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E89 roof relay change
- Smartbear
- Lifer
- Posts: 13685
- Joined: Wed Feb 05, 2014 6:54 pm
- Location: a barn in Somerset
E89 roof relay change
Hi, not wanting to watch the endless repeats on tv over the crimbo period, i thought I’d change the 2 salmon relays that operate the roof.
The first thing to do is clear the boot of any blankets etc You can see the salmon relays in this pic, the white coloured clips are fiddly to release in this position If you undo the T25 torx securing the mounting bracket the job becomes a lot easier
The relays pull out after releasing the white clips & wiggling a little
After swapping the relays over for a new pair it makes sense to check the roof still operates correctly
I also took the opportunity to look at the old relays in more detail, the orange cover pulls off after releasing some small clips underneath & you can now operate the relay manually to check for burnt contacts (which cause potentially massive problems if they weld together or go high resistance)
My car has covered 37k since 2013 & the contacts still looked good imho, as the pair only cost around £30 it’s cheap insurance to change them though
Rob
The first thing to do is clear the boot of any blankets etc You can see the salmon relays in this pic, the white coloured clips are fiddly to release in this position If you undo the T25 torx securing the mounting bracket the job becomes a lot easier
The relays pull out after releasing the white clips & wiggling a little
After swapping the relays over for a new pair it makes sense to check the roof still operates correctly
I also took the opportunity to look at the old relays in more detail, the orange cover pulls off after releasing some small clips underneath & you can now operate the relay manually to check for burnt contacts (which cause potentially massive problems if they weld together or go high resistance)
My car has covered 37k since 2013 & the contacts still looked good imho, as the pair only cost around £30 it’s cheap insurance to change them though
Rob
Last edited by Smartbear on Fri Dec 27, 2019 8:55 am, edited 1 time in total.
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
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- Senior Member
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E89 roof relay change
Nice job Rob.. and I like the bear blankets ! Rob
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- Senior Member
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E89 roof relay change
Helpful write up Rob. That reminds me I need to do mine since the car is 10 years old and god knows if they have been done! what's the cable with the red crimp connectors for?
2009 sdrive30i auto Sapphire Black / Coral Red
- Smartbear
- Lifer
- Posts: 13685
- Joined: Wed Feb 05, 2014 6:54 pm
- Location: a barn in Somerset
E89 roof relay change
Hi, I’ve wired in a plug for a smartcharger that stays in situSilverstar wrote: ↑Thu Dec 26, 2019 9:40 pm Helpful write up Rob. That reminds me I need to do mine since the car is 10 years old and god knows if they have been done! what's the cable with the red crimp connectors for?
Rob
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
- Timmyboybunter
- Senior Member
- Posts: 1477
- Joined: Fri Sep 21, 2018 12:35 pm
- Location: Bristol/Bath
E89 roof relay change
Presumably no issue doing this Rob? I did this on my E85 but read it was not recommended on the E89 and the connections in the bonnet should be used instead.
2012 VW Passat 1.4 Tsi Estate
2005 Mercedes CLK 55 AMG
2015 E89 BMW Z4 sDrive35iS (sold)
2010 E89 BMW Z4 sDrive30i (sold)
2003 E85 BMW Z4 3.0 (sold)
2005 Mercedes CLK 55 AMG
2015 E89 BMW Z4 sDrive35iS (sold)
2010 E89 BMW Z4 sDrive30i (sold)
2003 E85 BMW Z4 3.0 (sold)
- Smartbear
- Lifer
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- Joined: Wed Feb 05, 2014 6:54 pm
- Location: a barn in Somerset
E89 roof relay change
Someone that knows more about the complexities of the car will be along later i suspect, but my cars been fineTimmyboybunter wrote: ↑Thu Dec 26, 2019 11:13 pmPresumably no issue doing this Rob? I did this on my E85 but read it was not recommended on the E89 and the connections in the bonnet should be used instead.
Rob
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
- Timmyboybunter
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E89 roof relay change
That's good enough for me
2012 VW Passat 1.4 Tsi Estate
2005 Mercedes CLK 55 AMG
2015 E89 BMW Z4 sDrive35iS (sold)
2010 E89 BMW Z4 sDrive30i (sold)
2003 E85 BMW Z4 3.0 (sold)
2005 Mercedes CLK 55 AMG
2015 E89 BMW Z4 sDrive35iS (sold)
2010 E89 BMW Z4 sDrive30i (sold)
2003 E85 BMW Z4 3.0 (sold)
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E89 roof relay change
Evening all, as I'm new to zed ownership, how often should this be done? Mine is 2016 and has 37k on the clock - do these salmon relays have a particular name so that I don't get a weird look from my local auto factor?
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E89 roof relay change
What’s the part numbers for the relay, fancy order some myself, just in case!,
Toys: Z4 E89 35i in Blue / Ducati Multistrada 1260 DVT + love my watches
- Smartbear
- Lifer
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- Joined: Wed Feb 05, 2014 6:54 pm
- Location: a barn in Somerset
E89 roof relay change
Hi, part number starts with 12 RobFrankie169 wrote: ↑Fri Dec 27, 2019 12:13 am What’s the part numbers for the relay, fancy order some myself, just in case!,
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
- Smartbear
- Lifer
- Posts: 13685
- Joined: Wed Feb 05, 2014 6:54 pm
- Location: a barn in Somerset
E89 roof relay change
Hi, I’ve read an expert recommended every 5 to 6 years to be safe, it’s a nightmare if they go bad
Rob
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
- Stuartt
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E89 roof relay change
Good job well done there Bear
Stuart
Stuart
2004 3.0i SE Roadster , GONE to a good home
2010 e89 35i Sdrive M sport. GONE for salvage but has been reborn
2014 e89 35is M-Sport Design Pure Traction
2010 e89 35i Sdrive M sport. GONE for salvage but has been reborn
2014 e89 35is M-Sport Design Pure Traction
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E89 roof relay change
- enzed4
- Lifer
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E89 roof relay change
Thanks for the write up . Any need to disconnect battery before replacing the relays? I guess not...
Gone: 2010 35i DCT
Gone: 2008 2.5Si Sport
- Smartbear
- Lifer
- Posts: 13685
- Joined: Wed Feb 05, 2014 6:54 pm
- Location: a barn in Somerset
E89 roof relay change
I left the battery alone, there’s nothing between the relay & battery that lets you turn off the power if a relay mechanically sticks up via a welded together contact, that’s why it’s such a nightmare if that occurs. The roof motor will run until the battery flattens or the motor catches fire & turning the car off won’t stop it!
A replacement motor from bmw is over £2500
Rob
Last edited by Smartbear on Tue Mar 24, 2020 9:24 pm, edited 1 time in total.
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold