New car and some issues I need help with.

[MikeJay]

Just bought a new Leon. I have a few issues I could do with some guidence with.

It won't lock with either the fob or the physical key. I only have one key and I dont think it's the Orginal one. I ha e tried a few ideas from YouTube about pairing it but none of them worked.

Issue 2 the stop/start feature doesn't work and I get a message saying its using too much power?

Issue 3 when listening to DAB radio if I turn the back window heater on it mutes the radio.

Issue 4 the front parking sensor shows an elimination mark and doesn't seem to work.

Could they all be battery related?

Oh and my boot latch just stopped working but I have seen a video on how to fix that.

 

[LeoSlo]

Boy I hope you at least didn't pay much for the car based on this and your earlier post..

I'm not a mechanic, but my first guess would be to check the alternator, for the issues you have while the car is turned on (issue 2, 3 and maybe 4).
For the parking sensors, it may just be that one of them is at fault, in which case all of them stop working and you get an error on screen.
As for the locks on the car, no idea, maybe its electrical or the locks just failed and need to be replaced.

The battery is unlikely I'd say, but it could have bad voltage.

My suggestionion is that you find a car electrician/mechanic and have a look at the electronics i.e. battery, alternator, ecu fault codes etc..

 

[TripleBob]

Ok, sounds like someone has given you a non original key - which probably isn’t paired to the immobiliser. It may not even have the correct module in it to be paired to the car (like cheap AliExpress knock off keys, there’s physically no transponder inside them, you’re meant to transfer the innards from an OEM key).
Major rule of car buying - never buy a car that doesn’t have both keys

Issue 2. This can be a major rabbit hole of trying to trace energy consumption. Hopefully it’s just a case of needing a new battery - if it’s been owned by a boy racer (which from your other post is pretty much a definite yes) I’d guess it’s probably not had a new battery recently, or if it has it’s probably not the AGM type battery needed for stop start to work properly.
The previous owner might have ‘coded out’ stop start by setting a higher threshold than the battery can reach, to basically trick the car into not allowing stop start to happen. Or there could be a fault somewhere - such as the alternator, or there have been instances previously of people with faulty sensors (or even a faulty rear light cluster!) that was causing excessive power draw

Issue 3. Could potentially be a gremlin caused by duff battery. Could be someone’s been ducking about with the wiring

Issue 4. Could be a faulty sensor. Could be that someone’s crashed it - are you sure the front bumpers the original? Does it even have front sensors? Again if someone’s been messing with the coding on the car they may have tried to enable them when they aren’t there

Boot latch - define not working? Won’t latch? Or is it the classic Seat handle/logo gets stuck at an angle rather than returning to the correct vertical/closed position (because the hinge mechanism has no protection from the elements and fills with muck)