04-04-2018, 11:16 AM | #23 | ||
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04-04-2018, 11:27 AM | #24 |
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It really is no hardship to press lock/unlock on the keyfob and I'd rather press lock on my keyfob than have to be pressing on the door handle to lock the car, utterly pointless option, given the increased security risks I wouldn't even want it as an option if it was free.
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04-04-2018, 11:37 AM | #25 |
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This is from local police last month (theft in Feb)
https://www.coventrytelegraph.net/ne...evice-14378480 It shows how simple and quick it is. |
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04-04-2018, 11:55 AM | #26 |
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I’m in two minds over this!
I can’t argue against all the evidence of the potential increased security risk ...... But ... As already stated, most options and in fact the BMW its self are not essential. We all have our reasons for buying the car and selected options! My car doesn’t have it, but parents car does. Only a couple of times, the ‘kick’ to open the boot has been really useful. Worth the cost ....... ?? Having had a car stolen by taking the keys from my house, I initially decided not to have a decent car again. I then decided that I wouldn’t let the scum of this world dictate what I owned! I feel the same about CA. Incidentally, the new X3 works on all doors, so I guess it will follow on all models. As I said at the beginning of this ramble, I’m still not sure if I’d spec it, but I wouldn’t reject a car for having it!
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04-04-2018, 12:13 PM | #27 | |
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Not sure I'd option CA on a new car, but as mine had it fitted, is a useful extra. |
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04-04-2018, 12:27 PM | #28 |
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I quite like the CA option. Probably wouldn't have bought this CPO car if it didn't have it. That said, I park inside a locked garage at home. And car theft doesn't seem to be a major issue where I live. I primarily hear about stolen cars when the owner has left the keys IN the vehicle.
It's a low enough risk that the convenience is worth it to me. I never have to fumble for my keys and if my hands are full, a quick kick at the trunk (boot) and she pops open. When my wife was looking at new cars she didn't think she needed it and she said it was useless like some posters above. The car she ultimately chose had it as part of a package that we wanted. She now says it one of her favorite features! |
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04-04-2018, 01:33 PM | #29 | |
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I don't keep my keys in a pouch but they are not near a wall anyway plus I have gap insurance. I do find it very useful and have done for years pre bmw as well. |
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04-04-2018, 01:55 PM | #30 |
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I intentionally spec’d it on my car... part of the comfort pack (with storage pack)
Do i regret it, no if my car is stolen on the drive prob would. Same could be said for my adaptive suspension.... dont regret spec’ing it... if it goes wrong out of warranty prob would. |
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04-04-2018, 06:12 PM | #32 |
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Like most on here I had always thought it to be an utter pointless waste of time.
But my new Merc has it and I actually quite like it! Very convenient to open/close the powered boot with a kick as well as open/close the doors with a simple touch, works really well. But here's the useful bit. When it's parked up outside your house and the most vulnerable, you can DISABLE comfort access by double pressing the lock button on the fob. The indicators flash 4 times to show its disabled. Brilliant feature on the Merc. Of course some will say why bother having it if you are going to disable it, but it's useful for any other time you are out and about with your car. It's only really at home where the key could be near the car that you'd want to disable it.
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04-04-2018, 06:49 PM | #33 |
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It makes it more convenient for you to open your car doors. It makes it more convenient for thiefs to open your car doors. Simples.
With other threads on the forum talking about how to make life more difficult for thiefs with deterrents. All i can say is don't pay to make your car more vulnerable to theft . |
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04-04-2018, 08:03 PM | #34 | |
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If so, could you share what needs to be changed? Cheers in advance...
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04-05-2018, 02:43 AM | #35 |
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You can't draw any conclusions until you see all the figures.
Fact is more cars are stolen without CA than with. People also bang on about their car not being stolen with Autowatch ghost fitted. Well, I have CA and my car is still outside. Yup exactly, stats are fabulous. CA may add a level of vulnerability but key loggers have been around for years and are more common. I think it's a bit potluck if your car does get targeted and that's where insurance comes in. Inconvenient may be but life's a bi*ch sometimes. As for CA as an option. I have it on 2 cars and would not be without it. |
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04-05-2018, 03:06 AM | #36 |
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What gets me is how many people have garages but never use them. I must be the only person on our estate of 300 houses who actually puts their cars into a locked, alarmed garage at night.
PS..the keys still go into a Faraday bag as well. |
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04-05-2018, 04:26 AM | #37 | |
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After that experience, even though we now live in a safe rural area, I just feel a lot more relaxed with our cars garaged. |
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04-05-2018, 05:27 AM | #38 |
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Stealing Comfort Access cars is the fastest growing car theft method and much easier than breaking into a house.
I wouldn't go near Comfort Access unless your car is garaged.
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11-03-2018, 02:54 AM | #40 |
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Hey guys, registered to help out. To look at why it is less secure lets take a look at the remote fob when pressing the buttons. the fobs work by storing 256 encrypted codes all of which can unlock your car, these 256 codes are all ways changing to avoid multiple attacks if an attacker steals one of your codes. Other Fobs use a protection known as a challenge response, where after a button press the car sends back a code sequence to be encrypted and and sent back to the vehicle. where the vehicle know the secret key to decrypt the received code. If the decrypted code matches the original code it unlocks.
Thats fairly secure now days, it would take an attacker thousands of hours to brute force(try every possible code sequence) As far as the comfort access, its a passive system that relies on short range frequencies to trigger and power the fob. the fob contains a code and when in proximity and someone touches the handle, the car sends out the read sequence(times pulses to communicate with the fob, like a nerdy morris code) , if the car recieves the correct code the door opens. Some details may be off because I cannot find the datasheet for BMW's FOBs or their protocol for operation. However this is generally how this works. At DEFCON-23 a group demonstrated stealing a FOB's data to unlock a vehicle. And if its anything like Schlage's (lock company) FOB entry door locks then they can be easily read and duplicated. I know because Im making a RFID tag duplicator for my computer security course. I was thinking about expanding it to try and do my comfort access as well so I have lots of research to do on how comfort access works. I'll let you guys know my overall findings |
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11-03-2018, 03:17 AM | #41 |
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11-03-2018, 03:58 AM | #42 |
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If you can't avoid getting a car with CA, just buy a Faraday pouch to keep the key in. £10 on Amazon. Signal can't be amplified. Simples
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11-03-2018, 04:47 AM | #43 |
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March 2018 build onwards, CA keys go into sleep mode when left still so can't be relayed. BMW also offer to supply these safe keys to owners of older CA cars at a reduced price. There was a thread about it on here.
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11-03-2018, 05:56 AM | #44 | |
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It's getting out of control though now, to many of these thieves think they're playing a game of PlayStation grand theft auto in real life, homeowners need to be able to use any means possible to defend their family in their home without fear of prosecution. |
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