I noticed M5s doesnt have Run Flat Tires(@ least the 00-01-02s etc), so Im curious as to why they have tire pressure monitor system.
a. Where is the sensor located?
b. What do you do when you get a "TIRE DEFECT" idiot light on the dash board, w/c I had but went away later that day. I checked the tires and all seems ok!?
I noticed M5s doesnt have Run Flat Tires(@ least the 00-01-02s etc), so Im curious as to why they have tire pressure monitor system.
a. Where is the sensor located?
b. What do you do when you get a "TIRE DEFECT" idiot light on the dash board, w/c I had but went away later that day. I checked the tires and all seems ok!?
Anyone
The ABS sensors monitor tire rotation after the system is "set". If then compares values; if a tire goes down by a few pounds, the rotation changes enough to tell the computer to trip the light. You have to manually inspect the tires to see which one is down.
Regards,
Jerry
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'01 Black/caramel
Dinan Stage 3 suspension, SS jet coated headers, ESS SC kit, open brake ducts, Hamann front splitters, TEC cupholder, U.S.(Euro style) tilt/slide armrest, 6k HID fogs, 6k super white low beams, V1/Stealth1, dual head LI, 2.65 diff w/40% lockup/2x dynamic, compact spare, Euro trailer hitch, Mocal oil cooler, ACS type rear spoiler, Rogue custom SSK and tranny mounts, ST 355 BBK (fronts), BP sway bar brackets, Bluetooth retrofit
I noticed M5s doesnt have Run Flat Tires(@ least the 00-01-02s etc), so Im curious as to why they have tire pressure monitor system.
a. Where is the sensor located?
b. What do you do when you get a "TIRE DEFECT" idiot light on the dash board, w/c I had but went away later that day. I checked the tires and all seems ok!?
Anyone
The tire defect indicator utilizes the ABS sensors at each wheel. The sensors "look" for a difference in the speed of wheel rotation comparing one wheel to the others. When a tire loses air pressure, the circumference of the tire decreases and the speed of rotation increases thereby telling that sensor that that tire has lost pressure. So every time that you adjust the pressure in your tires, you need to reset the tire defect system.
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Nick
2001 E39///M5: Imola Red/Caramel/Walnut
PowerChip Gold 91
9.5x18 inch OE Rims On All Four Corners
275/35 Michelin PS2's
Brake Ducts and M Technik Splitter
UUC EVO3 Short Shifter and Double Shear Selector Rod
Rogue Transmission Mounts
BeastPower Sway Bar Brackets
Valentine One and Stealth One
Titanium Pedals
Angel iBright V3.0
Sylvania Silverstar High Beams and Fog Lamps
Platinumvision 2.0 Bulbs
Tinted Windows
"Spare" 8x18 inch OEM Rim and Tire With Jack and All Trunk Lid Tools
M5 Trunk Mat
Trunk Storage Bin
M License Plate Bracket
And the reason it's there in the first place is because the car does NOT have run flat tires AND does NOT come with a spare. All you get instead is an air compressor and bag of tire sealant.
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Need4Spd
'01 M5/UUC SSK + Rogue WSR/RE Tranny Mounts+Royal Purple Synchromax/Axxis ULT Pads/StopTech SS Lines/TC Design from BeastPower Anti-roll Bar Brackets/Dinan LtWtFlywheel and Stage 3 suspension/Goodyear F1 Asymmetrics/Vines thrust arms/IATS relocation/10w-60 oil/hardwired Escort 9500i/Euro Armrest/TEC Cupholder/IceLink/PowerChip 91 Gold/TUBIs!/Strong Strut/BSW Stage 1/BT/Angel iBrights 3.0
'05 M3 Imola Cabrio 6MT, Nav, HK
"Is it the sounds that make a BMW a BMW? A BMW is designed to be heard, felt, experienced. So our engines sing. Our steering talks back. And we insist on offering manual transmissions in nearly all our models for drivers who crave them. The result is an almost telepathic oneness with the car. Just as surely as you can hear a BMW, a BMW hears you."
Your manual tells you how to reset the tire pressure to get rid of the tire defect warning. If you can't find it let me know--from memory all you do is set the tire pressure manually as desired then turn the ignition key to 1 or 2, then press and hold the tire pressure switch thing to the right of the steering column.
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Kniks
2000 Antracite M5
UUC SSK, DSSR
Lidatek LE30 front and rear
Valentine1 hardwired
I have noted that as tires approach the end of their safe use, the tire defect light comes on more often, even if all four tires have the same air pressure.
All in all I have not found the tire pressure monitoring to be of much value.
I have noted that as tires approach the end of their safe use, the tire defect light comes on more often, even if all four tires have the same air pressure.
All in all I have not found the tire pressure monitoring to be of much value.
Steve
00 m5
All you need to do is recalibrate the system. Your tires are worn, causing them to rotate more (like a tire that doesn't have as much air in it), and fooling the tire defect warning system into thinking there is a problem. Adjust or verify the pressures are to your desired levels, and then calibrate the system to this level as explained in the manual. You won't get any more incorrect tire defect warnings.
I believe this TIRE DEFECT light was triggered by my rotating the wheels left to right that morning before i went to work. For my PPI indicated and showed that the tires rotational direction thread was installed backwards.
Thats my guess on why it got a fluke.
So, i the future how do i recalibrate again the system after i air it up?
and how do I turn off that false alarm, im kinda confuss for the owners manual was missing when I bought it.
anyone?
I believe this TIRE DEFECT light was triggered by my rotating the wheels left to right that morning before i went to work. For my PPI indicated and showed that the tires rotational direction thread was installed backwards.
Thats my guess on why it got a fluke.
So, i the future how do i recalibrate again the system after i air it up?
and how do I turn off that false alarm, im kinda confuss for the owners manual was missing when I bought it.
anyone?
After adjusting pressures and having tires mounted, etc.
Get in. Put your seatbelt on, or you won't see the message, and turn the ignition to position 1. Press the tire defect switch in until you see the message of Calibration in the OBC display over the steering wheel. Start the car and drive. It takes about 10 minutes of driving, and there is no confirmation. It will calibrate until it is successful without further notification. You shouldn't have any more false alarms, but you did have a tire defect. It was mounted improperly. Without the monitor, you may not have known about it.
Linear Mode
