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E89 roof relay change

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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Huzee4
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E89 roof relay change

Post by Huzee4 » Tue Mar 30, 2021 7:43 pm

The relays I replaced looked like new, inside and out, however as Smartbear puts it the relays are cheap the roof motor isn’t ! :thumbsup:
Steve

E85 2.5 SE Maldives blue
E89 20i Estoril blue
E89 35iS Alpine White ( Current Zed )

Penpro
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E89 roof relay change

Post by Penpro » Tue Mar 30, 2021 7:51 pm

Thanks guys. Will get them ordered. :thumbsup:

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RobbiZ4
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E89 roof relay change

Post by RobbiZ4 » Fri Jul 23, 2021 12:27 pm

For all those new to the Z4 E89, I'll push this topic:

Get your salmon relays replaced by new ones every 5 years.
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More details, an installation instruction as well as background info by the following translation link:
https://translate.google.com/translate? ... ue.133521/
Pardon, je suis Allemand :oops:
:ant:
E89 Roof Maintenance
viewtopic.php?t=130932

Y3 Roof Diagnostic System
viewtopic.php?f=23&t=129048
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Vagueante
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E89 roof relay change

Post by Vagueante » Fri Jul 23, 2021 3:43 pm

Did this last week :)

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enuff_zed
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E89 roof relay change

Post by enuff_zed » Fri Jul 23, 2021 3:44 pm

RobbiZ4 wrote: Fri Jul 23, 2021 12:27 pm For all those new to the Z4 E89, I'll push this topic:

Get your salmon relays replaced by new ones every 5 years.
Cheers Robbi,
This kind of thread needs to have a regular revival date set on it. :thumbsup:
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E89 roof relay change

Post by Deebs » Sat Jul 24, 2021 11:56 am

enuff_zed wrote: Fri Jul 23, 2021 3:44 pm
RobbiZ4 wrote: Fri Jul 23, 2021 12:27 pm For all those new to the Z4 E89, I'll push this topic:

Get your salmon relays replaced by new ones every 5 years.
Cheers Robbi,
This kind of thread needs to have a regular revival date set on it. :thumbsup:
I changed mine recently and because I’m a nerd I pulled the covers off the old ones to inspect the contacts. One was fine, but the other was well on its way out. Because they are not the highest quality (even the ones purchased through BMW) the alignment of the contacts was off. The contact surface was therefore reduced to about 50%, which over time clearly saw the current concentrated over a smaller area, resulting in quite a bit of arcing and subsequently pitting on the contacts. £18 we’ll spent (even though there was no symptoms suggesting a change was needed).

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RobbiZ4
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E89 roof relay change

Post by RobbiZ4 » Sat Jul 24, 2021 3:58 pm

:thumbsup:
Pardon, je suis Allemand :oops:
:ant:
E89 Roof Maintenance
viewtopic.php?t=130932

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

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E89 roof relay change

Post by step_change » Sun Jul 25, 2021 11:12 am

Going to buy two and do mine when I get paid this week. I have been intending to do this job for ages and not got round to it.

Literally just swap them out by removing old ones and putting the news ones in? Battery can be left connected etc?
Gone :( : 2013 35is, Melbourne Red, DCT, Nav, Comfort pack
Gone: 2007 2.5is, Montego Blue, Auto, Nav

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Huzee4
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E89 roof relay change

Post by Huzee4 » Sun Jul 25, 2021 12:38 pm

step_change wrote: Sun Jul 25, 2021 11:12 am Going to buy two and do mine when I get paid this week. I have been intending to do this job for ages and not got round to it.

Literally just swap them out by removing old ones and putting the news ones in? Battery can be left connected etc?
It’s as simple as that, and I’m useless with any form of DIY :thumbsup:
Steve

E85 2.5 SE Maldives blue
E89 20i Estoril blue
E89 35iS Alpine White ( Current Zed )

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RobbiZ4
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E89 roof relay change

Post by RobbiZ4 » Sun Jul 25, 2021 1:33 pm

step_change wrote: Sun Jul 25, 2021 11:12 am Literally just swap them out by removing old ones and putting the news ones in? Battery can be left connected etc?
Yes, correct.
But dont use any tool, you can brick the red fuse box next to the battery.

Have a look:
https://www-zroadster-com.translate.goo ... ax,nv,elem
RobbiZ4 wrote: Fri Jul 23, 2021 12:27 pm ...
More details, an installation instruction as well as background info by the following translation link:
https://translate.google.com/translate? ... ue.133521/
Pardon, je suis Allemand :oops:
:ant:
E89 Roof Maintenance
viewtopic.php?t=130932

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

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E89 roof relay change

Post by step_change » Mon Jul 26, 2021 10:27 am

Ok, thank you! I will order the parts later this week and fit them straight away. I am all for simple, preventative maintenance.
Gone :( : 2013 35is, Melbourne Red, DCT, Nav, Comfort pack
Gone: 2007 2.5is, Montego Blue, Auto, Nav

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E89 roof relay change

Post by enuff_zed » Mon Jul 26, 2021 11:28 am

RobbiZ4 wrote: Sun Jul 25, 2021 1:33 pm
step_change wrote: Sun Jul 25, 2021 11:12 am Literally just swap them out by removing old ones and putting the news ones in? Battery can be left connected etc?
Yes, correct.
But dont use any tool, you can brick the red fuse box next to the battery.
I'd go further and say get rid of any metal objects in the boot first!
Hell, even an umbrella falling across the battery could ruin your day if it bridges the terminals with a metal part.
I actually have an old piece of rubber floor mat that I lay across the top of the battery on any car I'm tinkering with.
After welding a spanner to the wing of an old Capri I learned the hard way. :roll:
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:
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E89 roof relay change

Post by RobbiZ4 » Mon Jul 26, 2021 2:00 pm

:thumbsup:
Pardon, je suis Allemand :oops:
:ant:
E89 Roof Maintenance
viewtopic.php?t=130932

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

craigdm
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E89 roof relay change

Post by craigdm » Mon Aug 23, 2021 9:16 am

Is there not an easier to follow UK guide to replacing these?
Maybe including where to buy and what spec of part?
Just a thought... :D
Z3 rare 2L Straight 6. Should have kept it!
E85 3.0Si sold back in 2014. Should have kept it!
E89 20i just arrived 2021

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E89 roof relay change

Post by flybobbie » Mon Aug 23, 2021 10:06 am

Jesus it easy enough.
Go to BMW dealer, they have hundreds in stock.
Seems like they fail all the time, used on many vehicles.
Then just lift floor in boot, pull relays out plug in new, 30 second job.
They are even pink, to make the job easier.
Last edited by flybobbie on Mon Aug 23, 2021 10:18 am, edited 1 time in total.

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