2019 (actually 24th December 2019, almost 2020) 2 litre 190PS DSG 4X4 Edition model.

I've just got the car back from having a new mechatronix box fitted under warranty.

Mrs SDA went to open it with her keys that have been home while the car was away.

No flashing red light so a dud fob battery.

Replaced battery and remote flashing like a good un.

The Karoq didn't want to know.

So looked up process for re synchroising and followed it but still the Karoq ignores it.

Given Skoda's weird and wonderful directions for these things was I supposed to stand in a bucket of Czech lager, facing east, with one trouser leg rolled up and whistle White Cliffs of Dover or something?

What have I done wrong?

What have I missed out?

Help appreciated

With VAG remotes, you often have to press a button with no battery fitted before installing the new one. Worth a try.

3 hours ago, Rbz5416 said:

With VAG remotes, you often have to press a button with no battery fitted before installing the new one. Worth a try.

I saw it said that after I'd loaded the new battery, so I removed it and pressed a button for the required 5 seconds, then I refitted the battery and it made no difference.

I tried the press a button and then manually unlock but that made no difference.

The key that went with the car when it had all the work done works fine.

The DSG is part of the Immo. New mechatronics means programming the Immo, and for this, the full number of existing keys should always be in the car.

Edited 1 August, 20251 Aug by Cairus

4 minutes ago, Cairus said:

The DSG is part of the Immo. New mechatronics means programming the Immo, and for this, the full number of existing keys should always be in the car.

So how can the Mrs keys be programmed as they were in her handbag whilst the car was away having the mechatronix swapped.?

Is only the radio remote control not working?

It's just the normal keyfob. It's flashing red now that I've put a new battery in it but I've tried all the stuff in the manual and not a peep from the car. As far as I can tell everything else is working fine.

You can start the Car?

I can start the car with the key that went with it for the new mechatronic box, but it won't start with the key that was left behind.

Completely normal. Your key that was left behind has been deleted from your vehicle.

So how do I get it undeleted?

Suggest that you speak to whoever fitted the new Mechatronic Box.

My car was at the Dealer recently and they requested that I took both keys with me in case they had to reprogram the Immo

Local dealer wants £130 to reprogramme Mrs SDA's key. Spoke to supplying dealer (Johsons, Wolverhampton) and they'll do it for free. Only trouble is they're an hour and something away and the local dealer is 15 minutes from home.

I know what I'd do for about £75 an hour minus expenses.