DME warning...

335i101 · 08-24-2011, 09:52 PM

Recently my car started surging and was undrivable...I was in northern WI and no dealerships anywhere. I had it towed 220 miles to my local dealership.---insurance covered it

After there inspection they said I needed a new DME and with parts and labor it was $1900.00.

I had my suspicions and had tje car towed toy house.

Ran some tests and found it was a blown fuse in the ECU box, replaced and car is running perfect.....just a heads up to all!

cwn23 · 08-24-2011, 09:56 PM

Quote:

Originally Posted by 335i101

Recently my car started surging and was undrivable...I was in northern WI and no dealerships anywhere. I had it towed 220 miles to my local dealership.---insurance covered it

After there inspection they said I needed a new DME and with parts and labor it was $1900.00.

I had my suspicions and had tje car towed toy house.

Ran some tests and found it was a blown fuse in the ECU box, replaced and car is running perfect.....just a heads up to all!

Can you elaborate on what blown fuse you are speaking of which caused your car to surge and undrivable?

Jeff@TopGearSolutions · 08-24-2011, 10:02 PM

Quote:

Originally Posted by 335i101

Recently my car started surging and was undrivable...I was in northern WI and no dealerships anywhere. I had it towed 220 miles to my local dealership.---insurance covered it

After there inspection they said I needed a new DME and with parts and labor it was $1900.00.

I had my suspicions and had tje car towed toy house.

Ran some tests and found it was a blown fuse in the ECU box, replaced and car is running perfect.....just a heads up to all!

Wow. Nice move!

335i101 · 08-24-2011, 10:21 PM

I was driving up north in tje middle of nowhere....I went WOT and heard a loud "pop" tje car immediately started surging and was undriveable.

First I checked all the fuses in the glove box and they were good...then there were 2 fuses in the ecu, both good...about the time I was ready to give up I located 5fuses packaged together in the ecu compartment....one of those 30amp fuses were shot.

Quote:

Originally Posted by cwn23

Quote:

Originally Posted by 335i101

Recently my car started surging and was undrivable...I was in northern WI and no dealerships anywhere. I had it towed 220 miles to my local dealership.---insurance covered it

After there inspection they said I needed a new DME and with parts and labor it was $1900.00.

I had my suspicions and had tje car towed toy house.

Ran some tests and found it was a blown fuse in the ECU box, replaced and car is running perfect.....just a heads up to all!

Can you elaborate on what blown fuse you are speaking of which caused your car to surge and undrivable?

EastBayE90 · 08-24-2011, 10:51 PM

Nice find so that fuse image I gave you worked out congrats nice save!

hotrod182 · 08-25-2011, 08:30 AM

Wow, 30amps would be a major amperage short for the DME. What else is on that fuse circuit?

secretsquirrel · 08-25-2011, 09:09 AM

Be sure to let the stealership know what really happened. They don't call them stealerships for nothing.

cwn23 · 08-25-2011, 09:31 AM

Quote:

Originally Posted by hotrod182

Wow, 30amps would be a major amperage short for the DME. What else is on that fuse circuit?

+1 There has to be something that caused the fuse to blow in the first place...30 amp fuse to blow cant be just from being an old fuse!

lonestar22 · 08-25-2011, 12:27 PM

yeah im pretty sure it blew because something is wrong. thats why the dealer recommended replacement

335i101 · 08-25-2011, 05:59 PM

The fuse blowing was a fault of my own, a wire nut came off from my meth setup and shorted out. I told the stealership I had a meth setup.

(although I removed it before it was towed to them as I was trying to fix the car prior to the tow...)

Quote:

Originally Posted by lonestar22

yeah im pretty sure it blew because something is wrong. thats why the dealer recommended replacement

335i101 · 08-25-2011, 06:15 PM

not sure what is all connected to that fuse but I got low battery, traction control, abs, and "!" warning lights.....after fuse was replaced, I cleared codes and all is good.

Here was the fuse compartment in ECU area....

cwn23 · 08-25-2011, 06:41 PM

Quote:

Originally Posted by 335i101

not sure what is all connected to that fuse but I got low battery, traction control, abs, and "!" warning lights.....after fuse was replaced, I cleared codes and all is good.

Here was the fuse compartment in ECU area....

It must have been so nice to find the issue after all those hours of you trying to get it working! Kudos to you brother

caliguy562 · 08-27-2011, 11:40 PM

Can you tell me exactly where those fuses are located in the ECU compartment. I can't find them, but maybe it's because I have an '07. Either way, currently I'm having the same issue.

335i101 · 08-28-2011, 12:04 AM

Quote:

Originally Posted by caliguy562

Can you tell me exactly where those fuses are located in the ECU compartment. I can't find them, but maybe it's because I have an '07. Either way, currently I'm having the same issue.

