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Salmon Relay Change

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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Dave 2 dogs
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Salmon Relay Change

Post by Dave 2 dogs » Thu Dec 30, 2021 11:00 am

Excellent
Thanks guys
It seems a MUST DO job . Thanks for the info :thumbsup:
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BeardyJon
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Salmon Relay Change

Post by BeardyJon » Thu Dec 30, 2021 1:22 pm

Yeah definitely must do. The salmon relays eventually basically rust shut meaning the roof motor runs constantly and you can't open the boot and your battery drains until its dead. So... replace them relays!
2012 E89 sDrive20i M Sport Celtic Tuning Stage 3 Remap
2008 E86 Z4 M Sport 2.0i - Gone
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Salmon Relay Change

Post by Smartbear » Thu Dec 30, 2021 2:42 pm

BeardyJon wrote: ↑Thu Dec 30, 2021 1:22 pm Yeah definitely must do. The salmon relays eventually basically rust shut meaning the roof motor runs constantly and you can't open the boot and your battery drains until its dead. So... replace them relays!


It’s not rust that’s the problem, the large current draw burns the contacts of the relays & they can end up arc welded together.
Rob
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e89 Sdrive 30i, this ones busted, pass me another...
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Salmon Relay Change

Post by peeblezZ4 » Thu Dec 30, 2021 6:34 pm

Stuart, you don’t actually need to unscrew anything, there’s a quick release lever. If you push that the whole housing with the relays in it slides out, switch the relays over then slide back in place until it locks home :thumbsup:

Thanks Andy. ETA for the relay delivery is 6th Jan so I'll get it done then. :thumbsup:
Current - Garage empty :oops:
Previous:
'12 Space Grey 640i Auto SE Convertible :? Sold March '24
'11 E89 Sapphire Black 35i auto M-Sport :heat: Sold August '23
'13 E89 Valencia Orange 2.0 Auto M-Sport :?
'03 E85 Titanium Silver 2.5i Auto :?
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BeardyJon
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Salmon Relay Change

Post by BeardyJon » Fri Dec 31, 2021 12:46 am

Smartbear wrote: ↑Thu Dec 30, 2021 2:42 pm
BeardyJon wrote: ↑Thu Dec 30, 2021 1:22 pm Yeah definitely must do. The salmon relays eventually basically rust shut meaning the roof motor runs constantly and you can't open the boot and your battery drains until its dead. So... replace them relays!


It’s not rust that’s the problem, the large current draw burns the contacts of the relays & they can end up arc welded together.
Rob
Same thing...
2012 E89 sDrive20i M Sport Celtic Tuning Stage 3 Remap
2008 E86 Z4 M Sport 2.0i - Gone
2003 E46 316ti M Sport - Gone
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Salmon Relay Change

Post by Smartbear » Fri Dec 31, 2021 12:51 am

BeardyJon wrote: ↑Fri Dec 31, 2021 12:46 am
Smartbear wrote: ↑Thu Dec 30, 2021 2:42 pm
BeardyJon wrote: ↑Thu Dec 30, 2021 1:22 pm Yeah definitely must do. The salmon relays eventually basically rust shut meaning the roof motor runs constantly and you can't open the boot and your battery drains until its dead. So... replace them relays!


It’s not rust that’s the problem, the large current draw burns the contacts of the relays & they can end up arc welded together.
Rob
Same thing...
The end result's the same, different means of getting there :thumbsup:
Rob
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e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
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e85 3.0si sold
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Salmon Relay Change

Post by B21 » Fri Dec 31, 2021 10:17 am

Smartbear wrote: ↑Fri Dec 31, 2021 12:51 am
BeardyJon wrote: ↑Fri Dec 31, 2021 12:46 am
Smartbear wrote: ↑Thu Dec 30, 2021 2:42 pm

It’s not rust that’s the problem, the large current draw burns the contacts of the relays & they can end up arc welded together.
Rob
Same thing...
The end result's the same, different means of getting there :thumbsup:
Rob
SmartBear is being generous…actually it does matter…

With rust associated failure (if it ever happened) the circuit would fail open..ie the roof fails to operate..

However with arcing the danger is the contacts weld together making the pump run to oblivion ..

Ergo it does matter.. :thumbsup:
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is :thumbsup:
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BeardyJon
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Salmon Relay Change

Post by BeardyJon » Fri Dec 31, 2021 10:59 am

B21 wrote: ↑Fri Dec 31, 2021 10:17 am Ergo it does matter.. :thumbsup:
Everyone loves a pedant. :poke:
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Salmon Relay Change

Post by B21 » Fri Dec 31, 2021 2:59 pm

BeardyJon wrote: ↑Fri Dec 31, 2021 10:59 am
B21 wrote: ↑Fri Dec 31, 2021 10:17 am Ergo it does matter.. :thumbsup:
Everyone loves a pedant. :poke:
Happy New Year to you too :rofl:

“Never let the facts get in the way of an unsubstantiated opinion” :thumbsup:
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
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BeardyJon
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Salmon Relay Change

