Roof motor

[Keavo69]

Hi all
The roof motor on the Z3 seems slow in operating this morning the roof wouldn’t go back up it was very cold could that be a factor? got back to the car later this afternoon and the roof went down okay any suggestions would be appreciated
Cheers marv

 

[colb]

Cold may have had an effect, you should avoid opening it when cold as there is a high risk of cracking the rear window material. Always best to heat the interior up with the heater for a good while before lowering the hood.

 

[Keavo69]

Thanks colb
Roof seems to be working okay again now is it a good idea to take the motor out and service it in any way ?
Cheers marv

 

[colb]

Not much you can do regarding servicing the motor/pump apart from checking the oil level in it, there shouldn't be any loss of oil so a dropping level may well indicate a leak in the lines or ram(s). If its intermittent then best to inspect its wiring for any breaks in the wires, any found should be repaired using solder joints and heatshrink. Oem parts diagrams herehttps://www.realoem.com/bmw/enUS/partgrp?id=CH32-EUR-02-2000-Z3-BMW-Z3_28&mg=54

Not had the pleasure of sorting a Z3 hood motor out mine is a manual hood, however have sorted my Z4 hood motor and relocated it to the boot, thats a job and a half.

Do you have to press the brake pedal when you open or close the hood, if you do it might be worth checking the operation of the brake light switch at the pedal, if thats iffy it might be your problem.