open the roof while driving

ronk said:
enuff_zed said:
ronk said:
Once you’ve had a smarttop that logic goes out the window!

So, forgive my ignorance on this subject, but for all that money, what does it do other than changing the button action to a single press?

This is how I’ve got mine configured:-

Function 1 = 1 on
Function 2 = 1 one touch buttons
Function 3 = 1 windows up
Function 4 = 4 is 40kph or 25mph
Function 5 = 1 1 touch windows up
Function 6 = 3 Auto fold @ lock/unlock
Function 7 = 2 unlock doors ign off
Function 8 = 0 switch invert
Function 9 = 0 seq unlock
Function10 = 0 fac window remote

The roof up or down from the key fob is the main advantage for me. I have a bit of of a mobility issue so the roof thing is a real bonus.

There are now 15 options that can be configured on the SmartTop module, you just need to update the firmware on the unit to get these.
smart top z4.jpg
 
That’s good to know that there’s more actions available - but I’m so used to the functions I’ll probably leave it well alone .

I’ve kept the tail to the unit accessible in the boot space and my otherwise redundant Samsung notebook.
 
To be honest with the potential problems we might have with these roofs, why risk operating at speed. If you see dark clouds, pull over and close the roof whilst stationary..
 
I had a smart top on my last car, certainly wont be paying out another chunk to put one on my current car, the additional features are not value for money imo.
Carly tweeks are good enough for me, my mirrors fold when locking/unlocking, i cant justify another
I just paid out to have my roof fixed, dont want a repeat of that!!!
Engine running, finger on button..
Mike
 
flybobbie said:
To be honest with the potential problems we might have with these roofs, why risk operating at speed. If you see dark clouds, pull over and close the roof whilst stationary..
. :thumbsup: :thumbsup: :thumbsup: :driving: :driving: :driving: :thumbsup: :thumbsup: :thumbsup:
 
flybobbie said:
To be honest with the potential problems we might have with these roofs, why risk operating at speed. If you see dark clouds, pull over and close the roof whilst stationary..

I have not heard of any problems that have occured with the roof whilst being operated at speed
 
Zikim said:
flybobbie said:
To be honest with the potential problems we might have with these roofs, why risk operating at speed. If you see dark clouds, pull over and close the roof whilst stationary..

I have not heard of any problems that have occured with the roof whilst being operated at speed

Several points...

I suspect if there have been issues then some of those would be too embarrassed to own up..

The issue is,that since the E89, can’t detect windspeed..you could have a combination of say a 25mph road speed allied to say a 35mph gust of wind head on which results in a transient load of a 60mph wind..

My guess is when it does let go it won’t be pretty..if it was perfect why did they strengthen it in 2012?
 
Pbondar said:
Zikim said:
flybobbie said:
To be honest with the potential problems we might have with these roofs, why risk operating at speed. If you see dark clouds, pull over and close the roof whilst stationary..

I have not heard of any problems that have occured with the roof whilst being operated at speed

I suspect if there have been issues then some of those would be too embarrassed to own up..

I don't think that is a problem on this forum.

We have had owners on here posting that they have closed the roof with an item in the boot where it should not have been and roof was jammed on a slant, so I don't think anyone would have a problem with posting that they had their roof ripped off because of "transient load of a 60mph wind" or similar issues when closing the roof whilst driving.
 
Zikim said:
Pbondar said:
Zikim said:
I have not heard of any problems that have occured with the roof whilst being operated at speed

I suspect if there have been issues then some of those would be too embarrassed to own up..

I don't think that is a problem on this forum.

We have had owners on here posting that they have closed the roof with an item in the boot where it should not have been and roof was jammed on a slant, so I don't think anyone would have a problem with posting that they had their roof ripped off because of "transient load of a 60mph wind" or similar issues when closing the roof whilst driving.

Hi there , I agree with you, but current /past E89 owners on this forum are only a very small fraction of all the E89s out there..