PM sent, let me know if that was the issue...I will sleep better knowing I saved someone 2k!

blueaudi18 · 08-28-2011, 06:53 PM

Wished i found this post ealier.. car at dealer getting ecu replaced caue waterpu wont turn on.. my bill is 2700 though.

3coupe · 08-28-2011, 11:08 PM

are we talking about the dme in the engine compartment? i can't find where this ecu box in the above picture is located

caliguy562 · 08-29-2011, 12:46 AM

335i101, I owe you a beer or something. Actually my car didn't have those five fuses in the ecu box. Under the black cap was a relay. BT tool pointed to the dme main relay. However, I know relays don't fail without warning. I found a blown 30 amp fuse behind the glove compartment. Replaced and car fired right up.

Thanks again for your quick response..def helped me get some rest before I got back to it this morning.

335i101 · 08-29-2011, 01:50 AM

Quote:

Originally Posted by 3coupe

are we talking about the dme in the engine compartment? i can't find where this ecu box in the above picture is located

I have an 07' and it is located in the ecu box, more towards the center of the car, hidden under wires.....it does not look like a fuse box, u need to look closely.

Also, as noted in latter post, the blown fuse may be in your fuse box (in the glove box) depending on model.

Anyway, if u get a ton of fault codes (along with reving engine and lots of orange warning lights) and one of the fault codes is the DME main relay, check ALL 30amp fuses and this is most likely the problem.

20 cents at the store or 2k at the dealer...

335i101 · 09-14-2011, 11:13 PM

Bump for recent post

HGreen335 · 03-25-2012, 11:04 AM

Quote:

Originally Posted by 335i101

Bump for recent post

having similar problems with my ecu. How do i get the cover off that black clip that has the fuses in it? i dont need to break something else

Randomaccess335 · 03-25-2012, 12:20 PM

My DME just went out, common for some 2007's. Dealer said it also took out all 6 injectors and coil packs.
DME code 30BB searched and found its possible bad diode

asado111 · 03-25-2012, 12:29 PM

my dme went out before, it was close to a 1900 dollar bill, dealership replaced it under CPO, they replaced dme, all coils, spark plugs, and fuel injectors.

08-24-2011, 09:52 PM	#1
335i101 Lieutenant 79 Rep 586 Posts Drives: 2008 E60 M5 Join Date: Dec 2010 Location: ND iTrader: (2)	DME warning... Recently my car started surging and was undrivable...I was in northern WI and no dealerships anywhere. I had it towed 220 miles to my local dealership.---insurance covered it After there inspection they said I needed a new DME and with parts and labor it was $1900.00. I had my suspicions and had tje car towed toy house. Ran some tests and found it was a blown fuse in the ECU box, replaced and car is running perfect.....just a heads up to all! __________________ 2021 Mercedes G550 2015 X5M 2020 Supra-JB4, DP 2008 M5 with muffler delete-sold 2007 650i-sold 2008 335i-JB4, DP, Meth-sold
	Appreciate 0 Tweet Quote

08-24-2011, 10:51 PM	#5
EastBayE90 Formerly (-(ellblazer420 48 Rep 703 Posts Drives: 07 E90 335i M/T, 15 F80 M3 DCT Join Date: Sep 2010 Location: SF East Bay, CA iTrader: (0) Garage List 2007 BMW 335I E90 [8.84]	Nice find so that fuse image I gave you worked out congrats nice save! __________________ (410whp 445ft/lbs \| DCI + Meth Only) OpenFlash OTS Stage 1 Flash \| Vishnu PWM Meth Kit \| Vishnu DCI\| Forge DVs
	Appreciate 0 Quote

08-25-2011, 08:30 AM	#6
hotrod182 . 812 Rep 3,974 Posts Drives: 2023 i4 M50 Join Date: Dec 2006 Location: California iTrader: (0)	Wow, 30amps would be a major amperage short for the DME. What else is on that fuse circuit? __________________ 2011 Alpine 335d M-Sport 12.34 @ 110.48mph 2019 i3s Terra, 2008 Black 335i Sedan. 11.11@ 129.47 mph 2008 Monaco Blue JB3 2.0 335i Coupe. 11.33 @ 132.77 mph, 60-130mph: 6.95 seconds 2023 i4 M50 11.48 @ 121.56mph, 3.43 0-60 (dragy)
	Appreciate 0 Quote

08-25-2011, 09:09 AM	#7
secretsquirrel Colonel 130 Rep 2,291 Posts Drives: f80 Join Date: Dec 2010 Location: Far North Dallas iTrader: (2)	Be sure to let the stealership know what really happened. They don't call them stealerships for nothing. Last edited by secretsquirrel; 08-25-2011 at 09:17 AM..
	Appreciate 0 Quote

08-25-2011, 12:27 PM	#9
lonestar22 Ground Clearance? 232 Rep 1,651 Posts Drives: 540i & X5 Join Date: Jul 2009 Location: DFW iTrader: (-1)	yeah im pretty sure it blew because something is wrong. thats why the dealer recommended replacement __________________ E90 330i - E90 335i - E92 335i
	Appreciate 0 Quote

08-25-2011, 06:15 PM	#11
335i101 Lieutenant 79 Rep 586 Posts Drives: 2008 E60 M5 Join Date: Dec 2010 Location: ND iTrader: (2)	not sure what is all connected to that fuse but I got low battery, traction control, abs, and "!" warning lights.....after fuse was replaced, I cleared codes and all is good. Here was the fuse compartment in ECU area.... Attached Images __________________ 2021 Mercedes G550 2015 X5M 2020 Supra-JB4, DP 2008 M5 with muffler delete-sold 2007 650i-sold 2008 335i-JB4, DP, Meth-sold
	Appreciate 0 Quote

08-27-2011, 11:40 PM	#13
caliguy562 Lieutenant 8 Rep 476 Posts Drives: E92 335i Join Date: Dec 2007 Location: garaged somewhere in soCal iTrader: (3)	Can you tell me exactly where those fuses are located in the ECU compartment. I can't find them, but maybe it's because I have an '07. Either way, currently I'm having the same issue.
	Appreciate 0 Quote

08-28-2011, 06:53 PM	#15
blueaudi18 Colonel 296 Rep 2,687 Posts Drives: e92 08' 335i , mb sl500 Join Date: Oct 2007 Location: boston iTrader: (25)	Wished i found this post ealier.. car at dealer getting ecu replaced caue waterpu wont turn on.. my bill is 2700 though. __________________ POSTED WITH APOLOGIES FOR POOR SPELLING, GRAMMAR AND SENTENCE STRUCTURE Poor Man's M3
	Appreciate 0 Quote

08-28-2011, 11:08 PM	#16
3coupe Captain 31 Rep 645 Posts Drives: BMW 335i Coupe 07 Join Date: May 2007 Location: Somewhere. iTrader: (2)	are we talking about the dme in the engine compartment? i can't find where this ecu box in the above picture is located __________________ BMW E92 335i retired: 04 BMW M3 \| 05 Honda S2000 \| 03 BMW 330ci \| 01 Honda Prelude \| 99 Acura Type-R
	Appreciate 0 Quote

08-29-2011, 12:46 AM	#17
caliguy562 Lieutenant 8 Rep 476 Posts Drives: E92 335i Join Date: Dec 2007 Location: garaged somewhere in soCal iTrader: (3)	335i101, I owe you a beer or something. Actually my car didn't have those five fuses in the ecu box. Under the black cap was a relay. BT tool pointed to the dme main relay. However, I know relays don't fail without warning. I found a blown 30 amp fuse behind the glove compartment. Replaced and car fired right up. Thanks again for your quick response..def helped me get some rest before I got back to it this morning.
	Appreciate 0 Quote

09-14-2011, 11:13 PM	#19
335i101 Lieutenant 79 Rep 586 Posts Drives: 2008 E60 M5 Join Date: Dec 2010 Location: ND iTrader: (2)	Bump for recent post __________________ 2021 Mercedes G550 2015 X5M 2020 Supra-JB4, DP 2008 M5 with muffler delete-sold 2007 650i-sold 2008 335i-JB4, DP, Meth-sold
	Appreciate 0 Quote

03-25-2012, 12:20 PM	#21
Randomaccess335 Captain 69 Rep 868 Posts Drives: 07' 335I Join Date: Mar 2011 Location: boynton beach, Fl iTrader: (11)	My DME just went out, common for some 2007's. Dealer said it also took out all 6 injectors and coil packs. DME code 30BB searched and found its possible bad diode __________________ JB4 G5 ISO , AR DP's, DO Meth kit Trunk Mount, ETS 5" Intercooler, M6 Rims, ER Charge Pipe, Fordged DV's, MMp relocated inlets, Ebay 4" chrome Tips, Lux Angel Eyes ********11.910 @ 117.091.851 60'*********
	Appreciate 0 Quote

03-25-2012, 12:29 PM	#22
asado111 First Lieutenant 56 Rep 361 Posts Drives: BMW M4 Join Date: May 2011 Location: TX iTrader: (0)	my dme went out before, it was close to a 1900 dollar bill, dealership replaced it under CPO, they replaced dme, all coils, spark plugs, and fuel injectors.
	Appreciate 0 Quote