D402

Welcome @ABMonro66, sorry you're having problems. My guess is a dodgy battery - there was a batch of defective batteries in 2017 Superbs, mine included. If it's a diesel, maybe you have a fault with the glowplugs.

Apologies, missed your earlier post and forgot that my car from December 2017 is MY18.

I think the 'manouevre braking' (automatic braking at low speeds based on the parking sensors) came in the 2017 model year. You should have the 'Front assist' (automatic emergency braking based on the radar), do you get the distance warning if you tailgate someone (for test purposes only of course 😉)?

Indeed, there's a very long way to go; we're being sold a vision of self-driving vehicles that is basically science-fiction with today's technology.

To add to this, radar does detect stationary objects but the signal processing filters them out; a moving object that subsequently stops continues to be tracked which is why it sometimes does pick up stopped traffic. The ACC also tries to build a model of the road curvature ahead to determine whether an object is in your path or not but can only do this by plotting the paths of moving vehicles ahead. This often goes wrong if you are following a single vehicle that pulls into a lay-by or filter lane then stops while you intend to drive past in a parallel lane - the ACC can only assume that you will follow the same path as the leading vehicle and will slow you down. If another vehicle in front has passed the stopped vehicle then it will usually follow that OK having detected the alternative path. This junction near Redditch gets mine every time if there's only one car in front of me and it turns right: Google Streetview link - A435 near Redditch

Fitted new rear discs and pads; the nearside outer surface had rusted and worn that pad out, the others were ok. Close-up of the rusty disc, it took quite some persuasion to get this one off the hub Guess which pad was on the rusty surface? Much better now

The first notch up, "INT", is auto

Mine only does this when my phone isn't in the car.

Any warning lights on? Anything rubbing on or wrapped around the steering shaft under the dashboard? Does the steering wheel rub on the steering column trim at all as it turns? @Tech1e Good point on the battery

It sounds like the steering assistance is being reduced due to high temperatures - this is a self-protection function in electric power steering systems. Is it particularly hot at the moment where you are (seems likely from your location) or are you doing frequent turns while stopped or at very low speeds during your journey?

@Bap33 Thanks for the advice. I've got one disk that's heavily rusted just on the outside and has worn the corresponding pad right down so will have to replace the lot unfortunately.

A question for those who have DIY changed rear discs please - do you have to remove the caliper bracket and, if so, what tool do you need for its bolts? ETA: no, you don't for solid discs https://www.briskoda.net/forums/topic/467878-rear-discs-and-pads-issue/?do=findComment&comment=5309852 Thank you @prdisaac

There's nothing special about the hydraulic side of EPB calipers so you can bleed them as normal. Best practice is to wind the motor back then push the piston back to minimise the volume of fluid in the caliper. Do not rotate the piston to wind it back. Superbs have Conti rear calipers but the TRW instructions should be relevant: TRW Electric Park Brake Service Instructions