For those of you that have unhooked your battery.

HyperM3 · 11-15-2007, 02:02 PM

You just unhooked the negative terminal under the toolkit in the trunk and left it off for how long?

When Ive done that before in my other vehicles, everything gets reset. Did that happen to you too or does it have a memory for that within a certain time frame?

sflgator · 11-15-2007, 02:12 PM

Quote:

Originally Posted by HyperM3

You just unhooked the negative terminal under the toolkit in the trunk and left it off for how long?

When Ive done that before in my other vehicles, everything gets reset. Did that happen to you too or does it have a memory for that within a certain time frame?

I unhooked the black negative terminal wire for 1 hour (as Eugen had suggested to 'reset' the ECU so it adapts to the PROcede v2 right away) and the only thing I had to reset was the clock. All my other settings seemed to be ok...my sat radio stations, my seats, my navi address book, etc.

HyperM3 · 11-15-2007, 02:14 PM

Ok, thanks for the quick reply. One hour though huh? That seems a bit excessive.

sflgator · 11-15-2007, 02:15 PM

Quote:

Originally Posted by HyperM3

Ok, thanks for the quick reply. One hour though huh? That seems a bit excessive.

I dunno...ask Eugen.

Walked U · 11-15-2007, 02:25 PM

16 mins on neg terminal.

HyperM3 · 11-15-2007, 02:26 PM

Quote:

Originally Posted by Walked U

16 mins on neg terminal.

Now thats a timeframe I could get used to.

Panoz · 11-15-2007, 02:27 PM

I kept the battery disconnected ,when I firstly installed my procede, for 2 or 2,5 hours.

The only thing that has beenm reset was the fuel consumption & clock.

rooster3.0 · 11-15-2007, 03:18 PM

Yeah, an hour should do

Bimmer335i07 · 11-15-2007, 03:22 PM

Alex, why are you planning on unhooking your battery? New mod?

HyperM3 · 11-15-2007, 03:28 PM

Quote:

Originally Posted by Bimmer335i07

Alex, why are you planning on unhooking your battery? New mod?

No, Ive been losing boost. I want to see if the ECU didnt overthink itself somehow. I went from high 13's in boost to a consistant high of 11.2lbs all day yesterday. Car is feeling not so exciting anymore. Figured a battery disconnect might wake it from its slumber.

Bimmer335i07 · 11-15-2007, 04:11 PM

Quote:

Originally Posted by HyperM3

No, Ive been losing boost. I want to see if the ECU didnt overthink itself somehow. I went from high 13's in boost to a consistant high of 11.2lbs all day yesterday. Car is feeling not so exciting anymore. Figured a battery disconnect might wake it from its slumber.

Your car probably feels like mine now. lol! Since mine only gets up to 11.5 lbs. of boost.

HyperM3 · 11-15-2007, 04:14 PM

Quote:

Originally Posted by Bimmer335i07

Your car probably feels like mine now. lol! Since mine only gets up to 11.5 lbs. of boost.

Thats .3lbs more than me. So yours definitely feels faster now!

MBMWTECH · 11-15-2007, 04:40 PM

Quote:

Originally Posted by rooster3.0

To truly reset the battery and all electronic modules on the car, you should disconnect both terminals and connect them with a piece of metal.This drains all current in the system from all modules and sensors. This was told to me by numerous people at the dealership. I used to think it was the negative only too.

This used to be the case but DO NOT do this anymore - they have found that it can cause a voltage spike and damage control units. so dont do it...
Disconnecting the negative for 1 hour provides a full "battery reset" and causes all control units to fully power down. The 16minute rule only applies to older cars E46-e38-e39 etc. 16 min on an e90 will NOT reset all control units

rooster3.0 · 11-15-2007, 04:54 PM

Quote:

Originally Posted by MBMWTECH

This used to be the case but DO NOT do this anymore - they have found that it can cause a voltage spike and damage control units. so dont do it...
Disconnecting the negative for 1 hour provides a full "battery reset" and causes all control units to fully power down. The 16minute rule only applies to older cars E46-e38-e39 etc. 16 min on an e90 will NOT reset all control units

No shit? I'll take your word given your screen name. The guy that told me that was the dealers main 335 tech too. I hate misinformation. Thanks for the update.

