 to Level 2 after a set amount of time so that you don't get too cold, as if that's even possible. I'd say they're about half as effective as those on the E65.
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Old 04-17-2013, 05:46 AM
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this is good to hear - I thought mine were malfunctioning. now that temps are rising on the east coast, there must be a better way.

I have heard that the seats cannot cool to a temp lower than what the cabin temp is set to

Also, you can have seats coded to a slightly cooler temperature, and I believe you cannot change duration of fan setting level 3....it's too quick

our Denali will freeze you out of the font seats when cool is on. wish these did the same
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Old 04-18-2013, 10:26 PM
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I've noticed it makes your farts smell quicker!!
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Old 05-12-2013, 11:28 AM
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I can code the seats to function at a lower temp. (they work in conjunction with the A/C). Contact me if interested.
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Old 05-12-2013, 07:49 PM
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You can code to make the air coming out of the seats colder?
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Old 05-12-2013, 07:58 PM
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I can code to make the ventilation positions (3-2-1 lights on) correspond to a cooler temp.
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Old 05-12-2013, 08:30 PM
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yes you can code it to a colder temp BUT it doesn't really help, the issue is that when sitting the air flow is being blocked by our body and the (no)strength of the fan is not helping.
i coded mine myself, there is a thread about it on how to and its great when you turn it on for a bit before actually sitting inside the car
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Old 05-12-2013, 08:52 PM
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Yes, that's best and then having them is much better than not. The one option I regret I didn't get + I love the look of the seats with perforated leather.


When it comes the air flow being impeded by our body, is the implementation any better in cars from other makes?
I understand fans in BMW < Lexus/ MB, true?

In summer, without the ventilated seats, you could be perfectly comfortable in the cabin with the A/C set at, say 69, but still have a moist/ sweaty back because there is no air circulation there.

Having the ventilated seats (coded or not) allows for a lower temp between the body and the seat just enough not to sweat.
Could you better but it's enough for me.

Last edited by octopump; 05-12-2013 at 09:03 PM.
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Old 05-12-2013, 08:53 PM
dbs600 dbs600 is offline
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Quote:
Originally Posted by coco135 View Post
i coded mine myself, there is a thread about it on how to
Can you please post a link to the thread? Thanks!
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Old 05-12-2013, 09:06 PM
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Quote:
Originally Posted by dbs600 View Post
Can you please post a link to the thread? Thanks!
http://www.bimmerfest.com/forums/sho...d.php?t=682664

Read down a bit. The 7 may have slightly different identification of the codes. See near bottom of thread.
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Old 05-12-2013, 09:25 PM
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Have a look here: http://www.bimmerfest.com/forums/sho...d.php?t=682664


Edit:

Raj - you beat me to it.

coco135 - you mentioned this makes no difference for you.

Raj - have you coded this to your car? Do you notice an improvement?

Last edited by octopump; 05-12-2013 at 09:27 PM.
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  #16  
Old 05-12-2013, 09:41 PM
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Quote:
Originally Posted by octopump View Post
Have a look here: http://www.bimmerfest.com/forums/sho...d.php?t=682664


Edit:

Raj - you beat me to it.

coco135 - you mentioned this makes no difference for you.

Raj - have you coded this to your car? Do you notice an improvement?
Have not tried that one yet. May code it tonight if I get a chance.
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Old 05-12-2013, 09:41 PM
dbs600 dbs600 is offline
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Thanks, Gentlemen; keep up the good work!
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  #18  
Old 05-12-2013, 10:11 PM
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Since you need to put your temp values in hex decimal format. Here is a chart to make to conversion easy for you.

http://www.dewassoc.com/support/msdo...exadecimal.htm
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Old 05-12-2013, 11:00 PM
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Quote:
Originally Posted by octopump View Post
Have a look here: http://www.bimmerfest.com/forums/sho...d.php?t=682664


Edit:

Raj - you beat me to it.

coco135 - you mentioned this makes no difference for you.

Raj - have you coded this to your car? Do you notice an improvement?

no, i said once you seating for some time its still not as affective as others like lexus. but if you let it cool for few minutes before you take a seat. it gets freezing! i set it to 16 Celsius

Last edited by coco135; 05-12-2013 at 11:01 PM.
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Old 05-12-2013, 11:15 PM
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What is Nexus doing BMW isn't?
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  #21  
Old 05-13-2013, 10:46 AM
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Quote:
Originally Posted by octopump View Post
What is Nexus doing BMW isn't?
Nexus is mostly relates to Android phones. but Lexus have stronger direct multiple vents to the seats
Where bmw put a computer cooling fan like and its not direct but a very wide single output
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Old 05-13-2013, 12:03 PM
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I was typing on my phone - auto correct...


Good to know. BMW needs to improve its design then. I still think the option is worth getting.

Last edited by octopump; 05-13-2013 at 12:04 PM.
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  #23  
Old 05-13-2013, 12:13 PM
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Coded mine last night. Feels a bit better. Placebo effect? Will never know.
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Old 05-13-2013, 12:26 PM
chrischeung chrischeung is online now
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I'm also noticing another thing. The leather around the left side of my buttocks is starting to wrinkle. I think it's because of the holes making the leather less durable. I'm going to apply more conditioner to that part, in addition to the bolsters which I have been doing.
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3/12 ED 7 - thread ID 610350
1/11 ED 6 - thread ID 5767556&postcount=175
4/10 ED 5 - thread ID 453501
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3/07 ED 3 - thread ID 201013
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Old 05-13-2013, 12:54 PM
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Here is exactly where I found the settings in the 2009 F01 as Coco noted. Different than the F10 for those who get frustrating looking for them.

Front Active Seat Ventilation (Cooling):


Front driver seat cushions:

SM [6d]->3002, Sonderausstattung, 2F->Funktionen->KL_T_SOLL_L1
SM [6d]->3002, Sonderausstattung, 2F->Funktionen->KL_T_SOLL_L2
SM [6d]->3002, Sonderausstattung, 2F->Funktionen->KL_T_SOLL_L3

Front driver seat back:

SM [6d]->3002, Sonderausstattung, 2F->Funktionen->KL_T_SOLL_K1
SM [6d]->3002, Sonderausstattung, 2F->Funktionen->KL_T_SOLL_K2
SM [6d]->3002, Sonderausstattung, 2F->Funktionen->KL_T_SOLL_K3

Changed mine to the following settings also:
19(25deg C)
14(20deg C)
10(16deg C)
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Mods: BMS n63tu Tune, PedalBox, H&R Sport Springs, RD Sport Front Lip, Rear Roof & Trunk Spoilers, 20" Forgestar F14 Rims, Akebono Ceramic Brakes, 20% Front/15% Rear Tint, Carbon Fiber Wrap, Smoked Taillights, 760 Exhaust Tips, "Golf Tee" mod, Kidney Grills & Front Vents Painted Gloss Black, Brake Calipers Gloss Black w/BMW Logos, B&W Carbon Fiber Roundels.

Last edited by rajeek; 05-15-2013 at 04:22 PM.
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