Hi all,
Recently purchased a 2003 Z4 2.5i (55k miles) and requiring advice on motor spares:
Problem Overview:
1) Pressing the convertible button inside the cabin and the whole system is temperamental - sometimes it engages the top roof motor mechanism and sometimes it doesn't. I checked the fuses for good connection and all seem in order. The roof only disengages from the windscreen frame about 2-3inches then everything stops. The 'roof down' button then begins to flash. No activity happens in the rear electric-hydraulic roof compartment.
2) I am aware of the emergency hydraulic release chord in the boot however cannot keep using this for the obvious reasons of wanting the whole system to work correctly.
3) I am also aware of the boot switch on the bulkhead between the boot and cabin where the manually adjustable boot rack lowers and engages a small switch to inform the system roof can now be lowered in to the rear roof compartment. This seems to be in working order.
4) Once lowered the roof manually using the hydraulic release chord, I press the flashing 'roof-open' button to engage the locking mechanism to hold down the roof. Roof-open button now stops flashing.
5) Once again when I want to close the roof I press the 'roof-close', pull the release chord, manually lift the roof to the windscreen frame, then press the flashing roof-close button to lock the roof to the windscreen frame.
Enquiry:
(i) Does anyone know where I can get affordable spares for the motor?
(ii) Would it be of any value to try and test the motor using a car battery or (from your wealth of experience) is there any point in doing that and worth simply purchasing a new motor and therefore referring back to (i)?
(iii) Has anyone attempted and successfully restored the rear electric-hydraulic motor unit? From my understanding drain hole blocks up and water floods the motor unit?
Can anyone offer me any sound advice and give recommendations?
Best regards,
David.
Recently purchased a 2003 Z4 2.5i (55k miles) and requiring advice on motor spares:
Problem Overview:
1) Pressing the convertible button inside the cabin and the whole system is temperamental - sometimes it engages the top roof motor mechanism and sometimes it doesn't. I checked the fuses for good connection and all seem in order. The roof only disengages from the windscreen frame about 2-3inches then everything stops. The 'roof down' button then begins to flash. No activity happens in the rear electric-hydraulic roof compartment.
2) I am aware of the emergency hydraulic release chord in the boot however cannot keep using this for the obvious reasons of wanting the whole system to work correctly.
3) I am also aware of the boot switch on the bulkhead between the boot and cabin where the manually adjustable boot rack lowers and engages a small switch to inform the system roof can now be lowered in to the rear roof compartment. This seems to be in working order.
4) Once lowered the roof manually using the hydraulic release chord, I press the flashing 'roof-open' button to engage the locking mechanism to hold down the roof. Roof-open button now stops flashing.
5) Once again when I want to close the roof I press the 'roof-close', pull the release chord, manually lift the roof to the windscreen frame, then press the flashing roof-close button to lock the roof to the windscreen frame.
Enquiry:
(i) Does anyone know where I can get affordable spares for the motor?
(ii) Would it be of any value to try and test the motor using a car battery or (from your wealth of experience) is there any point in doing that and worth simply purchasing a new motor and therefore referring back to (i)?
(iii) Has anyone attempted and successfully restored the rear electric-hydraulic motor unit? From my understanding drain hole blocks up and water floods the motor unit?
Can anyone offer me any sound advice and give recommendations?
Best regards,
David.
It was a while ago!!