I think where I and others used to having to nurse/mend complex mechanical objects are coming from is that the process intrinsically exposes the roof to stresses so it’s just good practice to minimise these through what in aviation we call good airmanship...sadly there doesn’t seem to be an automotive equivalent...

At the end of the day, the roof in transit is a massive air brake and like all aerodynamic loads the faster you go the bigger the load, all such devices have a safe limit , as I said ...the car doesn’t sense aerodynamic loads so it can’t protect itself in the same way that an aircraft partly can..

There’s a trade off between husbanding your car and not getting pleasure / utility from it...I think we are just arguing that going relatively quickly transiting the roof doesn’t improve pleasure /utility but may, only may, impair the car at some, indeterminate point..

The cars are still relatively new...many stress induced issues only appear years later..
 
Zikim said:
Pbondar said:
Zikim said:
I have not heard of any problems that have occured with the roof whilst being operated at speed

I suspect if there have been issues then some of those would be too embarrassed to own up..

I don't think that is a problem on this forum.

We have had owners on here posting that they have closed the roof with an item in the boot where it should not have been and roof was jammed on a slant, so I don't think anyone would have a problem with posting that they had their roof ripped off because of "transient load of a 60mph wind" or similar issues when closing the roof whilst driving.

I’ve heard of owners getting ripped off by dealers, but not heard of ripped off roofs yet :P
Rob
 
Zikim said:
flybobbie said:
To be honest with the potential problems we might have with these roofs, why risk operating at speed. If you see dark clouds, pull over and close the roof whilst stationary..

I have not heard of any problems that have occured with the roof whilst being operated at speed

That might be true but .........better to be safe than sorry, no? :P
 
I know that if the roof sees any undue inertia while opening or closing the process halts !
I don’t think that’s anything to do with the smarttop module, so maybe bmw engineers have anticipated extra undue loads on the mechanism?
 
ronk said:
I know that if the roof sees any undue inertia while opening or closing the process halts !
I don’t think that’s anything to do with the smarttop module, so maybe bmw engineers have anticipated extra undue loads on the mechanism?

I think the roof panel & rear screen themselves would be fine as the air pressure doesn’t hit them broadside on, it’s the bootlid that’s most vulnerable i suspect & the mechanism has no way of detecting any excess load once it’s fully open and in the “air brake” position :cry:
Rob
 
I come back to you to announce that I have successfully coded my Z4 from 2010.
Now I can open and close the roof while driving up to 40 KM / H.
Personally I think that we should not exceed 30 KM / H is more than enough.
I open and close the roof with the remote control.
Without additional module

Price = 0€
:thumbsup:
 
Tarzan said:
I come back to you to announce that I have successfully coded my Z4 from 2010.
Now I can open and close the roof while driving up to 40 KM / H.
Personally I think that we should not exceed 30 KM / H is more than enough.
I open and close the roof with the remote control.
Without additional module

Price = 0€
:thumbsup:

Has it also got one touch operation from the dash buttons so it’s easier when pulling away? :?
There’s some money to be made here if you offer your services out.
Rob
 
Tarzan said:
I come back to you to announce that I have successfully coded my Z4 from 2010.
Now I can open and close the roof while driving up to 40 KM / H.
Personally I think that we should not exceed 30 KM / H is more than enough.
I open and close the roof with the remote control.
Without additional module

Price = 0€
:thumbsup:

Well done, especially on the remote close..can you publish how you did it?
 
Tarzan said:
I come back to you to announce that I have successfully coded my Z4 from 2010.
Now I can open and close the roof while driving up to 40 KM / H.
Personally I think that we should not exceed 30 KM / H is more than enough.
I open and close the roof with the remote control.
Without additional module

Price = 0€
:thumbsup:

How did you do it? You can't leave us in suspense! :rofl:
 
Tarzan how did you accomplish opening the roof with the remote? I have made all the published changes to the appropriate modules with NCS Expert and still cannot open the roof with the remote. Can you publish which parameters you changed? I have a 2011 E89.

I have already made the following active
KOMFORTOEFFNUNG_FB
KOMFORTSCHLIESSUNG_FB
 
Back
Top Bottom