FTM issues...
09-30-2010, 06:47 PM
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I did a search and found all sorts of info, but not exactly what I was looking for. I picked my new 545 up tonight and twice on the way home (about 200 miles) it said I had a tire puncture and a flat. I've got aftermarket 20's on it, so it might have something to do with that. Is there a way to turn it off? I'm not on runflats anyway and would notice if a tire was low, and especially if I got a flat. I would rather not see this thing pop up.
09-30-2010, 07:03 PM
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Tire pressure is good. It went off once and then I reset it. Then it went off again and I reset it again. It hasn't gone off again, but I'm assuming it will. I know the BMW dealer had 2 tires replaced before I picked it up (1 nail and 1 screw).
09-30-2010, 07:14 PM
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It was saying I had a complete flat. Got home and had exactly 40 lbs in each tire, so it's definitely some kind of issue. Just wondering if there is a way to turn it off. I know I can't do it, but can the dealer do it?
09-30-2010, 07:19 PM
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My Ride: e60
ftm only has 2 values
:l
u either have a tire full of air or u have a flat one
regardless if u only lose 10 psi and ur tire still is driveable
it will say u have a flat
just how it is
its not tpms which offers a more accurate reading
:l
u either have a tire full of air or u have a flat one
regardless if u only lose 10 psi and ur tire still is driveable
it will say u have a flat
just how it is
its not tpms which offers a more accurate reading
09-30-2010, 08:11 PM
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My Ride: 2007 530d M Sport Automatic, Le Mans Edition.Le Mans Blue Individual Paint Special, Syrah Blue Individual Leather, Piano Black Individual Interior Trim, Front seat heating,M Double Spoke 172 19
Could be your tyre sizes.If you have a staggered set up the revs/mile of the front and rears should be closely matched,if not the FTM will assume that you have a flat.
09-30-2010, 09:33 PM
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My Ride: 2007 530d M Sport Automatic, Le Mans Edition.Le Mans Blue Individual Paint Special, Syrah Blue Individual Leather, Piano Black Individual Interior Trim, Front seat heating,M Double Spoke 172 19
If,for example,the front size has a diameter which is not the same as the rear (within a small tolerance) then the front and rear wheel revs/mile will differ enough to be seen by the FTM as a drop in pressure .As far as I am aware,the ABS sensors on each wheel provide the signals for the FTM.
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