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SMG Help

Discuss problems you have had or are having with your Z4
McDade
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SMG Help

Post by McDade » Sat Jan 28, 2017 12:59 pm

Hello,

I once again need to ask the help of you guys. I've got E85 SMG which I believed to have a battery problem. The cars been sat over winter and clearly struggling with power.

Long story short, I've changed the battery on the car hoping this would be the end of my problems. When you open the car you normally hear the gearbox enagaging. This isn't currently happening

My cars stuck in 1st and will not go into neutral to start the thing. All other items are working as expected(lights, windows, roof etc)

Any ideas anyone of what I can do?

Cheers
2018 Jaguar F Pace R - The Daily Drive
2003 BMW Z4 3.0i, Black wi/ Red, SMG - The bit on the side

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patriot66
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SMG Help

Post by patriot66 » Sat Jan 28, 2017 1:17 pm

Hi there. Mine was a bit 'awkward' after I fitted a new battery last summer. Have you got the doors closed and your foot on the brake ? Take the key out and lock the car. Wait 1 minute then unlock and when you turn the ignition back on wait 15 to 20 seconds before trying to select neutral. Worked for me and mines been fine since. :thumbsup:
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McDade
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SMG Help

Post by McDade » Sat Jan 28, 2017 1:44 pm

Il give that a bash

I found an old article saying that relays are most common. I've reseated these and still no joy. Il ring BM see if I can get these parts
2018 Jaguar F Pace R - The Daily Drive
2003 BMW Z4 3.0i, Black wi/ Red, SMG - The bit on the side

McDade
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SMG Help

Post by McDade » Fri Feb 03, 2017 3:02 pm

So ive finally got the relay ordered after getting confirmation from BMW parts dept

For future reference the part number is: 61368366646

i will update tomorrow on whether this resolves my issue or not. Fingers crossed!
2018 Jaguar F Pace R - The Daily Drive
2003 BMW Z4 3.0i, Black wi/ Red, SMG - The bit on the side

McDade
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SMG Help

Post by McDade » Sun Feb 05, 2017 2:16 pm

So the relay hasn't fixed my issue! I've checked the fuses and relay was kinda my last hope before getting the car recovered

Anyone else have any suggestions?

Cheers
2018 Jaguar F Pace R - The Daily Drive
2003 BMW Z4 3.0i, Black wi/ Red, SMG - The bit on the side

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raymond.harper
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SMG Help

Post by raymond.harper » Sun Feb 05, 2017 3:34 pm


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GuidoK
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Post by GuidoK » Sun Feb 05, 2017 4:10 pm

My money is on one of the sensors.
The smg has basically 4 sensors:
A pressure sensor
Speed sensor
2 shift sensors.
I think the first 2 can be changed without dropping exhaust/heatshields/gearbox(possibly), but still involves removing engine mounts and lowering the engine (so you can reach behind the engine to the gearbox)
The other two sensors...I dont know (located at the back of the box).
The main issue is that your car even cant get into neutral, so getting it even towed is a major problem.
What you can try is disconnecting the battery for 15min, then connecting it and within 2 sec try to shift to neutral (the smg ecu will need a few sec to read the sensors but may want to give shift control before that).
Than you at least can get it onto a flatbed.
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McDade
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SMG Help

Post by McDade » Mon Feb 06, 2017 3:06 pm

Thank you very much for the response's guys!
2018 Jaguar F Pace R - The Daily Drive
2003 BMW Z4 3.0i, Black wi/ Red, SMG - The bit on the side

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kis
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Post by kis » Mon Feb 06, 2017 3:42 pm

I've read somewhere that gear selection can also be to-do with the SMG pump. Possibly pump having a fit (on it's way out) or possibly pump hydraulic fluid being too low?
My E85 Z4 3.0i SMG

BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71

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kis
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Post by kis » Mon Feb 06, 2017 3:53 pm

Had another little google just now. Seems like the relay is the easy fix if you're lucky. Followed by either pump issue or a sensor issue like GuidoK mentioned. Take a look at this one. If your dash doesn't say F for fault (in replacement of N, D, or R) then I'd say pump!

Good luck and keep us posted! :)
My E85 Z4 3.0i SMG

BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71

McDade
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SMG Help

Post by McDade » Mon Feb 06, 2017 6:09 pm

F1 does come up, and i cannot hear the pump prime. Ive changed the relay and the fuses, but still no joy

Ive messaged another member who said SMG fluid could be topped up, but i cannot find the reservoir.

Im resigned to the fact it maybe a pump replacement, but ive heard of lots of stories of people just changing the pump out without fully understanding which component was faulty.

Thanks again everyone
2018 Jaguar F Pace R - The Daily Drive
2003 BMW Z4 3.0i, Black wi/ Red, SMG - The bit on the side

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kis
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Post by kis » Mon Feb 06, 2017 10:15 pm

Maybe this might help... Assume it's similar to Z4. Not entirely sure which model it's even for in the thread!

http://www.zhpmafia.com/forums/showthre ... lic-Fluid-(Pentosin-CHF-11s
My E85 Z4 3.0i SMG

BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71

McDade
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SMG Help

Post by McDade » Tue Feb 07, 2017 1:18 pm

Hey Kis,

ive seen that schematics before, and i also struggled understanding what model its from.

Ive seen the location on the M3 SMG and it looks similar to the thread on ZHPmafia.

Im going to bob down to BMW today and see if they can help too

Cheers
2018 Jaguar F Pace R - The Daily Drive
2003 BMW Z4 3.0i, Black wi/ Red, SMG - The bit on the side

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mac27040
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SMG Help

Post by mac27040 » Fri Feb 10, 2017 10:43 pm

Any update on the problem, try putting it in reverse and switch ignition on and off to get it to move out off first.
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jabber
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Post by jabber » Sat Feb 11, 2017 10:39 am

mac27040 wrote:Any update on the problem, try putting it in reverse and switch ignition on and off to get it to move out off first.
I would be interested in the outcome of this as well
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