M3 Steering Rack Swap

PHanna04 · 02-06-2015, 12:30 PM

Anybody had any success with an xi?

gtaccord · 02-07-2015, 07:26 AM

Not possible on an xi.

gtaccord · 02-07-2015, 08:45 AM

Not possible on an xi.

e90pilot · 02-07-2015, 03:22 PM

To the people who have done this mod: what effect has this had on your stability control? I recently quickened this steering ratio on another car I have and the stability control no longer works. The system compares speed, steering angle, and yaw rate. If you quicken the steering the steering angle sensor values will no longer match the programmed values in the stability control. The yaw rate will be faster for a given speed and steering angle making the car react as if it's oversteering. You would need to reprogram the DSC unit or somehow modify the signal from the steering angle sensor.

vasillalov · 02-07-2015, 06:54 PM

The only reason why anyone would want faster steering is so that they can drive the car more effectively on track and autox events. In both situations the traction control should be completely disabled any way. I fail to see the problem here...

robc1976 · 02-07-2015, 06:59 PM

Didn't mess with my car, one of my favorite mods. Traction control is always off lol!

e90pilot · 02-07-2015, 08:28 PM

Quote:

Originally Posted by vasillalov

The only reason why anyone would want faster steering is so that they can drive the car more effectively on track and autox events. In both situations the traction control should be completely disabled any way. I fail to see the problem here...

What about on the street? I'm just wondering if anyone got it to work again or at least found a way to have it disabled by default when the car starts.

robc1976 · 02-07-2015, 08:32 PM

Quote:

Originally Posted by e90pilot

What about on the street? I'm just wondering if anyone got it to work again or at least found a way to have it disabled by default when the car starts.

Nothing plugs in, you leave servo unplugged. I didn't even have steering angle sensor recalibrated.

e90pilot · 02-07-2015, 08:38 PM

Quote:

Originally Posted by robc1976

Nothing plugs in, you leave servo unplugged. I didn't even have steering angle sensor recalibrated.

Interesting. I'm gonna try that with my other car so I don't have to keep pressing the button every time I start. With the BMW though you'll have to manually cancel the turn signals because BMW.

vwetish · 02-08-2015, 09:58 AM

Quote:

Originally Posted by vasillalov

The only reason why anyone would want faster steering is so that they can drive the car more effectively on track and autox events. In both situations the traction control should be completely disabled any way. I fail to see the problem here...

How about adverse effect on the function of the ABS? Granted, you can turn off DTC but you can't turn off ABS and is known fact that bad steering position sensor will throw out faulty codes for the ABS as well because the system will malfunction. I have seen this on E90 and other BWM's as well, e46 in particular.
You will have these codes:

vwetish · 02-08-2015, 10:02 AM

Quote:

Originally Posted by robc1976

Nothing plugs in, you leave servo unplugged. I didn't even have steering angle sensor recalibrated.

plugged or not servo has nothing to do with the steering position sensor as that is mounted on the steering column slip ring

e90pilot · 02-08-2015, 01:25 PM

Quote:

Originally Posted by vwetish

How about adverse effect on the function of the ABS? Granted, you can turn off DTC but you can't turn off ABS and is known fact that bad steering position sensor will throw out faulty codes for the ABS as well because the system will malfunction. I have seen this on E90 and other BWM's as well, e46 in particular.
You will have these codes:

The abs light isn't on. I wonder if it still works. Only the yellow "brake" light is on.

marconi118 · 02-24-2015, 09:32 AM

done on mine

no malfunction of DSC and ABS at all

robc1976 · 02-24-2015, 12:20 PM

Quote:

Originally Posted by marconi118

done on mine

no malfunction of DSC and ABS at all

awesome! How do you like it? I love mine!

marconi118 · 03-11-2015, 11:03 AM

I love it too !!!!!

on heavy track use (lot of turns) the oil can spill out of the reservoir.

this is a common known M3 problem. we should upgrade to the bigger reservoir of the E92 with active steering.

Any hope that BMS will include the control of the stiffness in a new release of the JB4?

