Help!! DTC keeps activating!

wagonmaster · 05-18-2008, 09:33 AM

I just switched from runflats to conti extreme contacts and my DTC keeps coming on. Did the TPMS reset several times but it still comes on, especially in sweeping curves. Running stock wheels, so not sure what to do. I've got the staggered xi setup.

NPDAN · 05-18-2008, 09:49 AM

What do you mean, your DTC keeps coming on?

wagonmaster · 05-18-2008, 10:02 AM

Hey NPDAN! We were on the same boat from Germany!
The DTC kicks on when passing and cuts the throttle. can happen at 35 mph or 70 mph.

spacedogg · 05-18-2008, 11:12 AM

Something is making the car think that one of the wheels is slipping or moving at a slower speed than the rest of the car...

Check tire pressure. If tires are unidirectional, check to ensure tires are installed correctly (outside indeed on the outside)....

Hmmm....

ubern00b · 05-18-2008, 11:48 AM

DTC actually allows wheel slip to occur, and only works up until 40MPH to my best knowledge.

Dubbedoutbimmer · 05-18-2008, 11:51 AM

hmm you driving this thing hard when this occurs? I can only think these tires are breaking loose mad easy???

Revlis · 05-18-2008, 12:44 PM

Sounds like perhaps your tire pressure is really freaking low??? Call me nuts but when your Traction Control keeps intervening and you're busy resetting the TPMS that maybe, just maybe there's a freaking connection?

Just a thought...

Revlis · 05-18-2008, 12:46 PM

Quote:

Originally Posted by spacedogg

Something is making the car think that one of the wheels is slipping or moving at a slower speed than the rest of the car...

Check tire pressure. If tires are unidirectional, check to ensure tires are installed correctly (outside indeed on the outside)....

Hmmm....

Yeah, Whatever is going on Bro, you need to check it out sooner rather than later...

E90330iS · 05-18-2008, 01:11 PM

See if the tread is going the right direction, tire pressure, and if the button is pressed from the inside..

wagonmaster · 05-18-2008, 09:04 PM

Thanks for all the replies and suggestions. I triple checked the tire pressure and TPMS and the DTC kicked in while going 60 mph. The tires look to be mounted properly in terms of rotation markers on sidewalls. Only thing I can think is the tires may be defective?

uberschnell · 05-19-2008, 11:38 PM

Or one of your tpms sensors was damaged in the change.

wagonmaster · 05-25-2008, 09:18 AM

Just a quick follow-up to my DTC error problem. Did some adjustments to the tire pressure and finally got the TPMS system to not activate the DTC as much, but it did annoyingly still kick in even when running the recommended tire pressure on the inner door jamb. It was the worst when running 4 psi higher than recommended or 2 psi less than recommended. The front tires also had a weird, "squirrely" feeling in turns. The scariest issue was losing throttle response on I-5 in fast-moving, busy traffic.

The TPMS sensors upon inspection were fine. I think there may have been something wrong with the tires. Regardless, I swapped them out with Goodyear Eagle F1s and all TPMS and ride issues have disappeared.

Many thanks to all who offered helpful advice!

Calgary Agent · 05-25-2008, 09:24 AM

What size tires did you mount (F & R).

If the diameter of your front vs rear is > 0.8%, it may result in DTC issues (as well as possible issues with the AWD system).

If the tires are all the same size, unless there's a massive difference in tire pressure (F vs R) you shouldn't have any DTC issues *as long as you've reset your TPMS*

Seeing how you no longer have issues after changing the tires, I'd expect the tires were out of spec (wrong size).

wagonmaster · 05-25-2008, 09:30 AM

Good morning!

I have the stock 161 rims. I replaced the stock runflat Potenzas with the exact same size non-runflat Conti ExtremeContacts. I also reset the TPMS system with each change in tire pressure. I find it odd that a tire that others have used with no issues would cause DTC errors so consistently. That's why I believe it must have been a manufacturing issue with the tires that I happened to get.

