New roof problem

[B21]

...there’s a tilt sensor to stop it ..

Interesting!

I've never heard of it nor found any. :rofl:

Beleive me, there isn't any in the roof.

There exists a list of the 7 typically age related faults in our HowTo section!

Nobody want's to read it, everybody is searching for new, individual faults in the roof package. Really funny - or annoying!

From the US technical dealer briefing training course at launch…


OperatingPre-Conditions
Theretractablehardtopcanbeopenedandclosedusingthebuttoninthecenter
consoleonlyifthefollowingconditionsaremet:
• TerminalRON
• Outsidetemperatureabove-12°C
• Bootlidclosed
• Vehiclestationary(drivingspeed<0.7km/h)
• Luggagecompartmentpartitioninlowestposition
• Lateralinclinationofvehicle<11°
• Powerwindowsinitialized
• Batteryvoltage>11.5V
• Lessthanfivesuccessiveopening/closingoperations
• Hydraulicfluidtemperatureforopening<90°Candforclosing<105°C
• Electricalsystemchecksuccessful
• Production,transportandworkshopmode(FeTraWe)notset.
Itisnotpossibletoopenandclosetheretractablehardtopwhiledriving.Duetothehigh
currentconsumptionoftheretractablehardtopofupto40amps,thehardtopshouldonly
beoperatedwhenthebatterychargerisconnectedortheengineisrunning.
Note: Therearpowerwindowregulatorsdonothaveananti-trapsystem.
Thereisalsonoone-touchfunctionforclosingtherearwindows.

 

[RobbiZ4]

Well, maybe that there is a misunderstanding due to my minor language knowledges. :rofl:

A "precondition" is not identical to a not existing "tilt sensor". :roll:
That's my understanding.

OperatingPre-Conditions
• Lateralinclinationofvehicle<11°

That is correct, but it's an information from the car's body via CAN and not from an additional "tilt" sensor.

 

[B21]

Well, maybe that there is a misunderstanding due to my minor language knowledges. :rofl:

A "precondition" is not identical to a not existing "tilt sensor". :roll:
That's my understanding.

OperatingPre-Conditions
• Lateralinclinationofvehicle<11°

That is correct, but it's an information from the car's body via CAN and not from an additional "tilt" sensor.

Yo :rofl: u can be so pedantic at times!!

 

[RobbiZ4]

U can be so pedantic at times!!

Yes, we can! :rofl: :driving:

 

[RobbiZ4]

Problem with this is, that in future quotes of this post everybody will ask for the position of this sensational "tilt sensor". :rofl:

 

[B21]

Problem with this is, that in future quotes of this post everybody will ask for the position of this sensational "tilt sensor". :rofl:

So if the longitudinal dsc sensor senses tilt why is it not a tilt sensor? :tumbleweed: :rofl:

 

[RobbiZ4]

Problem with this is, that in future quotes of this post everybody will ask for the position of this sensational "tilt sensor". :rofl:

So if the longitudinal dsc sensor senses tilt why is it not a tilt sensor? :tumbleweed: :rofl:

Definitely not from or in the roof.
But up to now I could not identify how the car measures it's orientation. Maybe integrated in the DME or footwell modules.
Only the DWA (alarm system) has an integrated sensor against car-kidnpping by lifting it up.

Interesting:
https://www.bluewin.ch/de/digital/wohnst-du-am-huegel-kriegt-dein-auto-kein-update-1617411.html

 

[RobbiZ4]

So if the longitudinal dsc sensor sends tilt ...

[PEDANTIC]
It doesn't.
AFAIK it delivers an angle value of the car's position. It's the software IN the CTM, which decides to open or not.
[/PEDANTIC]

 

[B21]

So if the longitudinal dsc sensor sends tilt ...

[PEDANTIC]
It doesn't.
AFAIK it delivers an angle value of the car's position. It's the software IN the CTM, which decides to open or not.
[/PEDANTIC]

FWIW one time on tour parked on a steep hill the roof would not motor close..till it was level-ish..so definitely does happen

 

[RobbiZ4]

So if the longitudinal dsc sensor sends tilt ...

[PEDANTIC]
It doesn't.
AFAIK it delivers an angle value of the car's position. It's the software IN the CTM, which decides to open or not.
[/PEDANTIC]

FWIW one time on tour parked on a steep hill the roof would not motor close..till it was level-ish..so definitely does happen

Of course, the angle/tilt is checked.
However, there's no sensor in the roof for this; instead, the angle is constantly transmitted from the car via the CAN bus.