12-19-2015, 02:10 AM | #1 |
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CBS - Front Brakes
The mileage remaining on my front brakes seems to be dropping really quickly at the moment. The CBS in iDrive has dropped from 9000 to 4500 is a short time and I've certainly not driven 4500miles. I have driven 22000 miles so far. I don't consider myself a heavy braker. I do wonder about The legitimacy of CBS and if it is really as accurate as BMW suggest.
If I was to change the pads myself, would the CBS automatically reset to a greater value or does it need to be reset by a technician? If the latter, surely it cannot be a CBS system as it hasn't recognised the new pads. And if so is CBS based rather on time and if you have a service package or not? My previous two cars which I had for 2 and 3 years respectively never got within 10000miles of a brake change with 30000+ miles on the clock, but I did have a service package that covered them. Equally, I only had the oil changed once during the time of ownership for both. On my current vehicle a 2014 F11 2.0d I have had one oil change and I am only 8000 away from a second oil change. I don't have a service package as going off my past two cars I found it wasn't worth doing from a cost point of view. Maybe I'm being cynical but I'm starting to doubt the validity of the whole CBS system and depending what service packages you have determines by a computer program what the timeline is for the servicing in the favour of BMW on the basis of increasing their revenues. |
12-19-2015, 03:51 AM | #2 |
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You can easily reset all the service intervals yourself:
And regarding the oil service, it goes down quicker if you do short journeys or drive the car hard etc. |
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12-19-2015, 04:38 AM | #3 | |
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12-19-2015, 05:02 AM | #4 | |
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The 'condition based' is worked out on use and conditions the car has gone through, so whether the car is driven hard or gently, ambient temps the car has been subjected to, number of times and how hard you've braked etc. The car does not have a scientific probe in the oil to determine it's condition, or a camera & laser in the wheel arches to measure exactly how much pad material is left! |
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12-19-2015, 05:30 AM | #5 | ||
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12-19-2015, 05:37 AM | #6 | |
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12-19-2015, 05:47 AM | #7 | ||
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http://www.meeknet.co.uk/E64/oil-sensors.pdf |
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12-19-2015, 06:05 AM | #8 | |||
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Maybe these new sensors are only one certain newer engines? : |
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12-19-2015, 06:15 AM | #9 | ||||
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12-19-2015, 07:27 AM | #10 | |||||
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My car seems pretty good, both oil services have been after 17k which with the driving I do I think it's right. The rear brakes were way out though, jumped one day from saying 15k left to suddenly 1.7k left!! |
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07-04-2016, 05:30 PM | #11 |
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Well I've just had my car serviced at 35000 miles and got the dealership to check my brakes pads as the fronts have been showing 3200 miles for sometime and the rears showing 10000. They reported I had the following left - Fronts 6mm 58 % and rears 9mm 90% which leads me to conclude the miles showing as remaining in the idrive is way off the mark.
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