My house is right on the road, and I park very close to our front door.  We keep all our keys just inside the front door. 

The car (24 reg pre-FL) has keyless entry.

Three or four times now (in the couple of days since I got the car) I've noticed the red LED on the key fobs flashing, while they are sitting supposedly inert, a long time after use.  

Is this a problem, and if so is there a solution?

Plus... the fobs are on key-rings with front door keys etc. .  If we go out of the front door and don't use the car, we'll still be walking very close to it.  Will it unlock the car and leave the contents at risk?

 

 

The key is constantly trying to communicate with the car if the light is flashing. It will run the fob battery down a lot quicker than normal. To eliminate any risks either locate the key well away from the car (e.g. other end of the house) or place the key in a RFID faraday pouch to insulate the signal (faraday's are cheap to buy online).

Be aware though that some faraday pouches don’t last. I bought two when I got my Mk4 with KESSY (March 2021); the pouch I use is now completely ineffective.

I assume over the time it has developed a few cracks which permit the signal to pass through.

Other pouch is fine.

A replacement is on order…

If you carry those key pouches around with you, they definitely wear out fairly quickly (I've some reviews suggesting 6 months). If popped on a shelf or something, should be fine. I bought 3 new ones recently, didn't fancy taking a risk for only 8 quid a pack

I use the pouches only for storing the spare keys not in use, they sit in a drawer in my study. The key in 'current' use is kept far enough away from the garage so as not to be a problem when home. I rotate my 3 keys in turn every 4 months to use them (and their batteries) evenly.