Drag racing and car died and trans

Maxboosteric · 11-05-2022, 06:50 PM

Have a 2007 auto 335i mods are fbo and e50. Car ran 1/8 mile 7.70 at 92 2 times launching in 2nd gear. 60' was good with a 1.8 both times. Car has 100k and has had a pretty easy life. One of the runs the car went into limp mode heating the tires. Stop restart and it was ok again. Ran the car about 4 times and after the last burnout the car just shut off. I towed it home and found the starter went out, replaced it and the car runs again. Go to drive and now I have no gears. So the starter went out and I lost forward and reverse on the auto trans. Car has all the normal xhp mhd stuff so I pulled the codes and it has 4f81 4f97 4f84. Just got done doing a trans service. New seals, oil and filter. Unfortunately the seals looked good. So now here I am???????? Think maybe the valve body. The car just rolls when I put it in gears and everything works like it should just no gears engage.

Saif2018 · 11-06-2022, 05:45 AM

Quote:

Originally Posted by Maxboosteric

Have a 2007 auto 335i mods are fbo and e50. Car ran 1/8 mile 7.70 at 92 2 times launching in 2nd gear. 60' was good with a 1.8 both times. Car has 100k and has had a pretty easy life. One of the runs the car went into limp mode heating the tires. Stop restart and it was ok again. Ran the car about 4 times and after the last burnout the car just shut off. I towed it home and found the starter went out, replaced it and the car runs again. Go to drive and now I have no gears. So the starter went out and I lost forward and reverse on the auto trans. Car has all the normal xhp mhd stuff so I pulled the codes and it has 4f81 4f97 4f84. Just got done doing a trans service. New seals, oil and filter. Unfortunately the seals looked good. So now here I am???????? Think maybe the valve body. The car just rolls when I put it in gears and everything works like it should just no gears engage.

For full transmission service, Mechatronic Sleeves, Seals, Transmission solenoids, oil, pan+filter should be changed.

Could be your sleeves or solenoids causing the transmission errors.

Maxboosteric · 11-06-2022, 09:11 AM

Quote:

Originally Posted by Saif2018

For full transmission service, Mechatronic Sleeves, Seals, Transmission solenoids, oil, pan+filter should be changed.

Could be your sleeves or solenoids causing the transmission errors.

I did the sleeves but no solenoids. Can the solenoids cause it not go into any gear?

Saif2018 · 11-06-2022, 04:51 PM

Quote:

Originally Posted by Maxboosteric

I did the sleeves but no solenoids. Can the solenoids cause it not go into any gear?

Not sure to be honest but I'd do the solenoids on a service

N54_e90 · 11-07-2022, 10:51 AM

how was ur trans before? i did a full service and it caused more damage to my tranny everything was slipping. if ur not enganging any gears its possible there is a little pin thing in the valve body that might have broke .. my mechanic told me it can happen

Maxboosteric · 11-07-2022, 11:59 AM

Trans was good before great shifts. I'm going to pull the pan again and check to make sure it is switch the Valve.
Part that has me

is the starter going out.

whyzee125 · 11-07-2022, 12:35 PM

Did you use ZF lifeguard 6 fluid?

iqraceworks · 11-08-2022, 01:25 PM

Quote:

Originally Posted by Maxboosteric

I did the sleeves but no solenoids. Can the solenoids cause it not go into any gear?

Bad/Worn solenoids can cause the transmission clutches to slip...and that will put it in limp mode and lock it in gear.

You can get the xHP app for free and scan your transmission...see what transmission codes you have.

As far as the fluid goes....I've had great luck with Valvoline Maxlife synthetic ATF in my car...it meets the ZF spec, is easy to find, and way cheaper than the ZF fluid. I've got several 10 second passes on my car with no transmission issues

Maxboosteric · 11-08-2022, 06:21 PM

Quote:

Originally Posted by whyzee125

Did you use ZF lifeguard 6 fluid?

