Dash panel Question

the dink · 10-07-2013, 09:42 PM

Too the right of my convertable Top UP or DOWN buttons are two other buttons or lights I don't know what there for. One round button says DTC the other shows a flat tire but mine has NO TPMS valve stems which I know to be correct because I just replaced the tires myself. Could someone shed some light on what those buttons OR lights are there for ??? thx

gas-can · 10-07-2013, 09:55 PM

Hi Randy,

There are no discrete tpms in the pre facelift cars (correction -2006 included (mine don't have them either). I think the discrete units showed up in 2007?). The wheel pressure is cleverly calculated via the abs sensors, which count the rotation of the wheels. If the pressure dips, the rotational speed will change and the computer will indicate that as an air pressure loss.

The DTC is the traction control. Press it once to enable a sportier version of the traction control that will allow a bit more slippage amongst other things before the comp reigns things in. Holding it down will completely disable the TC- then it's up to you to not end up in a ditch

A quick search on those buttons will bring up some more info... Also recommend downloading an e copy of the manual if you don't have a physical copy. Really explains all the cars functions!

psygnosis · 10-08-2013, 01:00 AM

http://www.bmwusa.com/Standard/Content/Owner/dgh.aspx

10-07-2013, 09:42 PM	#1
the dink Private First Class 10 Rep 104 Posts Drives: 2005 Z4 Join Date: Jul 2013 Location: Idaho iTrader: (0)	Dash panel Question Too the right of my convertable Top UP or DOWN buttons are two other buttons or lights I don't know what there for. One round button says DTC the other shows a flat tire but mine has NO TPMS valve stems which I know to be correct because I just replaced the tires myself. Could someone shed some light on what those buttons OR lights are there for ??? thx
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10-07-2013, 09:55 PM	#2
gas-can Second Lieutenant 25 Rep 204 Posts Drives: 2006 3.0i Roadster Join Date: Oct 2012 Location: USA iTrader: (0)	Hi Randy, There are no discrete tpms in the pre facelift cars (correction -2006 included (mine don't have them either). I think the discrete units showed up in 2007?). The wheel pressure is cleverly calculated via the abs sensors, which count the rotation of the wheels. If the pressure dips, the rotational speed will change and the computer will indicate that as an air pressure loss. The DTC is the traction control. Press it once to enable a sportier version of the traction control that will allow a bit more slippage amongst other things before the comp reigns things in. Holding it down will completely disable the TC- then it's up to you to not end up in a ditch A quick search on those buttons will bring up some more info... Also recommend downloading an e copy of the manual if you don't have a physical copy. Really explains all the cars functions!
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10-08-2013, 01:00 AM	#3
psygnosis Major 23 Rep 1,034 Posts Drives: '04 Z4 3.0i Sport Join Date: Nov 2008 Location: WA iTrader: (0)	http://www.bmwusa.com/Standard/Content/Owner/dgh.aspx __________________ Straightaways are for fast cars, Corners are for fast drivers.
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