Not joined yet? Register for free and enjoy features such as alerts, private messaging and viewing latest posts and topics.

SPAM: Individual water problem, please help

How-To articles are in here.
User avatar
RobbiZ4
Senior Member
Senior Member
Posts: 1243
Joined: Wed May 16, 2018 10:12 am
Location: Munich
Contact:

SPAM: Individual water problem, please help

Post by RobbiZ4 » Wed Aug 18, 2021 7:52 am

Maintenance thread teared down due to spam posts.
:headbang:
Last edited by RobbiZ4 on Mon Apr 08, 2024 7:13 am, edited 87 times in total.
Pardon, je suis Allemand :oops:
:ant:
E89 Roof Maintenance
viewtopic.php?t=130932

Y3 Roof Diagnostic System
viewtopic.php?f=23&t=129048
Image

User avatar
enuff_zed
Lifer
Lifer
Posts: 15130
Joined: Wed Oct 26, 2016 11:05 am
Location: Attleborough, Norfolk

E89: Retractable Hardtop (roof) Maintenance

Post by enuff_zed » Wed Aug 18, 2021 8:02 am

Appreciate your time to pull together all your previous help into one place.
Thank you. :thumbsup:
HQ of 'Norfolk Zed Rescue'.
Always happy to help if I can.

If the forum helped you, why not help the forum back. Thats the Z4 way! :thumbsup:
Image

Pbondar

E89: Retractable Hardtop (roof) Maintenance

Post by Pbondar » Wed Aug 18, 2021 9:12 am

Great resource..probably will save n thousand posts per year (well maybe).. :thumbsup:

User avatar
RobbiZ4
Senior Member
Senior Member
Posts: 1243
Joined: Wed May 16, 2018 10:12 am
Location: Munich
Contact:

E89: Retractable Hardtop (roof) Maintenance

Post by RobbiZ4 » Wed Aug 18, 2021 9:24 am

Pbondar wrote: Wed Aug 18, 2021 9:12 am Great resource..probably will save n thousand posts per year (well maybe).. :thumbsup:
But then it gets boring in this forum and I might only come back by once a year for the annual BONGfest. :tumbleweed:
Last edited by RobbiZ4 on Wed Aug 18, 2021 10:01 am, edited 1 time in total.
Pardon, je suis Allemand :oops:
:ant:
E89 Roof Maintenance
viewtopic.php?t=130932

Y3 Roof Diagnostic System
viewtopic.php?f=23&t=129048
Image

Pondrew
Lifer
Lifer
Posts: 8713
Joined: Wed Jan 20, 2021 7:20 pm
Location: Spaldingski

E89: Retractable Hardtop (roof) Maintenance

Post by Pondrew » Wed Aug 18, 2021 9:48 am

enuff_zed wrote: Wed Aug 18, 2021 8:02 am Appreciate your time to pull together all your previous help into one place.
Thank you. :thumbsup:
Agreed.
All good things come to those who wait. I'm really impatient which explains a lot.

F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!

flybobbie
Lifer
Lifer
Posts: 4081
Joined: Sat May 25, 2013 8:27 pm
Location: Stourbridge

E89: Retractable Hardtop (roof) Maintenance

Post by flybobbie » Wed Aug 18, 2021 7:43 pm

Any fault obd saying it's a Hall switch, probably a break in the wiring or a connector loose.
That was the two roof faults my car has had.

User avatar
RobbiZ4
Senior Member
Senior Member
Posts: 1243
Joined: Wed May 16, 2018 10:12 am
Location: Munich
Contact:

E89: Retractable Hardtop (roof) Maintenance

Post by RobbiZ4 » Wed Aug 18, 2021 8:07 pm

flybobbie wrote: Wed Aug 18, 2021 7:43 pm Any fault obd saying it's a Hall switch, probably a break in the wiring or a connector loose.
That was the two roof faults my car has had.
Yes, but this is a bit tricky! The CTM partially notes down a wrong(!) hall sensor fault, if a timeout occurs. Nonsense, sourced by the microswitches coupling lock.
Pardon, je suis Allemand :oops:
:ant:
E89 Roof Maintenance
viewtopic.php?t=130932

Y3 Roof Diagnostic System
viewtopic.php?f=23&t=129048
Image

flybobbie
Lifer
Lifer
Posts: 4081
Joined: Sat May 25, 2013 8:27 pm
Location: Stourbridge

E89: Retractable Hardtop (roof) Maintenance

Post by flybobbie » Wed Aug 18, 2021 9:30 pm

RobbiZ4 wrote: Wed Aug 18, 2021 8:07 pm
flybobbie wrote: Wed Aug 18, 2021 7:43 pm Any fault obd saying it's a Hall switch, probably a break in the wiring or a connector loose.
That was the two roof faults my car has had.
Yes, but this is a bit tricky! The CTM partially notes down a wrong(!) hall sensor fault, if a timeout occurs. Nonsense, sourced by the microswitches coupling lock.
Yes when i replaced salmon relay the obd readout said there were five faults on hall and microswitches (there were non).
All cleared after i replaced the relays.