Used top tech 1800 from the euro place. Liquid moly

Maxboosteric · 11-08-2022, 06:22 PM

Quote:

Originally Posted by iqraceworks

Bad/Worn solenoids can cause the transmission clutches to slip...and that will put it in limp mode and lock it in gear.

You can get the xHP app for free and scan your transmission...see what transmission codes you have.

As far as the fluid goes....I've had great luck with Valvoline Maxlife synthetic ATF in my car...it meets the ZF spec, is easy to find, and way cheaper than the ZF fluid. I've got several 10 second passes on my car with no transmission issues

I listed the codes from the trans. I have xhp and deep scan for bmw.

Maxboosteric · 12-04-2022, 08:58 AM

Just an updated. I went over everything again and added new solenoids. Trans is bad so I'm gonna pull it out or part it out lol.

Maxboosteric · 12-09-2022, 07:59 AM

Update! I played around with fluid level and got the car to finally move. Weird it was almost like it lost prime on something. Did a last fill and she is 100% again.

iqraceworks · 12-12-2022, 10:30 AM

Quote:

Originally Posted by Maxboosteric

Update! I played around with fluid level and got the car to finally move. Weird it was almost like it lost prime on something. Did a last fill and she is 100% again.

You know there is a pretty specific procedure on how to fill the trans with fluid...right? It needs to be at a certain temp, you need to cycle it through the gears, then you need to fill again.

11-05-2022, 06:50 PM	#1
Maxboosteric New Member 5 Rep 11 Posts Drives: 335i Join Date: May 2016 Location: Nc iTrader: (0)	Drag racing and car died and trans Have a 2007 auto 335i mods are fbo and e50. Car ran 1/8 mile 7.70 at 92 2 times launching in 2nd gear. 60' was good with a 1.8 both times. Car has 100k and has had a pretty easy life. One of the runs the car went into limp mode heating the tires. Stop restart and it was ok again. Ran the car about 4 times and after the last burnout the car just shut off. I towed it home and found the starter went out, replaced it and the car runs again. Go to drive and now I have no gears. So the starter went out and I lost forward and reverse on the auto trans. Car has all the normal xhp mhd stuff so I pulled the codes and it has 4f81 4f97 4f84. Just got done doing a trans service. New seals, oil and filter. Unfortunately the seals looked good. So now here I am???????? Think maybe the valve body. The car just rolls when I put it in gears and everything works like it should just no gears engage.
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11-07-2022, 10:51 AM	#5
N54_e90 Don 50 Rep 300 Posts Drives: '09 E90 335xi Family Sedan Join Date: Jan 2017 Location: Your Mother's House iTrader: (0)	how was ur trans before? i did a full service and it caused more damage to my tranny everything was slipping. if ur not enganging any gears its possible there is a little pin thing in the valve body that might have broke .. my mechanic told me it can happen
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11-07-2022, 11:59 AM	#6
Maxboosteric New Member 5 Rep 11 Posts Drives: 335i Join Date: May 2016 Location: Nc iTrader: (0)	Trans was good before great shifts. I'm going to pull the pan again and check to make sure it is switch the Valve. Part that has me is the starter going out.
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11-07-2022, 12:35 PM	#7
whyzee125 Brigadier General 2007 Rep 4,031 Posts Drives: Dinan stage 2 335i Join Date: Jul 2014 Location: Chattanooga Tn iTrader: (0)	Did you use ZF lifeguard 6 fluid?
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12-04-2022, 08:58 AM	#11
Maxboosteric New Member 5 Rep 11 Posts Drives: 335i Join Date: May 2016 Location: Nc iTrader: (0)	Just an updated. I went over everything again and added new solenoids. Trans is bad so I'm gonna pull it out or part it out lol.
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12-09-2022, 07:59 AM	#12
Maxboosteric New Member 5 Rep 11 Posts Drives: 335i Join Date: May 2016 Location: Nc iTrader: (0)	Update! I played around with fluid level and got the car to finally move. Weird it was almost like it lost prime on something. Did a last fill and she is 100% again.
	Appreciate 0 Quote