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89 928 S4 electricals

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Old 07-28-2019, 08:47 AM
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Mark Sexton
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Default 89 928 S4 electricals

Just got my car back from the body shop after a 4 month respray(paint was vandalized &#128530 car looks and runs great but now dash not working properly. Tachometer,speedometer,fuel gauge and digital readout not working at all. Lights, oil ,battery and all warning lights work. Door mirrors non functional but power windows working. Fan works but a/c compressor not coming on. Everything worked perfectly before. The only problem I had previously was the battery going dead if not driven regularly or kept on a trickle charger. Checked all fuses. No local Porsche specialists
Old 07-28-2019, 09:12 PM
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Shark2626
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Old 07-28-2019, 09:27 PM
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Kiln_Red
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What is your location? Was the windshield and/or dash pulled? Is the voltmeter working? The mirror wires were probably cut and could've been improperly spliced, or not even spliced back together at all.
Old 07-28-2019, 09:34 PM
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Shark2626
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Old 07-28-2019, 09:56 PM
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Kiln_Red
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Suffice it to say that I think the shop might not have had experience with 928s, yes.
Old 07-28-2019, 10:03 PM
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Old 07-28-2019, 11:01 PM
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Originally Posted by Shark2626
Are you saying that the flags had a straight harness and cannot be removed without cutting the wire harness?
Swapping flag mirrors for GTS mirrors requires replacing the connectors for the mirrors motors. However,

Those that lack imagination or patience - or are getting paid flat rate by the insurance company - cut the door harness in half in order to remove side mirrors for painting then but splice the harness back together later. The correct way to remove the mirrors is to de-pin the connectors.

Here’s the *wrong* way:

Old 07-28-2019, 11:13 PM
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Old 07-28-2019, 11:14 PM
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Originally Posted by Mark Sexton
Tachometer,speedometer,fuel gauge and digital readout not working at all. Lights, oil ,battery and all warning lights work. Door mirrors non functional but power windows working. Fan works but a/c compressor not coming on... Checked all fuses.


You are *sure* about:
#7 5A
#10 5A
#24 7.5A
#44 5A

Were any of the fuse bodies cloudy when you pulled them to check?

No local Porsche specialists
Are you sure? There might be a competent Rennlister near you.
Old 07-28-2019, 11:20 PM
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Kiln_Red
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Originally Posted by worf928
The correct way to remove the mirrors is to de-pin the connectors.
Bingo.

Just about every 928 I see has already had the mirror wires hacked. Sometimes it's just one side suggesting, as you said, it's accident-related hackery.. Is that a word??
Old 07-28-2019, 11:22 PM
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Originally Posted by Shark2626
Amazingly each time they knew exactly what to do and the repairs have been super impressive...
Uh huh... So you took apart their work and checked?

You never know how good a repair is until you take it apart.
Old 07-28-2019, 11:28 PM
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Originally Posted by Kiln_Red
Sometimes it's just one side suggesting, as you said, it's accident-related hackery.. Is that a word??
We can make a word maybe. Sloppy, lazy, uber-cheap-as-possible, thoughtless accident repair. Or an acronym: SLUTAR.
Old 07-28-2019, 11:33 PM
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Old 07-29-2019, 12:12 AM
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Originally Posted by worf928
We can make a word maybe. Sloppy, lazy, uber-cheap-as-possible, thoughtless accident repair. Or an acronym: SLUTAR.
Let's try it in context.. "Hey, Dave.. Will you look at this? I think my mirror wiring may have been SLUTAR'd."

Perfect.
Old 07-29-2019, 12:27 AM
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Originally Posted by Kiln_Red
Let's try it in context.. "Hey, Dave.. Will you look at this? I think my mirror wiring may have been SLUTAR'd."

Perfect.
Yeah. It's close. A sniglet would be better. But I think that works.

Late in the fall I have to remove the rear cover from CarChick's 981 so that I can see exactly how good the Porsche-certified body shop was that did the non-insurance work on it. (And it's an excuse to finally install her Sport Exhaust.)

I don't know how it works in your neck of the woods but up here the insurance companies reimburse disassembly of a Porsche at ~$25-40-ish per hour. Hard to retain folks that won't SLUTAR at that rate. I'm 100% convinced that body shops up here in Yankee land that survive on 75-100% insurance work are only capable of remaining in business through trickery and the hope that the owner has no eyes and can't use a screwdriver.


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