I actually control the stiffness by sending a PWM signal to the valve. but it is or too stiff for low speed or too light for high speed.... a variable PWM is needed

BoostNinja · 04-27-2015, 10:16 PM

Hope this helps guys....

I found that on a 1m the JBE controls the servotronic (pretty sure the dme does on a m3)

Hopefully that means that we can make servotronic work on our cars by possibly programming/coding the jbe and wiring it up

So the wires from servotronic go to the large connector on the back of the JBE/JB connector (X14270)

Pin 5 (black wire with brown stripe)
pin 6 (black wire with white stripe)

These are not listed in ANY wiring diagram, with factory diagnostic software it says those pins are not used. I verified by checking continuity between the servotronic connector and the pins at the jbe. Its 100% accurate.

The ZB number of the jbe that has working servotronic is 9264577

Remember this is on a 1M, im 80% sure this will work on a e90. It should work for sure on a 135i.

GOOD LUCK!

robc1976 · 04-27-2015, 11:03 PM

Quote:

Originally Posted by BoostNinja

Hope this helps guys....

I found that on a 1m the JBE controls the servotronic (pretty sure the dme does on a m3)

Hopefully that means that we can make servotronic work on our cars by possibly programming/coding the jbe and wiring it up

So the wires from servotronic go to the large connector on the back of the JBE/JB connector (X14270)

Pin 5 (black wire with brown stripe)
pin 6 (black wire with white stripe)

These are not listed in ANY wiring diagram, with factory diagnostic software it says those pins are not used. I verified by checking continuity between the servotronic connector and the pins at the jbe. Its 100% accurate.

The ZB number of the jbe that has working servotronic is 9264577

Remember this is on a 1M, im 80% sure this will work on a e90. It should work for sure on a 135i.

GOOD LUCK!

WOW!

marconi118 · 04-29-2015, 09:46 AM

WOW it would be great to code this module!

Any coding guru could come in?

Where is located the JBE?

BoostNinja · 04-29-2015, 08:45 PM

It's below/behind the glove box.

idnan · 06-08-2015, 03:45 PM

Any update on this? Would love to have working servotronic on the m3 rack on my car.

Kizzu · 06-11-2015, 06:54 PM

Will this conversion fit on a co2 packaged e82 with electronic assisted steering?

BoostNinja · 06-13-2015, 05:47 PM

I doubt it. Anyone tried it yet? Ive been swamped with customer cars.

