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Post by Yeti on Dec 24, 2017 10:42:31 GMT
I have realised for some reason my drivers side seat doesn’t heat up as much as the passenger one
And that the back gets warmer then the bottom area
Is there an option to change the temp at each selectable stage
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Post by dv52 (Australia) on Dec 24, 2017 21:54:42 GMT
yeti: Yes, all the threshold levels for the seat temperatures are in the central electrics module @ address hex09. Like this:
Seat heater level current consumption allocation:
Sitzheizung Stufe 1 untere Schaltschwelle:
21.50 °C
Sitzheizung Stufe 1 obere Schaltschwelle:
22.50 °C
Sitzheizung Stufe 2 untere Schaltschwelle:
21.50 °C
Sitzheizung Stufe 2 obere Schaltschwelle:
22.50 °C
Sitzheizung Stufe 3 untere Schaltschwelle:
35.00 °C
Sitzheizung Stufe 3 obere Schaltschwelle:
36.00 °C
Sitzheizung Stufe 4 untere Schaltschwelle:
35.00 °C
Sitzheizung Stufe 4 obere Schaltschwelle:
36.00 °C
Sitzheizung Stufe 5 untere Schaltschwelle:
52.50 °C
Sitzheizung Stufe 5 obere Schaltschwelle:
53.50 °C
Sitzheizung Stufe 6 untere Schaltschwelle:
52.50 °C
Sitzheizung Stufe 6 obere Schaltschwelle:
53.50 °C
Don
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Post by zero815 on Dec 26, 2017 20:01:39 GMT
Yeti, Since I drove a BMW 750i some years ago I always wanted to have the ability to change the temperature between seat and back. I like the back to be warmer. As Don also mentioned, one day I saw the seat heater level current control in my obdeleven and just changed the temperatures. What can I say, I like it much better so.  |
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Post by Yeti on Dec 29, 2017 21:50:46 GMT
Are the options for drivers and passenger side different
Also why are the so many stages as there are only 3 stages on the Car settings?
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nype
New Member
Posts: 19
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Post by nype on Dec 29, 2017 22:38:44 GMT
Are the options for drivers and passenger side different Also why are the so many stages as there are only 3 stages on the Car settings? Level 1 - Seat cushion - Min threshold Level 1 - Seat cushion - Max threshold Level 1 - Back cushion - Min threshold Level 1 - Back cushion - Max threshold Level 2 - Seat cushion - Min threshold Level 2 - Seat cushion - Max threshold And so on... No separate settings for driver vs passenger. |
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Post by Yeti on Dec 30, 2017 11:34:41 GMT
Thanks
But should it not just go to level 3 only
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Post by zero815 on Dec 30, 2017 15:52:04 GMT
Stufe 1 Seat & Stufe 2 Back = Level 1 on your button.
Stufe 3 Seat & Stufe 4 Back = Level 2 on your button.
Stufe 5 Seat & Stufe 6 Back = Level 3 on your button.
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Post by importrx7 on Jan 1, 2018 9:42:58 GMT
Seat heating level 1 lower threshold:
21.50 ° C
Seat heating level 1 upper threshold:
22.50 ° C
Seat heating level 2 lower threshold:
21.50 ° C
Seat heating level 2 upper threshold:
22.50 ° C
Seat heating level 3 lower threshold:
35.00 ° C
Seat heating level 3 upper threshold:
36.00 ° C
Seat heating level 4 lower threshold:
35.00 ° C
Seat heating level 4 upper threshold:
36.00 ° C
Seat heating level 5 lower threshold:
52.50 ° C
Seat heating level 5 upper threshold:
53.50 ° C
Seat heating level 6 lower threshold:
52.50 ° C
Seat heating level 6 upper threshold:
53.50 ° C
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Tristan
New Member
2019 VW GLI DSG
Posts: 36
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Post by Tristan on Feb 9, 2021 20:29:32 GMT
Hi all,
So, to increase the threshold range, do you simply type in/replace each lower/upper threshold with higher numbers? Is it basically trial-and-error until you get to a point where you feel it gets hot enough to suit your taste? Is there any maximum?
