GTI 7.5 MY19 Battery disconnect and keyless?

[Grahamt]

Just after a bit of advice guys.......

I'm working away for about 8 weeks so intend on disconnecting the car battery when it's in the garage, it'll be locked when I leave it and steering wheel lock on. Yes I could leave a battery conditioner connected but I don't like leaving electrical items on standby, unless absolutely necessary, a friend had a bad house fire years ago as a result of a battery charger failure.

Mines got keyless, I usually lock the car and disable the keyless fob transmissions when parked overnight, partly to prevent repeater signal theft of the car and to save the keyless battery.

Does anyone know if it's possible to disable the keyless fob transmissions when the car battery has been disconnected?

When I reconnect the car battery will the keyless fob auto resync with the car?

[Gnasher]

I did exactly the same for 4 months - admittedly a MK7 rather than a Mk7.5 but the principals are virtually identical.

1. Leave it in gear with the handbrake off (and chock a wheel for extra security).
2. I left mine unlocked as I wasn't sure how to lock it without power going to it. The passenger door wouldn't be able to be locked as I don't think it's got a keyhole under the cover like the drivers door has.
3. Pump the tyres up to the maximum recommended tyre pressures to hopefully stop any flat spots on them.
4. Doing this will pause the service indicator (for time) as my service indicator was 4 months behind when I reconnected the battery.
5. Expect a lot of errors to come up on the dash when you reconnect. These will clear within a few minutes (30 maximum).

Mine appeared to have no ill effects from being stood in the garage for that amount of time, just remember to drop the tyre pressures back down to the normal values you run them at. As long as it doesn't get rained on, the discs shouldn't rust.

Mine's keyless too and the fobs were recognised fine when I reconnected it. If you want to disable the fobs themselves, just take the batteries out of them too (and if you're still concerned, just leave them in a faraday pouch or metal biscuit tin (or similair).