Post by BeardyJon » Fri Dec 31, 2021 6:20 pm

B21 wrote: ↑Fri Dec 31, 2021 2:59 pm
BeardyJon wrote: ↑Fri Dec 31, 2021 10:59 am
B21 wrote: ↑Fri Dec 31, 2021 10:17 am Ergo it does matter.. :thumbsup:
Everyone loves a pedant. :poke:
Happy New Year to you too :rofl:

“Never let the facts get in the way of an unsubstantiated opinion” :thumbsup:
Interesting that you’re suddenly so concerned about facts when you got caught trying to flog an overpriced Z4 lying about its condition and not disclosing its major mechanical problems…
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Salmon Relay Change

Post by B21 » Fri Dec 31, 2021 6:32 pm

BeardyJon wrote: ↑Fri Dec 31, 2021 6:20 pm
B21 wrote: ↑Fri Dec 31, 2021 2:59 pm
BeardyJon wrote: ↑Fri Dec 31, 2021 10:59 am Everyone loves a pedant. :poke:
Happy New Year to you too :rofl:

“Never let the facts get in the way of an unsubstantiated opinion” :thumbsup:
Interesting that you’re suddenly so concerned about facts when you got caught trying to flog an overpriced Z4 lying about its condition and not disclosing its major mechanical problems…

Oohhhh…meoww…goodwill to all men :rofl: :thumbsup:
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is :thumbsup:
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peeblezZ4
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Salmon Relay Change

Post by peeblezZ4 » Wed Jan 26, 2022 3:00 pm

Stuart, you don’t actually need to unscrew anything, there’s a quick release lever. If you push that the whole housing with the relays in it slides out, switch the relays over then slide back in place until it locks home :thumbsup:
[/quote]
Hi Andy. Went out and swapped in the new ones earlier today - thanks for your tip. A wee push out of the plastic lever and then lift the housing out after pushing back the bracket wee bit to get enough room. :thumbsup:
Current - Garage empty :oops:
Previous:
'12 Space Grey 640i Auto SE Convertible :? Sold March '24
'11 E89 Sapphire Black 35i auto M-Sport :heat: Sold August '23
'13 E89 Valencia Orange 2.0 Auto M-Sport :?
'03 E85 Titanium Silver 2.5i Auto :?
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Salmon Relay Change

Post by Argyll Andy » Wed Jan 26, 2022 4:55 pm

peeblezZ4 wrote: ↑Wed Jan 26, 2022 3:00 pm Stuart, you don’t actually need to unscrew anything, there’s a quick release lever. If you push that the whole housing with the relays in it slides out, switch the relays over then slide back in place until it locks home :thumbsup:
Hi Andy. Went out and swapped in the new ones earlier today - thanks for your tip. A wee push out of the plastic lever and then lift the housing out after pushing back the bracket wee bit to get enough room. :thumbsup:
[/quote]

Glad it was nice and easy Stuart and now some peace of mind knowing they’re done :thumbsup:

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    Salmon Relay Change

    Post by RobbiZ4 » Wed Jan 26, 2022 5:15 pm

    flybobbie wrote: ↑Mon Dec 27, 2021 2:09 pm ...but later found there is a component across the coil.
    Can someone look at an old relay, is it a diode or resistor?
    Did anybody answer this question before?
    Well, there is a resistor in parallel to the coil.
    _Relay.jpg
    _Relay.jpg (31.59 KiB) Viewed 711 times
    More background details:
    viewtopic.php?p=1900147#p1900147
    Last edited by RobbiZ4 on Wed Jan 26, 2022 6:30 pm, edited 1 time in total.
    Pardon, je suis Allemand :oops:
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    E89 Roof Maintenance
    viewtopic.php?t=130932

    Y3 Roof Diagnostic System
    viewtopic.php?f=23&t=129048
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    Salmon Relay Change

    Post by B21 » Wed Jan 26, 2022 5:45 pm

    RobbiZ4 wrote: ↑Wed Jan 26, 2022 5:15 pm
    flybobbie wrote: ↑Mon Dec 27, 2021 2:09 pm ...but later found there is a component across the coil.
    Can someone look at an old relay, is it a diode or resistor?
    Did anybody answer this question before?
    Well, there is a resistor in parallel to the coil.
    _Relay.jpg

    The CTM sends a short current pulse to all the relays and solenoids before starting a roof operation. With these resistors, it can check the availability of these components as well as the wires to it. Same with most of the different sensors.

    On the following charts, these pulses can be seen for the 3 solenoids of the hydraulic pump on chart 3...5, later on chart 1+2 for both relays.
    Bild1.jpg
    Robbi..not sure if you have seen the UK TV program 'Master Mind' https://www.bbc.co.uk/programmes/b006mk1s

    You should do the 20 questions on ' The life and times of the E89 Roof System' :thumbsup:
    We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
    A very modified Atacama Yellow 35is :thumbsup:
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