[simonsingh]

Originally Posted by doughboy

Thing is with moving the socket a few inches, it will just be tucked away behind the trim panel without some serious wiring mods to move it way away, so any theif would just rip of the kick panel in 1 second to find it before legging it if it really was gone. (and its a pain when you need it)


Another idea:

Swap a few pins around in your port socket, Swap over CAN High and Low (pins 6 & 15) would be a good start, or move them to another spare position. (anywhere you like).

Then make a short extension lead (male to female) and wire that in such a way as to swap back the pin allocation. This means your car can only be connected to with your special lead put in before the reader.

About £10 for the bits?


Or for a quick fix, just remove pin 6 or 15 and tuck it back in the loom out of site, no one can talk to the car via CAN protocol and do any harm. Or like I said earlier cut that colour coded wire further back and put in a hidden switch to make or break it.

These little devices are able to work out which wire is which (as the OBD pin config changes from year to year/model to model), and then work according. Any swapping of the wires is just a waste of time.
CANBus relies on EITHER of the 2 communication wires, knocking one of them out will also do nothing for security.

Originally Posted by Billyray911

The below is "stolen" from pistonheads and is in relation to thefts via obd...
BMW fixed the issue back in 2010, then another way in was found which has since been addressed in v45 and onward firmware. How long it will take the scummers to hack back in is open to question.

The chances of BMW doing a recall are very slim. A software update takes most of the day to complete and costs up to £200. BMW don't like flashing the firmware if they can help it because of the risk in frying the Cas unit.

If you are still under warranty and you have a problem with your bluetooth not working properly for example. The whole car will get a firmware update under warranty. This would include the Cas module.

The issue was never fixed, it's due to the lack of encryption between each node (module). BMW implemented a encryption method in the new F cars, which has since been hacked (as the unlock protocol must be available to all dealers etc etc).

Updating will depend on how many modules need updating, but will be a maximum of a full work day on OBD, much less if the MOST ring is used as a gateway.

The CAS is at no risk of being fried with an update. None at all.

The CANBus system is also very sensitive to any wire changes or breaks. Once the wire is broken and soldered, you're going to have endless problems as the solder itself changes the resistance of the part of the wire.
Anything do to with switches, or soldering CANBus wires is going to be bad news.