05-18-2008, 09:33 AM	#1
wagonmaster Private First Class 4 Rep 103 Posts Drives: 328xi Touring Join Date: Feb 2007 Location: Seattle iTrader: (0)	Help!! DTC keeps activating! I just switched from runflats to conti extreme contacts and my DTC keeps coming on. Did the TPMS reset several times but it still comes on, especially in sweeping curves. Running stock wheels, so not sure what to do. I've got the staggered xi setup.
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05-18-2008, 09:49 AM	#2
NPDAN Colonel 95 Rep 2,573 Posts Drives: AW DCT M3 Join Date: Feb 2007 Location: So.Cal iTrader: (7) Garage List 2008 E92 M3 [8.00] 07' E92 335i [0.00]	What do you mean, your DTC keeps coming on? __________________
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05-18-2008, 10:02 AM	#3
wagonmaster Private First Class 4 Rep 103 Posts Drives: 328xi Touring Join Date: Feb 2007 Location: Seattle iTrader: (0)	Hey NPDAN! We were on the same boat from Germany! The DTC kicks on when passing and cuts the throttle. can happen at 35 mph or 70 mph.
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05-18-2008, 11:12 AM	#4
spacedogg Colonel 195 Rep 2,816 Posts Drives: Debadged Join Date: Aug 2006 Location: Vancouver, BC iTrader: (0)	Something is making the car think that one of the wheels is slipping or moving at a slower speed than the rest of the car... Check tire pressure. If tires are unidirectional, check to ensure tires are installed correctly (outside indeed on the outside).... Hmmm....
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05-18-2008, 11:48 AM	#5
ubern00b First Lieutenant 5 Rep 370 Posts Drives: 06 325i Join Date: Jan 2008 Location: tn iTrader: (1)	DTC actually allows wheel slip to occur, and only works up until 40MPH to my best knowledge.
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05-18-2008, 11:51 AM	#6
Dubbedoutbimmer Banned 43 Rep 1,310 Posts Drives: 335XI Coupe Loaded w/body kit Join Date: Feb 2008 Location: Boston iTrader: (-1)	hmm you driving this thing hard when this occurs? I can only think these tires are breaking loose mad easy???
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05-18-2008, 12:44 PM	#7
Revlis Now With 33% MORE Sarcasm Free! 157 Rep 3,462 Posts Drives: M4 i3 X3 Join Date: Feb 2007 Location: Phoenix AZ iTrader: (0)	Sounds like perhaps your tire pressure is really freaking low??? Call me nuts but when your Traction Control keeps intervening and you're busy resetting the TPMS that maybe, just maybe there's a freaking connection? Just a thought... __________________ A BMW is Just a Car, it doesn't make you smart, handsome, clever, better, cool, or wealthy.
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05-18-2008, 01:11 PM	#9
E90330iS Major General 143 Rep 6,333 Posts Drives: BMW M4 Join Date: Jan 2006 Location: Arcadia, California iTrader: (56) Garage List 2006 330i [0.00]	See if the tread is going the right direction, tire pressure, and if the button is pressed from the inside.. __________________ 2017 BMW M4 DCT Lease Transfer: https://f80.bimmerpost.com/forums/sh...8#post23736398
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05-18-2008, 09:04 PM	#10
wagonmaster Private First Class 4 Rep 103 Posts Drives: 328xi Touring Join Date: Feb 2007 Location: Seattle iTrader: (0)	Thanks for all the replies and suggestions. I triple checked the tire pressure and TPMS and the DTC kicked in while going 60 mph. The tires look to be mounted properly in terms of rotation markers on sidewalls. Only thing I can think is the tires may be defective?
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05-19-2008, 11:38 PM	#11
uberschnell Brigadier General 675 Rep 4,080 Posts Drives: Wide Body 1 Join Date: Mar 2007 Location: Bay Area iTrader: (48)	Or one of your tpms sensors was damaged in the change.
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05-25-2008, 09:18 AM	#12
wagonmaster Private First Class 4 Rep 103 Posts Drives: 328xi Touring Join Date: Feb 2007 Location: Seattle iTrader: (0)	Just a quick follow-up to my DTC error problem. Did some adjustments to the tire pressure and finally got the TPMS system to not activate the DTC as much, but it did annoyingly still kick in even when running the recommended tire pressure on the inner door jamb. It was the worst when running 4 psi higher than recommended or 2 psi less than recommended. The front tires also had a weird, "squirrely" feeling in turns. The scariest issue was losing throttle response on I-5 in fast-moving, busy traffic. The TPMS sensors upon inspection were fine. I think there may have been something wrong with the tires. Regardless, I swapped them out with Goodyear Eagle F1s and all TPMS and ride issues have disappeared. Many thanks to all who offered helpful advice!
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05-25-2008, 09:24 AM	#13
Calgary Agent Captain 21 Rep 703 Posts Drives: '11 550i Join Date: Oct 2007 Location: Calgary, Canada iTrader: (0) Garage List 2011 F10 550i [0.00]	What size tires did you mount (F & R). If the diameter of your front vs rear is > 0.8%, it may result in DTC issues (as well as possible issues with the AWD system). If the tires are all the same size, unless there's a massive difference in tire pressure (F vs R) you shouldn't have any DTC issues as long as you've reset your TPMS Seeing how you no longer have issues after changing the tires, I'd expect the tires were out of spec (wrong size). __________________ '11 550i \| AT \| Dark Graphite on Black
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05-25-2008, 09:30 AM	#14
wagonmaster Private First Class 4 Rep 103 Posts Drives: 328xi Touring Join Date: Feb 2007 Location: Seattle iTrader: (0)	Good morning! I have the stock 161 rims. I replaced the stock runflat Potenzas with the exact same size non-runflat Conti ExtremeContacts. I also reset the TPMS system with each change in tire pressure. I find it odd that a tire that others have used with no issues would cause DTC errors so consistently. That's why I believe it must have been a manufacturing issue with the tires that I happened to get.
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