E89 roof relay change

Smartbear · Post by **Smartbear** » Thu Dec 26, 2019 4:39 pm

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

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You can see the salmon relays in this pic, the white coloured clips are fiddly to release in this position

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If you undo the T25 torx securing the mounting bracket the job becomes a lot easier

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The relays pull out after releasing the white clips & wiggling a little

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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)

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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

clarker63 · Post by **clarker63** » Thu Dec 26, 2019 7:53 pm

Nice job Rob.. and I like the bear blankets !

Rob

Silverstar · Post by **Silverstar** » 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?

Smartbear · Post by **Smartbear** » Thu Dec 26, 2019 11:00 pm

Silverstar 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?

Hi, I’ve wired in a plug for a smartcharger that stays in situ

Rob

Timmyboybunter · Post by **Timmyboybunter** » Thu Dec 26, 2019 11:13 pm

Smartbear wrote: ↑Thu Dec 26, 2019 11:00 pm Hi, I’ve wired in a plug for a smartcharger that stays in situ
Rob

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.

Smartbear · Post by **Smartbear** » Thu Dec 26, 2019 11:40 pm

Timmyboybunter wrote: ↑Thu Dec 26, 2019 11:13 pm
Smartbear wrote: ↑Thu Dec 26, 2019 11:00 pm Hi, I’ve wired in a plug for a smartcharger that stays in situ
Rob
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.

Someone that knows more about the complexities of the car will be along later i suspect, but my cars been fine

Rob

Timmyboybunter · Post by **Timmyboybunter** » Fri Dec 27, 2019 12:02 am

That's good enough for me

Jasonn · Post by **Jasonn** » Fri Dec 27, 2019 12:09 am

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?

Frankie169 · Post by **Frankie169** » Fri Dec 27, 2019 12:13 am

What’s the part numbers for the relay, fancy order some myself, just in case!,

Smartbear · Post by **Smartbear** » Fri Dec 27, 2019 12:51 am

Frankie169 wrote: ↑Fri Dec 27, 2019 12:13 am What’s the part numbers for the relay, fancy order some myself, just in case!,

Hi, part number starts with 12

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Rob

Smartbear · Post by **Smartbear** » Fri Dec 27, 2019 12:52 am

Jasonn wrote: ↑Fri Dec 27, 2019 12:09 am 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?

Hi, I’ve read an expert recommended every 5 to 6 years to be safe, it’s a nightmare if they go bad

Rob

Stuartt · Post by **Stuartt** » Fri Dec 27, 2019 1:00 am

Good job well done there Bear

Stuart

Jasonn · Post by **Jasonn** » Fri Dec 27, 2019 8:33 am

Smartbear wrote: ↑Fri Dec 27, 2019 12:52 am
Jasonn wrote: ↑Fri Dec 27, 2019 12:09 am 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?
Hi, I’ve read an expert recommended every 5 to 6 years to be safe, it’s a nightmare if they go bad
Rob

Thanks for the heads up

enzed4 · Post by **enzed4** » Fri Dec 27, 2019 9:00 am

Thanks for the write up

. Any need to disconnect battery before replacing the relays? I guess not...

Smartbear · Post by **Smartbear** » Fri Dec 27, 2019 11:10 am

enzed4 wrote: ↑Fri Dec 27, 2019 9:00 am Thanks for the write up . Any need to disconnect battery before replacing the relays? I guess not...

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

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