MBMWTECH · 11-16-2007, 11:27 AM

I used to connect the pos and negative also - which does discharge compacitors but bmw NA recently told us not to do this anymore

scalbert · 11-16-2007, 11:43 AM

Quote:

Originally Posted by MBMWTECH

Disconnecting the negative for 1 hour provides a full "battery reset" and causes all control units to fully power down. The 16minute rule only applies to older cars E46-e38-e39 etc. 16 min on an e90 will NOT reset all control units

This is interesting in that Siemens must be designing the DME, etc. to disconnect any load, except memory, when external power is lost. Otherwise and without some substantial capacitors, the charge would be depleted nearly imediately.

6Zylinder · 11-16-2007, 01:35 PM

Quote:

Originally Posted by MBMWTECH

This used to be the case but DO NOT do this anymore - they have found that it can cause a voltage spike and damage control units. so dont do it...

With all these sensitive computers in the car, this makes sense.

BTW, so far I never disconnected the battery. On my last dealer visit (I had to

) they did it and all my indications and radio were f...up!

BoLaS · 11-16-2007, 02:42 PM

Quote:

Originally Posted by sflgator

I unhooked the black negative terminal wire for 1 hour (as Eugen had suggested to 'reset' the ECU so it adapts to the PROcede v2 right away) and the only thing I had to reset was the clock. All my other settings seemed to be ok...my sat radio stations, my seats, my navi address book, etc.

hey sfl when you finally did the battery reset, did ur v2 feel any different? Ive been contimpalting doing this as well as I think my v2 adapted already (cause it sometimes hauls ass), but sometimes it feels like its off

Acap14 · 11-16-2007, 04:38 PM

use a fused jumper wire and jump the neg cable to the pos cable, you only have to do it for like 5 minutes.

sflgator · 11-16-2007, 06:58 PM

Quote:

Originally Posted by BoLaS

hey sfl when you finally did the battery reset, did ur v2 feel any different? Ive been contimpalting doing this as well as I think my v2 adapted already (cause it sometimes hauls ass), but sometimes it feels like its off

Just wait for the updated v2.0.2 map and do the ECU reset via unhooking the black negative terminal wire for 1 hour.

HyperM3 · 11-16-2007, 09:14 PM

Apparently, this is something most people will have to do every now and then with the PROcede. The ECU's ARE adapting to it...

e.n335 · 11-17-2007, 03:03 AM

Quote:

Originally Posted by HyperM3

Apparently, this is something most people will have to do every now and then with the PROcede. The ECU's ARE adapting to it...

If so, it would not be PROcede specific. Why are you so sure ?

- Eugen

11-15-2007, 02:02 PM	#1
HyperM3 Too many Alex's, from now on, call me Beaufort 342 Rep 6,188 Posts Drives: See Sig Join Date: Feb 2007 Location: Lawrenceville, NJ iTrader: (8)	For those of you that have unhooked your battery. You just unhooked the negative terminal under the toolkit in the trunk and left it off for how long? When Ive done that before in my other vehicles, everything gets reset. Did that happen to you too or does it have a memory for that within a certain time frame? __________________ 13 HD FatBob 17 A4 Glacier/Black 1st Edition/Pre+/Sport/EurocodeTMD/Racechip 16 S6 (gone),14 S6 (gone),14 S6 (gone),13 S6 (gone),10 S4 (gone) 07 335i(gone)
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11-15-2007, 02:14 PM	#3
HyperM3 Too many Alex's, from now on, call me Beaufort 342 Rep 6,188 Posts Drives: See Sig Join Date: Feb 2007 Location: Lawrenceville, NJ iTrader: (8)	Ok, thanks for the quick reply. One hour though huh? That seems a bit excessive. __________________ 13 HD FatBob 17 A4 Glacier/Black 1st Edition/Pre+/Sport/EurocodeTMD/Racechip 16 S6 (gone),14 S6 (gone),14 S6 (gone),13 S6 (gone),10 S4 (gone) 07 335i(gone)
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11-15-2007, 02:25 PM	#5
Walked U Brigadier General 179 Rep 3,125 Posts Drives: Too many to list Join Date: Nov 2006 Location: USA iTrader: (5)	16 mins on neg terminal. __________________ Previous - E90 335i, E82 135i, E89 Z4 3.5SI, Range Rover S/C, Ultra White RCF, Maserati Granturismo Current Lexus: SMG LC500 performance package Porsche:1973 911E Ferrari 575 SA, 458 Italia
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11-15-2007, 02:27 PM	#7
Panoz Lieutenant Colonel 84 Rep 1,575 Posts Drives: E92 Space Grey 335i ,Aero Kit Join Date: Nov 2006 Location: EU iTrader: (0)	I kept the battery disconnected ,when I firstly installed my procede, for 2 or 2,5 hours. The only thing that has beenm reset was the fuel consumption & clock. __________________ Procede V4 , Catless DPs, Forge FMIC, Injen Intake, VK Oilcooler, Hartge Quads Exhaust, Modded CDV, Synapse BOV Kit, BMW Performance 335i SSK Kit, P3 vent boost gauge Space Grey 335i -> See more pics HERE
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11-15-2007, 03:18 PM	#8
rooster3.0 Major 27 Rep 1,306 Posts Drives: E92 335i Join Date: Nov 2006 Location: Jersey iTrader: (4)	Yeah, an hour should do Last edited by rooster3.0; 11-15-2007 at 04:55 PM..
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11-15-2007, 03:22 PM	#9
Bimmer335i07 BK Employee of the month! / Moderator 638 Rep 15,795 Posts Drives: BMW 335i Sedan Join Date: Apr 2007 Location: ... iTrader: (9) Garage List 2007 335i [0.00]	Alex, why are you planning on unhooking your battery? New mod? __________________ Sponsored by: Pics of the ---> Barbera Beast <--- Martino Auto Concepts (Like them on Facebook MAC) Factory Trained & Authorized by BMW of North America Matt@Camber-Toe (Like them on Facebook Camber-Toe) LuxAngelEyes (Like them on Facebook LuxAngelEyes) LTBMW (Like them on Facebook LTBMW) OEMconcepts (Like them on Facebook OEMconcepts)
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11-16-2007, 11:27 AM	#15
MBMWTECH BMW TECH 9 Rep 104 Posts Drives: 2008 328I SEDAN - 2008 BMW 750 Join Date: May 2007 Location: SOUTH PLAINFIELD, N.J. iTrader: (0)	I used to connect the pos and negative also - which does discharge compacitors but bmw NA recently told us not to do this anymore __________________ Current Vehicles - 2007 335i Sedan & 2005 X5 3.0 Past Vehicles - 2002 525I, 2003 325 Loaded, 2006 330I CURRENT MODS: PROCEDE V.2 - DYNOTUNE DIGITAL BOOST GUAGE - K&N AIR FILTER- INTERMEDIATE CAT DELETE - LOGIC HVI -
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11-16-2007, 04:38 PM	#19
Acap14 First Lieutenant 104 Rep 315 Posts Drives: E92 M3 Join Date: Apr 2007 Location: Navarre, FL iTrader: (0) Garage List 2008 M3 [0.00]	use a fused jumper wire and jump the neg cable to the pos cable, you only have to do it for like 5 minutes.
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11-16-2007, 09:14 PM	#21
HyperM3 Too many Alex's, from now on, call me Beaufort 342 Rep 6,188 Posts Drives: See Sig Join Date: Feb 2007 Location: Lawrenceville, NJ iTrader: (8)	Apparently, this is something most people will have to do every now and then with the PROcede. The ECU's ARE adapting to it... __________________ 13 HD FatBob 17 A4 Glacier/Black 1st Edition/Pre+/Sport/EurocodeTMD/Racechip 16 S6 (gone),14 S6 (gone),14 S6 (gone),13 S6 (gone),10 S4 (gone) 07 335i(gone)
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