02-06-2015, 12:30 PM	#67
PHanna04 New Member 0 Rep 7 Posts Drives: 2009 328i Join Date: Jan 2015 Location: nj iTrader: (0)	Anybody had any success with an xi?
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02-07-2015, 07:26 AM	#68
gtaccord Major 56 Rep 1,464 Posts Drives: 2009 BMW 335xi Join Date: Feb 2012 Location: Maryland iTrader: (7) Garage List 2009 BMW 335i xdrive [0.00]	Not possible on an xi.
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02-07-2015, 08:45 AM	#69
gtaccord Major 56 Rep 1,464 Posts Drives: 2009 BMW 335xi Join Date: Feb 2012 Location: Maryland iTrader: (7) Garage List 2009 BMW 335i xdrive [0.00]	Not possible on an xi.
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02-07-2015, 03:22 PM	#70
e90pilot Freight Dawg 102 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	To the people who have done this mod: what effect has this had on your stability control? I recently quickened this steering ratio on another car I have and the stability control no longer works. The system compares speed, steering angle, and yaw rate. If you quicken the steering the steering angle sensor values will no longer match the programmed values in the stability control. The yaw rate will be faster for a given speed and steering angle making the car react as if it's oversteering. You would need to reprogram the DSC unit or somehow modify the signal from the steering angle sensor. __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Deiselboost caliper brackets \| E46 M3 front rotors
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02-07-2015, 06:54 PM	#71
vasillalov Mad Linux Guru On The Loose 1121 Rep 5,396 Posts Drives: 2008 335i Sedan, 2023 M3 Join Date: Aug 2009 Location: Chicago, IL iTrader: (5) Garage List 2023 BMW M3 [0.00] 2008 335i E90 [8.00]	The only reason why anyone would want faster steering is so that they can drive the car more effectively on track and autox events. In both situations the traction control should be completely disabled any way. I fail to see the problem here... __________________ 6MT \| COBB \| AR \| AE \| Forge DV \| HPF \| P3 Gauge \| Hybrid Intake \| O.S.Giken TCD \| All M3 bits \| TCKLine \| StopTech \| UUC \| ER \| SPEC
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02-07-2015, 06:59 PM	#72
robc1976 DIYER 614 Rep 5,521 Posts Drives: E90 335i Join Date: Mar 2012 Location: Illinois iTrader: (14)	Didn't mess with my car, one of my favorite mods. Traction control is always off lol! __________________ JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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02-24-2015, 09:32 AM	#79
marconi118 Major 94 Rep 1,184 Posts Drives: 06/07 e93 335i Join Date: Nov 2008 Location: europe iTrader: (0)	done on mine no malfunction of DSC and ABS at all
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03-11-2015, 11:03 AM	#81
marconi118 Major 94 Rep 1,184 Posts Drives: 06/07 e93 335i Join Date: Nov 2008 Location: europe iTrader: (0)	I love it too !!!!! on heavy track use (lot of turns) the oil can spill out of the reservoir. this is a common known M3 problem. we should upgrade to the bigger reservoir of the E92 with active steering. Any hope that BMS will include the control of the stiffness in a new release of the JB4? I actually control the stiffness by sending a PWM signal to the valve. but it is or too stiff for low speed or too light for high speed.... a variable PWM is needed
	Appreciate 0 Quote

04-27-2015, 10:16 PM	#82
BoostNinja Second Lieutenant 59 Rep 235 Posts Drives: 335is Join Date: Nov 2008 Location: Spring TX iTrader: (2)	Hope this helps guys.... I found that on a 1m the JBE controls the servotronic (pretty sure the dme does on a m3) Hopefully that means that we can make servotronic work on our cars by possibly programming/coding the jbe and wiring it up So the wires from servotronic go to the large connector on the back of the JBE/JB connector (X14270) Pin 5 (black wire with brown stripe) pin 6 (black wire with white stripe) These are not listed in ANY wiring diagram, with factory diagnostic software it says those pins are not used. I verified by checking continuity between the servotronic connector and the pins at the jbe. Its 100% accurate. The ZB number of the jbe that has working servotronic is 9264577 Remember this is on a 1M, im 80% sure this will work on a e90. It should work for sure on a 135i. GOOD LUCK!
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04-29-2015, 09:46 AM	#84
marconi118 Major 94 Rep 1,184 Posts Drives: 06/07 e93 335i Join Date: Nov 2008 Location: europe iTrader: (0)	WOW it would be great to code this module! Any coding guru could come in? Where is located the JBE?
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04-29-2015, 08:45 PM	#85
BoostNinja Second Lieutenant 59 Rep 235 Posts Drives: 335is Join Date: Nov 2008 Location: Spring TX iTrader: (2)	It's below/behind the glove box.
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06-08-2015, 03:45 PM	#86
idnan Lieutenant Colonel 76 Rep 1,518 Posts Drives: Alpine White 335i Join Date: Nov 2010 Location: Birmingham iTrader: (9)	Any update on this? Would love to have working servotronic on the m3 rack on my car.
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06-11-2015, 06:54 PM	#87
Kizzu First Lieutenant 41 Rep 306 Posts Drives: Bmw 125i Black Sapphire Join Date: Oct 2013 Location: Malta iTrader: (0)	Will this conversion fit on a co2 packaged e82 with electronic assisted steering?
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06-13-2015, 05:47 PM	#88
BoostNinja Second Lieutenant 59 Rep 235 Posts Drives: 335is Join Date: Nov 2008 Location: Spring TX iTrader: (2)	I doubt it. Anyone tried it yet? Ive been swamped with customer cars.
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