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Post by jongl33t on Oct 13, 2021 2:14:26 GMT
I made the changes described on this thread and cannot get the heat to turn down on the seat portion.
Pasting my log below. Someone help! My back will appreciate it!
OBDeleven vehicle history log
Date: 2021-10-12 09:38:07
VIN: 3VW5T7AU6HM066825
Car:
Year: 2017
Body type: D5 Hatchback
Engine: CXCA kW ( hp) l
Mileage: 57809 mi
---------------------------------------------------------------
09 Central Electrics
System description: BCM PQ37BOSCH
Software number: 5Q0937087AN
Software version: 0223
Hardware number: 5Q0937087AN
Hardware version: 032
Faults:
B12CA01 - License plate lamp
Electrical error
static
---------------------------------------------------------------
Adaptation
Control unit: 09 Central Electrics
Name: Seat Heating Level Adaptation
Values:
Sitzheizung Stufe 5 untere Schaltschwelle:
Old value: 21.50
New value: 10.50
Sitzheizung Stufe 5 obere Schaltschwelle:
Old value: 22.50
New value: 12.50
Mileage: 57487 mi
Date: 2021-10-01 16:32:22
---------------------------------------------------------------
09 Central Electrics
System description: BCM PQ37BOSCH
Software number: 5Q0937087AN
Software version: 0223
Hardware number: 5Q0937087AN
Hardware version: 032
Faults:
B12CA01 - License plate lamp
Electrical error
static
Priority - 2
Malfunction frequency counter - 1
Unlearning counter - 123
km-Mileage - 92478 km
Terminal 15 status - On
Terminal 50 status - Off
Voltage - 11.8 V
Outside air temperature - 19.5 °C
Status Bremslichtschalter (HW) - Off
Status Bremslichtschalter (CAN) - Off
Off - not activated
Parking light - not activated
Automatic high beam assist - not activated
Low beam - operated
Parking light left - not activated
Parking light right - not activated
Letzte Weckursache/ Werte [00;2E] - keine Störschutzursache
CAN-Bus aktiv - On
date - 2021-10-01 05:43:16
---------------------------------------------------------------
09 Central Electrics
System description: BCM PQ37BOSCH
Software number: 5Q0937087AN
Software version: 0223
Hardware number: 5Q0937087AN
Hardware version: 032
Faults:
B12CA01 - License plate lamp
Electrical error
static
---------------------------------------------------------------
Adaptation
Control unit: 09 Central Electrics
Name: Seat Heating Level Adaptation
Values:
Sitzheizung Stufe 6 untere Schaltschwelle:
Old value: 50.00
New value: 54.00
Sitzheizung Stufe 6 obere Schaltschwelle:
Old value: 51.00
New value: 56.00
Mileage: 57463 mi
Date: 2021-09-30 21:02:06
---------------------------------------------------------------
Adaptation
Control unit: 09 Central Electrics
Name: Seat Heating Level Adaptation
Values:
Sitzheizung Stufe 3 untere Schaltschwelle:
Old value: 0.00
New value: 36.00
Sitzheizung Stufe 3 obere Schaltschwelle:
Old value: 0.00
New value: 38.00
Sitzheizung Stufe 4 untere Schaltschwelle:
Old value: 50.00
New value: 36.00
Sitzheizung Stufe 4 obere Schaltschwelle:
Old value: 51.00
New value: 38.00
Sitzheizung Stufe 5 untere Schaltschwelle:
Old value: 50.00
New value: 21.50
Sitzheizung Stufe 5 obere Schaltschwelle:
Old value: 51.00
New value: 22.50
Mileage: 57463 mi
Date: 2021-09-30 21:01:13
---------------------------------------------------------------
09 Central Electrics
System description: BCM PQ37BOSCH
Software number: 5Q0937087AN
Software version: 0223
Hardware number: 5Q0937087AN
Hardware version: 032
Faults:
No trouble codes found
---------------------------------------------------------------
09 Central Electrics
System description: BCM PQ37BOSCH
Software number: 5Q0937087AN
Software version: 0223
Hardware number: 5Q0937087AN
Hardware version: 032
Faults:
B12CA01 - License plate lamp
Electrical error
static
Priority - 2