User avatar
RobbiZ4
Senior Member
Senior Member
Posts: 1243
Joined: Wed May 16, 2018 10:12 am
Location: Munich
Contact:

E89: Retractable Hardtop (roof) Maintenance

Post by RobbiZ4 » Wed Aug 18, 2021 11:39 pm

Salmon relay (part no. 12631742690)
Relais Hardtop-Antrieb K18363a und K18364a(1).jpg
Relais Hardtop-Antrieb K18363a und K18364a(1).jpg (58.8 KiB) Viewed 11782 times
Pardon, je suis Allemand :oops:
:ant:
E89 Roof Maintenance
viewtopic.php?t=130932

Y3 Roof Diagnostic System
viewtopic.php?f=23&t=129048
Image

Silverstar
Senior Member
Senior Member
Posts: 2764
Joined: Fri Jun 21, 2019 10:06 am
Location: Costa Del Sol

E89: Retractable Hardtop (roof) Maintenance

Post by Silverstar » Thu Aug 19, 2021 1:24 am

Helpful post. For ease of reference maybe it needs to made a sticky / pinned.
2009 sdrive30i auto Sapphire Black / Coral Red

User avatar
enuff_zed
Lifer
Lifer
Posts: 15130
Joined: Wed Oct 26, 2016 11:05 am
Location: Attleborough, Norfolk

E89: Retractable Hardtop (roof) Maintenance

Post by enuff_zed » Thu Aug 19, 2021 7:57 am

RobbiZ4 wrote: Wed Aug 18, 2021 11:39 pm Salmon relay (part no. 12631742690)
Relais Hardtop-Antrieb K18363a und K18364a(1).jpg
Robbi, brilliant change of avatar. :rofl: :thumbsup:
HQ of 'Norfolk Zed Rescue'.
Always happy to help if I can.

If the forum helped you, why not help the forum back. Thats the Z4 way! :thumbsup:
Image

flybobbie
Lifer
Lifer
Posts: 4081
Joined: Sat May 25, 2013 8:27 pm
Location: Stourbridge

E89: Retractable Hardtop (roof) Maintenance

Post by flybobbie » Thu Aug 19, 2021 6:43 pm

Something that never registered or noticed when i opened up relay, was the rectangular object molded on the case paralleling the coil.
Is this a suppression diode or a continuity check resistor?

User avatar
RobbiZ4
Senior Member
Senior Member
Posts: 1243
Joined: Wed May 16, 2018 10:12 am
Location: Munich
Contact:

E89: Retractable Hardtop (roof) Maintenance

Post by RobbiZ4 » Thu Aug 19, 2021 6:58 pm

flybobbie wrote: Thu Aug 19, 2021 6:43 pm Something that never registered or noticed when i opened up relay, was the rectangular object molded on the case paralleling the coil.
Is this a suppression diode or a continuity check resistor?
It's a small resistor with about 80 ohms.
Pardon, je suis Allemand :oops:
:ant:
E89 Roof Maintenance
viewtopic.php?t=130932

Y3 Roof Diagnostic System
viewtopic.php?f=23&t=129048
Image

User avatar
enuff_zed
Lifer
Lifer
Posts: 15130
Joined: Wed Oct 26, 2016 11:05 am
Location: Attleborough, Norfolk

E89: Retractable Hardtop (roof) Maintenance

Post by enuff_zed » Thu Aug 19, 2021 7:16 pm

RobbiZ4 wrote: Thu Aug 19, 2021 6:58 pm
flybobbie wrote: Thu Aug 19, 2021 6:43 pm Something that never registered or noticed when i opened up relay, was the rectangular object molded on the case paralleling the coil.
Is this a suppression diode or a continuity check resistor?
It's a small resistor with about 80 ohms.
Does that act as a 'damper' to stop arcing?
Same as a condenser on an old points ignition system?
HQ of 'Norfolk Zed Rescue'.
Always happy to help if I can.

If the forum helped you, why not help the forum back. Thats the Z4 way! :thumbsup:
Image

flybobbie
Lifer
Lifer
Posts: 4081
Joined: Sat May 25, 2013 8:27 pm
Location: Stourbridge

E89: Retractable Hardtop (roof) Maintenance

Post by flybobbie » Thu Aug 19, 2021 7:22 pm

Well a diode would be used to prevent back emf destroying any transistors driving the coil, coil acts bit like ignition coil.
Fairly standard practice with relays on dc circuits.
Resistor might be used to check circuit continuity for monitoring purposes.
Could these resistors break down causing roof to stop.
My roof just stop on relay "failure".
My obd reader said relay failure, it's how i found out to replace the relays.

I tested relays on bench, they worked fine, hardly any resistance on contacts.
But does resistance of coil connections vary from faulty and new.

Post Reply