ords

Next time you feel it a bit skittish in eco mode, change to sports mode and see if there is any difference.

What year is your car? You have put 2007.

Any help?

This should be the p/no which you can Google 5Q0035726E

Can you look for the wiring to the sensors yourself? It's possible they haven't been re-connected properly and water has got into the connectors.

I would take the carpets & felt out and as soon as you see water on the floor try and see where it's coming from.

I didn't realise that you can open the boot from the inside, that's why I was confused.

Sorry, I didn't mean it to appear to be so abrupt.

There are many threads on this subject. Use the search facility.

Instead of coming to a complete halt, why can't you shift to "N", press the brake pedal slightly and restart the engine? Then into "D". Obviously needs some care depending on traffic conditions.

What do you mean " can open it manually from in the boot"? I'm assuming you've tried the central locking switch in front of the gear lever?

If it was a decent system it would suggest an alternative route if possible. Only on rare occasions has mine said it's changing the route because of current traffic conditions.

Take a picture of the battery label. Someone will tell you if it's the right spec.

Your battery is a year old under warranty. Get it checked out.

If you can get the battery fully charged, disconnect one of the terminals and leave it for as long as possible & then try to start it. If it starts then you know the battery is ok & there is a current draw which needs investigating. Your battery will be covered by its warranty as it's only a year old. Get it checked out. Was the new battery coded when fitted? I know it's the luck of the draw, but mine is on it's original battery, gets left for 6/8 weeks at a time and always has enough power to start up.

If it's a manual this may help.

It's not you. It's very slow to get updated info. Most of the time it will say slow moving traffic in x number of miles but do nothing to suggest an alternative. Mine loves narrow lanes as well. Keep your Garmin in the car or use Google maps as a back up.

Have you tried different modes?

I had to Google that🤣

OP has said that they work correctly with the remote.

Park it on a dry surface and see if there are any wet patches

Whatever it is, it needs looking at urgently. If it unlocks during an emergency, it's possible non of the safety related items will work. IE: airbags, seat belt tensioner.

Do a search in this forum. Many threads on this subject.