Malfunction frequency counter - 1
Unlearning counter - 118
km-Mileage - 92396 km
Terminal 15 status - On
Terminal 50 status - Off
Voltage - 13.9 V
Outside air temperature - 22.0 °C
Status Bremslichtschalter (HW) - On
Status Bremslichtschalter (CAN) - On
Off - not activated
Parking light - not activated
Automatic high beam assist - not activated
Low beam - operated
Parking light left - not activated
Parking light right - not activated
Letzte Weckursache/ Werte [00;2E] - keine Störschutzursache
CAN-Bus aktiv - On
date - 2021-09-29 17:51:18
---------------------------------------------------------------
09 Central Electrics
System description: BCM PQ37BOSCH
Software number: 5Q0937087AN
Software version: 0223
Hardware number: 5Q0937087AN
Hardware version: 032
Faults:
B12CA01 - License plate lamp
Electrical error
static
---------------------------------------------------------------
Adaptation
Control unit: 09 Central Electrics
Name: Seat Heating Level Adaptation
Values:
Sitzheizung Stufe 4 untere Schaltschwelle:
Old value: 33.00
New value: 50.00
Sitzheizung Stufe 4 obere Schaltschwelle:
Old value: 35.00
New value: 51.00
Mileage: 57328 mi
Date: 2021-09-27 09:27:37
---------------------------------------------------------------
Adaptation
Control unit: 09 Central Electrics
Name: Seat Heating Level Adaptation
Values:
Sitzheizung Stufe 3 obere Schaltschwelle:
Old value: 35.00
New value: 0.00
Mileage: 57328 mi
Date: 2021-09-27 09:26:36
---------------------------------------------------------------
Adaptation
Control unit: 09 Central Electrics
Name: Seat Heating Level Adaptation
Values:
Sitzheizung Stufe 3 untere Schaltschwelle:
Old value: 33.00
New value: 0.00
Mileage: 57328 mi
Date: 2021-09-27 09:26:12
---------------------------------------------------------------
Adaptation
Control unit: 09 Central Electrics
Name: Seat Heating Level Adaptation
Values:
Sitzheizung Stufe 5 obere Schaltschwelle:
Old value: 0.00
New value: 51.00
Mileage: 57328 mi
Date: 2021-09-27 09:25:32
---------------------------------------------------------------
Adaptation
Control unit: 09 Central Electrics
Name: Seat Heating Level Adaptation
Values:
Sitzheizung Stufe 5 untere Schaltschwelle:
Old value: 0.00
New value: 50.00
Mileage: 57328 mi
Date: 2021-09-27 09:25:15
---------------------------------------------------------------
09 Central Electrics
System description: BCM PQ37BOSCH
Software number: 5Q0937087AN
Software version: 0223
Hardware number: 5Q0937087AN
Hardware version: 032
Faults:
B12CA01 - License plate lamp
Electrical error
static
---------------------------------------------------------------
09 Central Electrics
System description: BCM PQ37BOSCH
Software number: 5Q0937087AN
Software version: 0223
Hardware number: 5Q0937087AN
Hardware version: 032
Faults:
No trouble codes found
---------------------------------------------------------------
09 Central Electrics
System description: BCM PQ37BOSCH
Software number: 5Q0937087AN
Software version: 0223
Hardware number: 5Q0937087AN
Hardware version: 032
Faults:
No trouble codes found
---------------------------------------------------------------
09 Central Electrics
System description: BCM PQ37BOSCH
Software number: 5Q0937087AN
Software version: 0223
Hardware number: 5Q0937087AN
Hardware version: 032
Faults:
No trouble codes found
---------------------------------------------------------------
09 Central Electrics
System description: BCM PQ37BOSCH
Software number: 5Q0937087AN
Software version: 0223
Hardware number: 5Q0937087AN
Hardware version: 032
Faults:
No trouble codes found
---------------------------------------------------------------
Adaptation
Control unit: 09 Central Electrics
Name: Seat Heating Level Adaptation
Values:
Sitzheizung Stufe 5 obere Schaltschwelle:
Old value: 51.00
New value: 0
Mileage: 57274 mi
Date: 2021-09-26 01:23:44
---------------------------------------------------------------
Adaptation
Control unit: 09 Central Electrics
Name: Seat Heating Level Adaptation
Values:
Sitzheizung Stufe 5 untere Schaltschwelle:
Old value: 50.00
New value: 0
Mileage: 57274 mi
Date: 2021-09-26 01:23:13
---------------------------------------------------------------
09 Central Electrics
System description: BCM PQ37BOSCH
Software number: 5Q0937087AN
Software version: 0223
Hardware number: 5Q0937087AN
Hardware version: 032
Faults:
No trouble codes found
---------------------------------------------------------------
09 Central Electrics
System description: BCM PQ37BOSCH
Software number: 5Q0937087AN
Software version: 0223
Hardware number: 5Q0937087AN
Hardware version: 032
Faults:
U101400 - Control module incorrectly coded
Intermittent
B12CA01 - License plate lamp
Electrical error
static
---------------------------------------------------------------
09 Central Electrics
System description: BCM PQ37BOSCH
Software number: 5Q0937087AN
Software version: 0223
Hardware number: 5Q0937087AN
Hardware version: 032
Faults:
B12CA01 - License plate lamp
Electrical error
static
Priority - 2
Malfunction frequency counter - 1
Unlearning counter - 125
km-Mileage - 82654 km
Terminal 15 status - On
Terminal 50 status - Off
Voltage - 11.6 V
Outside air temperature - 4.0 °C
Status Bremslichtschalter (HW) - Off
Status Bremslichtschalter (CAN) - Off
Off - not activated
Parking light - not activated
Automatic high beam assist - not activated
Low beam - operated
Parking light left - not activated
Parking light right - not activated
Letzte Weckursache/ Werte [00;2E] - keine Störschutzursache
CAN-Bus aktiv - On
date - 2021-03-13 19:59:10
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Post by jongl33t on Oct 21, 2021 19:12:18 GMT
These are my other settings under the ‘seat heater level current consumption allocation’. Anyone know what these mean?
Sitzheizung filterkonstante fuel waermefluss - 1s
Sitzheizung Regeltemperaturkorrektur bei waermefluss - 0.00 c
Sitzheizung CAN - heizmatten am BCM
SitzheizungSfreigabe - not installed
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Post by dv52 (Australia) on Oct 26, 2021 20:41:09 GMT
@jong133t: Hi and thanks for the PM. It's difficult to follow your changes. Please post-up pictures of the current settings
Don
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Post by jongl33t on Oct 26, 2021 22:18:20 GMT
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Post by dv52 (Australia) on Oct 27, 2021 4:44:06 GMT
jongl33t - John: First, I start by acknowledging that I have no official material from VW/Audi about this stuff - so we are learning together and I'm purely guessing!! My hunch is that values in the 6 x Stufe (Stages) in your pictures can't be changed to any number that you want - I suspect that there are strict rules that must be followed
To try to figure-out what these rules might be - I've inserted the factory values from an Audi A3 8V for the seat Heating Level adaptation channels into the chart below (note: these values might be different for other VAG cars, but I suspect the "dynamic" is the same across ALL MQB platform vehicles):
By simple deduction from my chart (and nothing else) - I suggest that the rules for making changes to these channels are: Seat Heating Level Adaptation - Rules (for MQB platform cars - version 2)
- The Stages are factory-set in pairs (as shown) and since each of the 2 x front seats have 3 x heat Settings per seat - 6 x Stages are needed. I'm not sure, but I suspect that the odd "Stufe" (Stage) numbers refer to the driver seat and the even "Stufe" numbers relate to the passenger seat - maybe?
- There is only ONE temperature sender per seat - it's integrated into the cushion seat element. So the seat-back element is not monitored. This means that it's NOT possible to separately change the cushion and back heat settings for a particular seat (the control mechanism isn't that sophisticated)
- The values for increasing Stage numbers must monotonically increase (meaning that the values for successively higher odd/even numbered Stages can't be less than the values to the left of the chart)
- Each Stage uses what engineers call "hysteresis". This is a method of dynamic-lag that is used in heating applications to stop the control system from continuously switching OFF and ON again in rapid succession (it's called "hunting") - which would happen if only a single threshold temperature was used.
By having 2 x temperatures for each Stage, the control mechanism will switch-ON heating whenever the seat temperature falls below the "untere" (lower) value and the element will remain switched-on until the "obere" (upper) temperature is reached. In the other direction, if the element temperature is above the "obere" value, heating will be switched-OFF until the temperature falls below the "untere" value. Hopefully this explains how a "dead-zone" is created when the temperature for the heat element is between the upper/lower values. In this temperature range, the control system does NOT modify the ON/OFF state of the heat-element (hence, this stops "hunting").
So - the hysteresis rules are:
- The value of the "untere" channel in any Stage must always be lower than the "obere" value
- The difference between the "untere" and "obere" channel values should be retained as factory-set, per "Stufe" number. In the chart above this is 0.5 °C for ALL "Stufe" numbers, but this varies with the model car.
Don
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Post by jongl33t on Oct 27, 2021 15:45:39 GMT
Wow thanks Don,
I’ve been trying different values based on your notes without much luck. I’m probably doing something wrong. My goal is to turn down the heat on the bottom portion of the seat. Can you send over some values you think might work?
Cheers
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Post by dv52 (Australia) on Oct 27, 2021 20:47:06 GMT
@jongi33t: hmm..... as I said, we are learning this stuff together. In thinking further, I have a refinement to the "DV52 seat heating hypothesis" that makes more sense (to me, at least).
I have no doubt that like me, you also were puzzled in reading my "version 1" rules why there are 6 x Stages when there are only 3 x heating levels? I proposed in my version-1 rules that the 3 x heat settings operated in pairs - hence the 6 x Stages in the adaptation channels.
Well..... I have to admit that my initial guess at this aspect of seat heating was clumsy and it was simplistic nonsense (I'm a moron!!  )!! Doubtless, anyone else reading my initial suggestion about Rule (1) would have reach the better conclusion that clearly since each of the 2 x front seats have a separate circuits, and since there are 3 x heat settings per seat - this needs 6 x Stages. This is obvious and I now think that the fact that the factory settings are the same for pairs of "Stufe" is simply because the default heating values are identical for both the passenger and driver seats
Now, I'm not sure which Stage number relates to which seat - but in other protocols, VAG tend to prioritize the driver-side. So I'm guessing that the odd- numbered "Stufe" channels are the driver-side seat and the even numbered "Stufe" channels are passenger side seat (maybe?).
I have updated Rule #1 on my initial proposal to reflect this changed thinking
Unfortunately, I don't have a car in my workshop at the moment to check my latest hypothesis - but you can experiment if you want
Don
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Post by dv52 (Australia) on Oct 27, 2021 21:50:52 GMT
PS: Apropos of your specific question and as i have suggested in my version 2 Rules, I don't believe that it's possible to separately alter the cushion and back elements in a particular seat.
Of course I may well be wrong and I acknowledge that zero815 claims to have done this - but according to my wiring diagrams (for MQB platform cars), there is only ONE temperature sender per seat. The temperature sender is integrated into the seat cushion - so the back heating element isn't monitored.
As for your question, I suggest that you start by returning ALL adaptation channel settings back to factory values - the records that you posted are not the original factory values. If you want further help. post-up the original factory values - or post-up details of the car and country
Don
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Post by jongl33t on Oct 28, 2021 2:06:43 GMT
Hey Don,
I reverted my seat heater values back to factory. Here they are:
Sitzheizung Filterkonstante fuer Waermefluss: 1s
Sitzheizung Regeltemperaturkorrektur bei Waermefluss: 0.00c
1 untere 21.5
1 obere 21.5
2 untere 21.5
2 obere 21.5
3 untere 33
3 obere 35
4 untere 33
4 obere 35
5 untere 50
5 obere 51
6 untere 50
6 obere 51
My car is a 2017 GTI S North America
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Post by dv52 (Australia) on Oct 28, 2021 4:38:03 GMT
John: hmm...... with no offense intended - I can't accept your numbers!
