Bad dme what are my option?

FrankyGTR · 10-31-2014, 04:57 PM

after diagnostics shop says i need a new dme and its around 16-1700$ from the dealer,is that my only option?any help is appreciated as i dont even have enough money to fix the car right now.

nikitino25 · 11-02-2014, 11:16 AM

Pretty sure you can have it repaired......Do a search here or just a google search.....

glachhman · 11-02-2014, 02:57 PM

what are the codes?

kseyfi86 · 11-03-2014, 01:05 PM

If the hardware is not damaged I think it's fine. I had my DME flashed back to stock for I believe 75 from an independent bmw tech.

e90TiAg335i · 11-03-2014, 10:51 PM

If the mosfets are fried, they can be replaced pretty easily.

musc · 11-04-2014, 02:12 AM

Post what codes you are getting. If you are getting a 30BB or 30AA, then it's the MOSFETs and repairable as others have mentioned. There is an excellent post here:

http://www.e90post.com/forums/showthread.php?t=734162

If you are not up to repairing it yourself, a few of my friends locally found a local TV repair guy to replace the MOSFET for 20-30 bucks. Took him all of 10 minutes to do it. The MOSFETs themselves are relatively cheap as well.

badass335 · 11-04-2014, 08:24 AM

What year is your car? What's your mileage? Depending on that, you might have emissions warranty still on it and as the dme is covered by that, you could get it for free from Bmw. Double check your manual to verify. Up here in Canada, we have 8year/130000km emissions warranty. I just had mine replaced 8 months ago under that. Bmw honoured that and I was out of the regular warranty.

itsstock02 · 11-04-2014, 08:30 AM

What causes the mosfets to go bad and how common is this problem?

BMW-SRT · 11-04-2014, 11:46 AM

Quote:

Originally Posted by musc

Post what codes you are getting. If you are getting a 30BB or 30AA, then it's the MOSFETs and repairable as others have mentioned. There is an excellent post here:

http://www.e90post.com/forums/showthread.php?t=734162

If you are not up to repairing it yourself, a few of my friends locally found a local TV repair guy to replace the MOSFET for 20-30 bucks. Took him all of 10 minutes to do it. The MOSFETs themselves are relatively cheap as well.

The same thing happened to me, the day BMW was installing and updating the new DME on my car, my friend found the above link on how to fix my stock one, i was like DAM!!!! i could have saved myself $2k...

musc · 11-04-2014, 01:37 PM

Quote:

Originally Posted by itsstock02

What causes the mosfets to go bad and how common is this problem?

Not sure why they go bad but its more common in 07s and some early build 08s. There was actually a TSB from BMW for the issue at one point. Three of my friends have had the same issue in recent months.

FrankyGTR · 11-11-2014, 04:56 PM

UPDATE

DME is fine the issues was diagnosed by BMW tech to be some loose pins in the dme connectors.and a bad exhaust cam sensor so the car is now running.

FrankyGTR · 11-11-2014, 04:57 PM

Quote:

Originally Posted by badass335

What year is your car? What's your mileage? Depending on that, you might have emissions warranty still on it and as the dme is covered by that, you could get it for free from Bmw. Double check your manual to verify. Up here in Canada, we have 8year/130000km emissions warranty. I just had mine replaced 8 months ago under that. Bmw honoured that and I was out of the regular warranty.

yep thats exactly why i went to the dealer because it was still covered,i had no idea.

335NJ · 11-11-2014, 05:11 PM

Quote:

Originally Posted by FrankyGTR

UPDATE

DME is fine the issues was diagnosed by BMW tech to be some loose pins in the dme connectors.and a bad exhaust cam sensor so the car is now running.

Nice!

Miller335 · 11-11-2014, 06:27 PM

Quote:

Originally Posted by FrankyGTR

UPDATE

DME is fine the issues was diagnosed by BMW tech to be some loose pins in the dme connectors.and a bad exhaust cam sensor so the car is now running.

Nice!

N3m3sis · 11-11-2014, 07:02 PM

Good to hear!

FrankyGTR · 11-12-2014, 08:12 PM

this was cause during the procede re installation,now im scared to try to re install dammmit lol

N3m3sis · 11-12-2014, 08:24 PM

Quote:

Originally Posted by FrankyGTR

this was cause during the procede re installation,now im scared to try to re install dammmit lol

Cobb ftw!

