Author Topic: Bum warming mystery  (Read 1443 times)

Offline Exonian

  • Serious forum addict
  • *
  • Posts: 9,407
Bum warming mystery
« on: 04 January 2026, 21:44 »
It might not have escaped members in the northern hemisphere’s notice that it’s been a tad chilly of late.

I’ve noticed a few times now that when starting the car when it’s cold enough outside to trigger the steering wheel heater to automatically activate, within a few minutes there seems to be a low amount of warmth emanating from the seat also even though I tend to have the seat heaters switched off.
Even on the low heat setting the seats get quite warm pretty quickly when switched on, but as I have cloth seats I very rarely bother using the heated seats.
This secondary heating (via the heated steering wheel low heat setting?) is a very subtle warming and I’m wondering if I’m imagining it.
And no, it’s not festive food related! 

Can anyone shed any light/heat on this? Maybe you’ve seen something on another forum or have some technical knowledge.
‘25 8.5R, ‘23 8R, ‘20 8CS, ‘19 135iX, ‘19 TCR, ‘17 Ed40, ‘17 GTD, ‘15 7R, ‘13 GTI PP, ‘11 GTI, ‘09 GTI, ‘98 Ibiza Cupra, ‘05 GTI, ‘06 Polo GTI, ‘04 GT TDI, ‘05 Fabia vRS, ‘02 GTI T, ‘03 Ibiza TDI 130, ‘01 Leon 180, ‘89 mk2 16v, ‘99 Ibiza TDI, ‘96 VR6, ‘98 Ibiza TDI, ‘92 VR6, ‘88 mk2 8v, ‘92 Polo G40, ‘91 mk2 8v, ‘89 mk2 8v, 205 GTI 1.9, ‘83 mk1 GTI, ‘80 Scirocco GTI, plus some others I’ve forgotten 

Offline Watts

  • Forum addict
  • *
  • Posts: 4,806
Re: Bum warming mystery
« Reply #1 on: 04 January 2026, 22:54 »
No idea but also didn't know the wheel heated up automatically below a certain temperature. I've been heating the seat and wheel quite often recently, loving it! I have noticed a couple of times that the driver/passenger temperatures don't sync until I've been driving for a while.
2025 Oryx Black Edition Clubsport with Performance Pack.
Previously:
2019 Oryx 5dr TCR with Reifnitz.
2015 Tornado Red 3dr GTI PP, manual, Santiagos, Audi short shifter.

Offline Exonian

  • Serious forum addict
  • *
  • Posts: 9,407
Re: Bum warming mystery
« Reply #2 on: 05 January 2026, 10:00 »
On my previous mk8’s the steering wheel came on automatically at around 11°c (one with winter pack and one without) but the 8.5 seems more haphazard as to what temperature it switches itself on.
There’s no doubt a setting in the menu’s on the 8.5 but being as it just seems to work ok I’ve never gone delving in.

Even when it’s set to Sync as default it has its moments. I tend to go back in and reset it from time to time.
‘25 8.5R, ‘23 8R, ‘20 8CS, ‘19 135iX, ‘19 TCR, ‘17 Ed40, ‘17 GTD, ‘15 7R, ‘13 GTI PP, ‘11 GTI, ‘09 GTI, ‘98 Ibiza Cupra, ‘05 GTI, ‘06 Polo GTI, ‘04 GT TDI, ‘05 Fabia vRS, ‘02 GTI T, ‘03 Ibiza TDI 130, ‘01 Leon 180, ‘89 mk2 16v, ‘99 Ibiza TDI, ‘96 VR6, ‘98 Ibiza TDI, ‘92 VR6, ‘88 mk2 8v, ‘92 Polo G40, ‘91 mk2 8v, ‘89 mk2 8v, 205 GTI 1.9, ‘83 mk1 GTI, ‘80 Scirocco GTI, plus some others I’ve forgotten 

Offline JoeGTI

  • I live here
  • *****
  • Posts: 2,367
Re: Bum warming mystery
« Reply #3 on: 05 January 2026, 13:21 »
Are you sure you aren't self-warming the seat Exonian  :laugh:

I've definitely noticed some subtle differences in the 8.5 compared to the 8. For me, I think the steering wheel doesn't get as "hot" as it did in the MK8. It only seems to get a bit lukewarm in the new car, even when it's at the full setting.

Both my seats and wheel do come on automatically these days though, I am fairly certain that setting to have them come on when temps are low (below 11?) is still there in the menus.
MK8.5 GTI Clubsport. Moonstone grey. Queenstown 19’s. DCC. Harmon Kardon sound. Pano roof.

Offline Exonian

  • Serious forum addict
  • *
  • Posts: 9,407
Re: Bum warming mystery
« Reply #4 on: 05 January 2026, 14:49 »
Hot bot syndrome!

Most of the vehicle’s settings automatically moved from one car to the next which saves fiddling through menus on the dealer forecourt.

And you’re right, the steering wheel gets warm rather than hot in the refreshed model which is a positive.
‘25 8.5R, ‘23 8R, ‘20 8CS, ‘19 135iX, ‘19 TCR, ‘17 Ed40, ‘17 GTD, ‘15 7R, ‘13 GTI PP, ‘11 GTI, ‘09 GTI, ‘98 Ibiza Cupra, ‘05 GTI, ‘06 Polo GTI, ‘04 GT TDI, ‘05 Fabia vRS, ‘02 GTI T, ‘03 Ibiza TDI 130, ‘01 Leon 180, ‘89 mk2 16v, ‘99 Ibiza TDI, ‘96 VR6, ‘98 Ibiza TDI, ‘92 VR6, ‘88 mk2 8v, ‘92 Polo G40, ‘91 mk2 8v, ‘89 mk2 8v, 205 GTI 1.9, ‘83 mk1 GTI, ‘80 Scirocco GTI, plus some others I’ve forgotten 

Offline Hertsman

  • I live here
  • *****
  • Posts: 738
Re: Bum warming mystery
« Reply #5 on: 06 January 2026, 13:54 »
The BMW automatically heats seat on setting 1 when temperature is below 4 degrees, though the steering wheel needs activating.
Present - BMW 128Ti Alpine White, 18" Performance Tyres, Sun Protection Glass, Parking Assist, Heated Steering, Boston Trim, Split Folding Rear Seats, Electric Lumbar Support
- 2nd car: 2019 Golf R DSG Pure White 19" Black Pretoria, Privacy Glass, Rear View Camera, Dynaudio, Keyless
- 2019 Pure Grey GTI TCR 5 Door DSG Reifinitz Wheel DCC Climate Screen 90% Tint
- 2016 Lapiz Blue Golf R 5 Door DSG Pretoria DCC
- 2013 Pure White GTD 5 Door DSG DCC