2018 Karoq 2.0 TDI 4X4SE L. Right roller wheel on steering wheel seems to work intermittently to access menus and change display.

I have tried to follow the manual but don’t know if I’m missing a simple trick.

Both yesterday and today, when rolling the wheel, nothing changed on the display (e.g. speed, to range). Pressing the right button next to it (two screens superimposed) did not bring up any option to change the menus on the display.

After about half an hour, functionality seemed to return.

Is it to do with the speed of the car (didn’t work in town but did on the motorway!)?

Thoroughly confused.

Intermittent fault, maybe, that’s impossible to replicate?

Should the roller wheel and the ‘menu’ button always give a change in the display?

Please advise.

Car going to garage next week so would be nice to know in advance nice what to say to them about it.

Thanks

You have a Error Log?

Didn’t know about that. Where would I look, please?

I don’t have any diagnostic tools, BTW.

Edited 8 September, 20258 Sep by Nibbos

With Diagnose Tool...

Left Button Side works every time?

Left side button controls volume just fine.

It's either a contact within the actual button module, which I believe just pops out with a plastic pry tool somehow, should be fairly cheap to replace compared to the second option, which is a bit more likely as there are people with this issue: clockspring.

This module lives between the steering column and steering wheel and allows you to turn the wheel while having wires connected to it. It's basically a wound up spool of wires, which overtime can become frail and crack and break, resulting in the intermittent issue what you're experiencing. First the controls go every so often, then it happens more and more, then you'll start seeing issues with the airbags appear on the dash, horn stops working as the connection fully separates.

It's possible to fix the problem, there are people fixing clockspring modules, most of the time just bridging the break, but they won't be as good as a fresh uninterrupted ribbon. You can find them on ebay or maybe your local mechanic knows somebody with similar pricing. You can also get second hand ones, based on the part number listed on the clockspring for the fraction of the cost. With second hand ones, try getting one from a car with low mileage. Second hand ones and the repair service should be right around the £70 mark, while brand new ones can cost around £300, without labour, and stealers charge upwards £600+ for fixing it.

If you go down the replacement or repair route, you need to disconnect the battery, pop the airbag out (you have videos online on how to do it), remove the steering wheel (it'll be tough to take off, make sure to mark it, but it should also be marked from factory), then remove the steering column switch assembly which includes the clockspring and also the various arms and levers like indicator, wiper control and the cruise control arm. They can be separated from the clockspring, and you can easily order a new one and fit that, no coding required. After battery disconnection, there will be some errors, some will go away after you start driving, some remain for the duration for the first ride, but after the second start everything should clear.

Clock spring is unrealistic, the LIN is a 1 wire bus, then the left side should or must also cause problems

And of course, if a new or used module is installed, it must be coded to the vehicle. The steering column unit is a sub-subscriber of the BCM.

The clock spring ist the unit

Edited 8 September, 20258 Sep by Cairus

Thanks.

I'll investigate/experiment a little further and let the garage know what I'm experiencing.