You say:
1 obere 21.5
1 untere 21.5 0
3 obere 35
3 untere 33 2
5 obere 51
5 untere 50 1
2 obere 21.5
2 untere 21.5 0
4 obere 35
4 untere 33 2
6 obere 51
6 untere 50 1
I've added the bolded number - which is the difference between the upper and lower values
It's not possible to have a difference=0 (unless the values themselves are zero) because this violates the Hysteresis principle. Having both "obere" & "untere" values equal for a "stufe" number would cause the control system to "hunt" as I described previously.
Don
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Post by dv52 (Australia) on Oct 28, 2021 5:34:49 GMT
John: I've searched through my MQB database for North America Region (NAR) model mk7s and I found these: 2015 S 18TSI_5MT 2015 GTI S 2015 US Golf TDi 18T highline 2016 GTI S 2016_GTI_Autobahn 2016 Sport Wagon S 2015 TDI For ALL these cars, the factory values for seat heating are the same: Stufe 1 untere 21.50 °C Stufe 1 obere 22.50 °C Stufe 2 untere 21.50 °C Stufe 2 obere 22.50 °C Stufe 3 untere 35.00 °C Stufe 3 obere 36.00 °C Stufe 4 untere 35.00 °C Stufe 4 obere 36.00 °C Stufe 5 untere 52.50 °C Stufe 5 obere 53.50 °C Stufe 6 untere 52.50 °C Stufe 6 obere 53.50 °C Using the factory values above, I've created the table below - which applies the rules from my hypothesis:  So, using the table above, the general approach that I suggest for making actual changes to the heater level current consumption allocation channels is: - Select the seat to be modified (i.e. Driver or Passenger)
- Select the seat heating level to be modified (i.e. Low, Medium or High)
- Depending on whether you want a hotter, or cooler seat - either increase, or lower the NAR value by the same amount for both "untere" and "obere" channels
- Take care that the new value is NOT larger than the values in the next higher heat level, or NOT smaller than the next lower heat level. See Rule #3 - the values in successive heat levels must monotonically increase
Note: as I have indicated in my Rules (version 2) - it's NOT possible to separately change the setting for the heating elements on the seat-cushion and the seat-back. It's only possible to change both heating elements together on a particular seat!!
Don
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falcon
Junior Member
Posts: 57
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Post by falcon on Oct 28, 2021 16:06:28 GMT
@ Don and @ jongl33t
I am also familiar with the above-mentioned original values. And also the distribution of 1,3,5 (driver) and 2,4,6 (passenger). The references to the rules about the levels are so ok.
I once read somewhere that there should be 1 degree difference between the lower and upper limit value, so keep this distance even when changing.
Of course, a defect in one mat would also be conceivable, a short circuit between the wires of the heating mat, so that only part of the heating mat heats up and this is of course warmer because the current increases.
But I do not know whether it is technically possible at all for golf heating mats that the wires in the mat can touch each other without authorization.
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Post by dv52 (Australia) on Oct 28, 2021 20:13:42 GMT
falcon : Thanks for the confirmation that my guesses weren't too far wrong!! 
I'm assuming that there are no faults in either "mat". The wiring diagram below was taken from a mk7.5 RoW - it shows a fairly simple wiring arrangement for the 2 x heat elements (the 2 x elements are wired in parallel) and it also shows why it's not possible to separately change the seat-cushion and seat-back temperatures (there is only ONE thermostat per seat)
Don
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falcon
Junior Member
Posts: 57
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Post by falcon on Oct 29, 2021 13:50:35 GMT
@ Don
As I read here in the forum, you always know a lot about most things.
Do you know if
a) the control unit monitors the heating mats (resistance or current)?
b) how is the construction of the heating mats (wire or heating foil)?
c) which resistance value would have to be measured on each mat as a starting value?
If a) is true then there will be no defect in the mat; because then the control unit would have to report this.
