relay attack on new z4?

[Ledg]

So im swapping our e89 30i for nearly new g29 30i on Friday. It comes with comfort access, just wondering if anyone that owns one knows if the key has a motion sensor in it and stops working after a few minutes of not being moved or they have changed the wireless tech in it to something that cant be relayed. Don't really fancy letting someone have it with zero effort. I love all the new tech, but it really does make it easy to steal.

[markplant]

Deffo get somthing fitted keyless cars can be knicked with a 100 quid rf repeater no damage no nothing. Really w**k the car manaftures had a injuction with the uk press not to say owt cos it is that bad. A ghost imobilizer is the minimum to put in . They are 399 fitted and it stops it starting via can great bit of kit size of your finger.but will be able to look aftet you a bit.

[Z4monster]

I understand that the G29 keys do go to sleep after a few minutes of being left stationary.

If in doubt, you can always store it in an RF pouch or metal tin. That's what we use for my partners Mercedes key which DOES NOT go to sleep when left untouched.

[Ledg]

I thought about getting on of the ghost immobilisers until I saw this video https://youtu.be/Mqkq7HJFJ0E and though it was a waste of £400.

[Ledg]

I understand that the G29 keys do go to sleep after a few minutes of being left stationary.

If in doubt, you can always store it in an RF pouch or metal tin. That's what we use for my partners Mercedes key which DOES NOT go to sleep when left untouched.

That’s what I was planning on doing. If it does go to sleep it wouldn’t be too bad if we forgot to put it in one over night. If you can I’d turn comfort access off anyway. Quite happy to press a button to unlock it.

[Sladester100]

I understand that the G29 keys do go to sleep after a few minutes of being left stationary.

If in doubt, you can always store it in an RF pouch or metal tin. That's what we use for my partners Mercedes key which DOES NOT go to sleep when left untouched.

That’s what I was planning on doing. If it does go to sleep it wouldn’t be too bad if we forgot to put it in one over night. If you can I’d turn comfort access off anyway. Quite happy to press a button to unlock it.

Didn’t realise they ‘go to sleep’ good to know. Is this documented somewhere?

You can turn comfort access off in the settings on mine I’m sure. Although now I’m typing this I’m thinking maybe that was just the “perimeter” comfort bit...

Regardless - we use simple RF blocking key pouches from Amazon - https://www.amazon.co.uk/gp/aw/d/B07R3K ... asin_title
They were £7.99 for 2 delivered and are of good decent quality. Come with a small key ring like attachment so are easily hung and we pop them on hooks in a cupboard - once the habit of doing so is learned it just becomes the norm to secure the key when getting home for the day

We learned the hard way when some scum tried to steal the wife’s F45 last year and luckily we woke up to the noise of it unlocking!! (A hot night and the window being open helped!)

Buy a pouch

[ronk]

I keep my keys in a steel key safe which is hidden in a cupboard - I’ve just got into the habit now instead of just dumping them on the side!
Doesn’t help when on holiday I suppose.

[dr_john]

For the very small benefit that comfort access gives compared to the horror of some yobbo criminal making off with my car I really don’t understand why people want it. I mean, what is so difficult about pressing a button on the fob to open the car?

I would certainly regard it as a negative point in buying a used BMW, let alone paying for it as an option on a new car order.

[Ledg]

For the very small benefit that comfort access gives compared to the horror of some yobbo criminal making off with my car I really don’t understand why people want it. I mean, what is so difficult about pressing a button on the fob to open the car?

I would certainly regard it as a negative point in buying a used BMW, let alone paying for it as an option on a new car order.

I’d have to agree. I think I prefer the fact you have to put the key fob in the slot on the e89 as well. At least you know where the key is. Guess if someone wants your car they will still have it either way but it’s not even just the clever thieves that can do, you can just buy something from eBay and you are good to go.

[Ewazix]

For the very small benefit that comfort access gives compared to the horror of some yobbo criminal making off with my car I really don’t understand why people want it. I mean, what is so difficult about pressing a button on the fob to open the car?

I would certainly regard it as a negative point in buying a used BMW, let alone paying for it as an option on a new car order.

+2 on this, I deliberately spec'd my Mini without it, its still a proximity key to start it as in its in your your pocket but I like the security of clicking it to open the car.

Having to stick your keys in a safe/bag so someone can't nick your car remotely with a £100 gadget is a huge step backwards in security, I'm amazed it's not been a recall issue since car security is an EU standard partly driven by safety concerns about hoodie scum in car chases.

[ronk]

I knew a chap who didn’t know he had comfort access on his car - he went back to check he’d locked his car and couldn’t understand why it was unlocked!

He went back to his dealer to have it repaired!

[dr_john]

I’d have to agree. I think I prefer the fact you have to put the key fob in the slot on the e89 as well. At least you know where the key is. Guess if someone wants your car they will still have it either way but it’s not even just the clever thieves that can do, you can just buy something from eBay and you are good to go.

Yes, I was always used to putting the fob in the slot on the E89, no probs, that's where it belonged. Now, on the G29, I can put it anywhere and the car will start. I haven't managed to lose it yet but the day will come

[ronk]

My 335xd is like that - I’ve yet to develop a regime of where I dump the key!
Door pocket/trouser pocket/coat pocket / ash tray - just can’t develop a habit.
Of course that’s all after trying the slot on the dash that not there.

[raven]

Don't really fancy letting someone have it with zero effort. I love all the new tech, but it really does make it easy to steal.

You can disable the comfort access through the idrive system if you dont want it.
Also the key does not send any signals when its not moving for 2 minutes if im not mistaken.

i have had my car parked on the street close to my home for almost a full year now, so far it hasnt been stolen

[Ledg]

Don't really fancy letting someone have it with zero effort. I love all the new tech, but it really does make it easy to steal.

You can disable the comfort access through the idrive system if you dont want it.
Also the key does not send any signals when its not moving for 2 minutes if im not mistaken.

i have had my car parked on the street close to my home for almost a full year now, so far it hasnt been stolen

Thats good to know, thank you.