10-31-2014, 04:57 PM	#1
FrankyGTR Second Lieutenant 20 Rep 195 Posts Drives: N54 335i 6MT-R32GTR Join Date: May 2013 Location: Montreal iTrader: (0)	Bad dme what are my option? after diagnostics shop says i need a new dme and its around 16-1700$ from the dealer,is that my only option?any help is appreciated as i dont even have enough money to fix the car right now. __________________ 2008 335i coupe 6MT BOOST FIEND
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11-02-2014, 11:16 AM	#2
nikitino25 Captain 91 Rep 817 Posts Drives: '07 E92 335i Join Date: Dec 2011 Location: Missouri iTrader: (2)	Pretty sure you can have it repaired......Do a search here or just a google search.....
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11-02-2014, 02:57 PM	#3
glachhman Banned 44 Rep 692 Posts Drives: '07 335i e90 Join Date: Mar 2013 Location: Queens, NY iTrader: (0)	what are the codes?
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11-03-2014, 01:05 PM	#4
kseyfi86 Private First Class 15 Rep 156 Posts Drives: 2007 e92 335i Join Date: Apr 2014 Location: Orange County, CA iTrader: (0) Garage List 2007 BMW e92 335i [10.00]	If the hardware is not damaged I think it's fine. I had my DME flashed back to stock for I believe 75 from an independent bmw tech. __________________ BMS 451whp/489wtq @ EAS
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11-03-2014, 10:51 PM	#5
e90TiAg335i Major 127 Rep 1,151 Posts Drives: 10 e90 335i Join Date: Mar 2010 Location: jacksonville, FL iTrader: (10) Garage List 2010 e90 335i [7.00]	If the mosfets are fried, they can be replaced pretty easily. __________________ JB4, DP, VMR V710, Sonic Tuning S1 coilovers, Hybrid Ovations, Soundsplinter 10" and Zapco DC Ref amps
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11-04-2014, 02:12 AM	#6
musc Free T_e_r_r_Y :) 223 Rep 1,706 Posts Drives: X3MC, Audi TTRS MK3, 335is DCT Join Date: Dec 2006 Location: Charleston, SC iTrader: (9) Garage List 2023 BMW X3MC [10.00] 2011 BMW 335is [10.00]	Post what codes you are getting. If you are getting a 30BB or 30AA, then it's the MOSFETs and repairable as others have mentioned. There is an excellent post here: http://www.e90post.com/forums/showthread.php?t=734162 If you are not up to repairing it yourself, a few of my friends locally found a local TV repair guy to replace the MOSFET for 20-30 bucks. Took him all of 10 minutes to do it. The MOSFETs themselves are relatively cheap as well.
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11-04-2014, 08:24 AM	#7
badass335 Lieutenant Colonel 116 Rep 1,948 Posts Drives: 2017 540i Xdrive Join Date: Jul 2007 Location: Surrey, BC iTrader: (10)	What year is your car? What's your mileage? Depending on that, you might have emissions warranty still on it and as the dme is covered by that, you could get it for free from Bmw. Double check your manual to verify. Up here in Canada, we have 8year/130000km emissions warranty. I just had mine replaced 8 months ago under that. Bmw honoured that and I was out of the regular warranty.
	Appreciate 0 Quote

11-04-2014, 08:30 AM	#8
itsstock02 First Lieutenant 21 Rep 326 Posts Drives: 2008 335i Join Date: Aug 2013 Location: MI iTrader: (2)	What causes the mosfets to go bad and how common is this problem?
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11-11-2014, 04:56 PM	#11
FrankyGTR Second Lieutenant 20 Rep 195 Posts Drives: N54 335i 6MT-R32GTR Join Date: May 2013 Location: Montreal iTrader: (0)	UPDATE DME is fine the issues was diagnosed by BMW tech to be some loose pins in the dme connectors.and a bad exhaust cam sensor so the car is now running. __________________ 2008 335i coupe 6MT BOOST FIEND
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11-11-2014, 07:02 PM	#15
N3m3sis Captain 30 Rep 606 Posts Drives: 335i Join Date: Sep 2013 Location: In a car iTrader: (0)	Good to hear!
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11-12-2014, 08:12 PM	#16
FrankyGTR Second Lieutenant 20 Rep 195 Posts Drives: N54 335i 6MT-R32GTR Join Date: May 2013 Location: Montreal iTrader: (0)	this was cause during the procede re installation,now im scared to try to re install dammmit lol __________________ 2008 335i coupe 6MT BOOST FIEND
	Appreciate 0 Quote

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