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e89 roof problem
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- Lifer
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e89 roof problem
Well what do you know, second (left hand side) one has two resistors attached!
The switch without the resistors was the one that was faulty, there was some discolouration of the contacts internally, possibly due to arcing. Therefore I think the switch had been over-heating and melted the solder from the resistors. When I pulled it apart, the resistors fell out without me noticing.
Thanks Robbie, your knowledge is peerless and I have found this really interesting (apart from spending an hour sorting through a box of rubbish trying to find two tiny resistors which I didn't)
The switch without the resistors was the one that was faulty, there was some discolouration of the contacts internally, possibly due to arcing. Therefore I think the switch had been over-heating and melted the solder from the resistors. When I pulled it apart, the resistors fell out without me noticing.
Thanks Robbie, your knowledge is peerless and I have found this really interesting (apart from spending an hour sorting through a box of rubbish trying to find two tiny resistors which I didn't)
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!
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!
- RobbiZ4
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e89 roof problem
No, never ever.
Just have a look at Wikipedia, which temperature is required to melt the solder. Much earlier the surrounding plastic would have been melted.
But - black or green or at least coloured traces in electronic components ar mostly signs of (water) corrosion.
Pardon, je suis Allemand
E89 Roof Maintenance
viewtopic.php?t=130932
Y3 Roof Diagnostic System
viewtopic.php?f=23&t=129048
E89 Roof Maintenance
viewtopic.php?t=130932
Y3 Roof Diagnostic System
viewtopic.php?f=23&t=129048
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Online
- Lifer
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- Joined: Wed Jan 20, 2021 7:20 pm
- Location: Spaldingski
e89 roof problem
So the mystery of the disappearing resistors looks like it will never be solved (or soldered).
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!
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!
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- Lifer
- Posts: 4049
- Joined: Sat May 25, 2013 8:27 pm
- Location: Stourbridge
e89 roof problem
Place i worked had smd soldering equipment. Circuit board had a template placed on top with small holes and solder powder was brushed into the holes.
Template was lifted off leaving small mounds of powder, then smd's were pick and placed by machine on the powder. Then went through oven to bond.
I would say some poor amounts of solder or quality with result a weak bond, resistors from vibration falling off.
Template was lifted off leaving small mounds of powder, then smd's were pick and placed by machine on the powder. Then went through oven to bond.
I would say some poor amounts of solder or quality with result a weak bond, resistors from vibration falling off.
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Online
- Lifer
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- Joined: Wed Jan 20, 2021 7:20 pm
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e89 roof problem
Makes me feel better. I am having sleepless nights over the vanishing resistorsflybobbie wrote: ↑Sat Jul 31, 2021 8:28 pm Place i worked had smd soldering equipment. Circuit board had a template placed on top with small holes and solder powder was brushed into the holes.
Template was lifted off leaving small mounds of powder, then smd's were pick and placed by machine on the powder. Then went through oven to bond.
I would say some poor amounts of solder or quality with result a weak bond, resistors from vibration falling off.
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!
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!
- Ole gits rule
- Lifer
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- Joined: Sat Oct 24, 2020 5:49 pm
- Location: Pont-y-Pwll
e89 roof problem
Snap with that, I worked with Fuji machines and the patterns for adding solder were normally good until someone let the paste run low or the oven temp was not correct.flybobbie wrote: ↑Sat Jul 31, 2021 8:28 pm Place i worked had smd soldering equipment. Circuit board had a template placed on top with small holes and solder powder was brushed into the holes.
Template was lifted off leaving small mounds of powder, then smd's were pick and placed by machine on the powder. Then went through oven to bond.
I would say some poor amounts of solder or quality with result a weak bond, resistors from vibration falling off.
M4 Vert in Yas Marina Blue
2011 23i M Sport Highline in Alpine White with Smart Top installed - Gone but not forgotten.
2011 23i M Sport Highline in Alpine White with Smart Top installed - Gone but not forgotten.
- Ole gits rule
- Lifer
- Posts: 4568
- Joined: Sat Oct 24, 2020 5:49 pm
- Location: Pont-y-Pwll
e89 roof problem
You sure you're still not going mad and we are all making this upPondrew wrote: ↑Sat Jul 31, 2021 10:04 pmMakes me feel better. I am having sleepless nights over the vanishing resistorsflybobbie wrote: ↑Sat Jul 31, 2021 8:28 pm Place i worked had smd soldering equipment. Circuit board had a template placed on top with small holes and solder powder was brushed into the holes.
Template was lifted off leaving small mounds of powder, then smd's were pick and placed by machine on the powder. Then went through oven to bond.
I would say some poor amounts of solder or quality with result a weak bond, resistors from vibration falling off.
M4 Vert in Yas Marina Blue
2011 23i M Sport Highline in Alpine White with Smart Top installed - Gone but not forgotten.
2011 23i M Sport Highline in Alpine White with Smart Top installed - Gone but not forgotten.
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- Lifer
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- RobbiZ4
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e89 roof problem
Well,
It's a 10 seconds DIY job, if you follow my instructions on ZROADSTER.COM.
No tools are required, the battery can stay connected, no video to watch, just read my posting.
https://www.zroadster.com/forum/threads ... st-3124720
It's a 10 seconds DIY job, if you follow my instructions on ZROADSTER.COM.
No tools are required, the battery can stay connected, no video to watch, just read my posting.
https://www.zroadster.com/forum/threads ... st-3124720
Pardon, je suis Allemand
E89 Roof Maintenance
viewtopic.php?t=130932
Y3 Roof Diagnostic System
viewtopic.php?f=23&t=129048
E89 Roof Maintenance
viewtopic.php?t=130932
Y3 Roof Diagnostic System
viewtopic.php?f=23&t=129048
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Online
- Lifer
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- Joined: Wed Jan 20, 2021 7:20 pm
- Location: Spaldingski
e89 roof problem
That's great but this thread was about micro-switches not salmon relays.nowool wrote: ↑Mon Jan 17, 2022 10:32 am https://www.youtube.com/watch?v=34_Wa3tXVMg
cheap and simple maintenance fix and recommended every 5 years or so.
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!
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!
- RobbiZ4
- Senior Member
- Posts: 1243
- Joined: Wed May 16, 2018 10:12 am
- Location: Munich
- Contact:
e89 roof problem
Indeed.
Pardon, je suis Allemand
E89 Roof Maintenance
viewtopic.php?t=130932
Y3 Roof Diagnostic System
viewtopic.php?f=23&t=129048
E89 Roof Maintenance
viewtopic.php?t=130932
Y3 Roof Diagnostic System
viewtopic.php?f=23&t=129048