And if it were heating foils, then a short circuit would hardly be possible.
A comparison of the resistance values between a functioning mat and a mat that is too hot could indicate an error.
The questioner's description of the error (... no reduction in temperature possible ...) only revealed the hardware defect.
I know this error from a retrofittable heated seat pad that was only connected to the cigarette lighter.
Otherwise the questioner would really have to try step by step to reduce the temperature limit values according to your "rules" and check whether the seat temperature can then be reduced.
Have a nice weekend
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Post by dv52 (Australia) on Oct 29, 2021 20:10:15 GMT
falcon : Thanks for the kind words- but I'm really learning this stuff like every one else here! As for your questions, my guesses are: (a)Yes, the module J519 (which OBD11 calls central electrics) in my wiring diagram monitors the heat elements. As I said previously, the 2 x heat elements are wired in parallel - so the electrical current for the circuit tells the module the health of both elements. (b)I'm not sure about the construction type of the heat elements. The seat heater element is permanently bonded to the seat padding - so it's difficult to tell how the element is constructed. However, I suspect that because of the bonding process, it's probably made of some type of newer composite material (c)My diagram shows 2 x connectors that attach the heat elements together - disconnect these and measure the resistance for each mat Don
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Post by meesters on Mar 26, 2023 11:37:01 GMT
Hi Don, I'm new on the forum and owner of OBD11 since 2 months now. I have some experience with VCDS though, but think for just simply do some coding and adaptations this works way more easy.
Thanks so far, since I'm retrofitting pre-facelifted ergoactive chairs with seatheating in my golf 7.5, and in this topic you clearly explained already everything about the temperature settings and how it works. So that makes a lot of sense.
Now I was wondering what the settings are for the following adaptations, I added my current settings, which I could find so far and what I think of it.
(a) Sitzheizung filterkonstante fuel waermefluss - 10s (this will be the interval for measuring I think?)
(b) Sitzheizung Regeltemperaturkorrektur bei waermefluss - 1.10 c (Some heat flow correction, but I have no idea what that means) (c) Sitzheizung CAN - heizmatten am BCM (This makes sense, since all pins are connected to BCM) (d) SitzheizungSfreigabe - unvernetztes_Heizmodul_verbunden (not sure, but my intuition tells me that it should be set to "not installed" in a golf 7)
Does somebody knows the correct settings or maybe someone would like to post his complete list of adaptations for the channel "Seat heater level current consumption allocation", from factory installed heated seats in a golf 7.
Great thanks to all!
Chris
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Post by dv52 (Australia) on Mar 26, 2023 20:07:24 GMT
Chris: hmm...... need more information - this stuff varies greatly across markets and mk7 build years
What country? And please post-up details of the BCM. Don |
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Post by trapdoor on Mar 30, 2023 9:40:41 GMT
Thanks for reviving this topic Chris, I have just installed heated seats on my 2015 Golf and they are working and I have heat and at 3 different levels however no LED's lights on the switches to show they are working. the buttons bring them on and the seats are heating up fine however the lights don't light up. I have tried another heater control unit and it behaves the same so I think the LED's just need a software activation but looking in OBDEleven and online I can't find what I'm missing. Has anyone else on here had the same issue?
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Post by vwjap on Mar 30, 2023 15:25:24 GMT
Could it be seat menu, display in long coding?
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Post by trapdoor on Mar 30, 2023 16:09:56 GMT
Could it be seat menu, display in long coding? Thanks for that - Are you saying that in long coding it has an option called "seat menu display" and it may be what I need to switch on? Sounds an exciting possibility if that is the case. I can't try it at the mo but will report back later. |
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Post by vwjap on Mar 30, 2023 17:09:21 GMT
Yes in long coding I have seat menu set to display
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)!! Doubtless, anyone else reading my initial suggestion about Rule (1) would have reach the better conclusion that clearly since each of the 2 x front seats have a separate circuits, and since there are 3 x heat settings per seat - this needs 6 x Stages. This is obvious and I now think that the fact that the factory settings are the same for pairs of "Stufe" is simply because the default heating values are identical for both the passenger and driver seats
