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Help needed sorting this electrical mess

Mike A

By Mike A,
in BMW 2002 and other '02

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Mike A Mentor

Mike A

Posted
Posted

The lunk heads having previously owned this 73 Tii should be incarcerated. This is just the latest of a slew of really incompetent work...much of it coming out of Select Classics is no surprise.  Can those of you with underdash electrical experience weigh in on what is being accomplished in these photos or what may be the reason for this fubar? It appears that the mess of yellow wire is  intended to bypass the Molex-type connector...???  Would anyone be able to photo what the original harness looks like on either side of the connector?

cob job 1.JPG

cob job 2.JPG

cob job 3.jpg

  • Sad 1

73 Tii stock build, Porsche Macan   , E46 330i Florida driver, 

….and like most of us, way too many (maybe 30 at last count) I wish I hadn't sold ?

 

 

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Healey3000 Veteran

Healey3000

Posted
Posted

Hard to tell until you take off the black tape but it looks like the Molex connector is from the wiper switch.  Intermittent wipers, perhaps?  There is an easier way to do that by swapping out the relay from a later car but I don't know if a '73 would support that.

 

I feel for you - this is as ugly and ham-handed as it gets.  When I got my car, there was a similar mess.  I ended up ripping out all of the add-ins, which allowed me to make sense of the wiring.  Fortunately, original wire is easy to identify so anything that did not look like it, had to go.

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stone02 Experienced

stone02

Posted
Posted

WOW,

  well that looks to be the wiring for the right side

column switch. it is possible that the previous "parts changer"

used a part from a CS or Bavaria. also it is possible that

the car has had an intermittent wiring done to the wiper

system. not real familiar with the conversion. so that said,

the end not wrapped is supposed to mount in the hole in the

rusty column bracket and a female plug containing male

prong would push into it. it looks bad but if it all works

properly and the connections are soldered, i would let it

go until you have concerns. find good used column

replacement parts and then do a full change over to

eliminate that when or if it fails. i have the body side wiring

if you need that too.

stone

stone racing co

phila pa 19123

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Mike Self Grand Master

Mike Self

Posted
Posted

To see if the previous ham-fist owner added jury rigged intermittent wipers, the quick way to check is to see if the wiper relay has seven terminals vs six.  If you need the wiring diagram for adding intermittent wipers to a '72 or '73 with the turn signal stalk PM me as I re-created the original factory wiring on my '73 around 1987 and it's been working fine ever since...

 

Remember that the right side steering column stalk on a '73 governs turn signals, wiper on/off, wash/wipe, and on-street parking lights when the ignition is off...  that's a lotta wires.

 

mike

 

'69 Nevada sunroof-Wolfgang-bought new
'73 Sahara sunroof-Ludwig-since '78
'91 Brillantrot 318is sunroof-Georg Friederich 
Fiat Topolini (Benito & Luigi), Renault 4CVs (Anatole, Lucky Pierre, Brigette) & Kermit, the Bugeye Sprite

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Simeon Grand Master

Simeon

Posted
Posted

If you are not planning on stripping that crap out, take a look under the chewed up insulation tape where spliced to the factory wiring. I suspect you will find wires just twisted together and taped. 

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rtheriaque wrote:

Carbs: They're necessary and barely controlled fuel leaks that sometimes match the air passing through them.

My build blog:http://www.bmw2002faq.com/blog/163-simeons-blog/

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Mike A Mentor

Mike A

Posted
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Posted

all of the above indeed. Yes it is the right side stalk on the column. I have the Prospero's Garage schematic and will eventually get it right ( he says optimistically) ...it just takes so freaking long for an old guy laid out under the dash. Like Healey, I'll be ripping it all apart.... I just hope the idiot left enough of the leads to make a proper repair. I was hoping that somebody might have a photo of what that Molex looks like originally . Thanks guys

73 Tii stock build, Porsche Macan   , E46 330i Florida driver, 

….and like most of us, way too many (maybe 30 at last count) I wish I hadn't sold ?

 

 

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  • 2 months later...
Mike A Mentor

Mike A

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Posted (edited)

So, mystery solved thanks to some help from people in the know at Vintage Sports Restoration. The car is a 73 tii . The switches that came with the car were the later variety and had to be rewired to connect to the original harness. A new set of early switches on the list. 

Edited by Mike A

73 Tii stock build, Porsche Macan   , E46 330i Florida driver, 

….and like most of us, way too many (maybe 30 at last count) I wish I hadn't sold ?

 

 

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Mike A Mentor

Mike A

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Posted (edited)
7 hours ago, H E L P said:

What is all that rust behind the steering column and what looks like the interior side of the firewall? Never seen rust there before. Must be from leaky windshield??? But it looks bad and I would address that before it gets worse. 

I sure will

Edited by Mike A

73 Tii stock build, Porsche Macan   , E46 330i Florida driver, 

….and like most of us, way too many (maybe 30 at last count) I wish I hadn't sold ?

 

 

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tech71 Grand Master

tech71

Posted
Posted
22 hours ago, H E L P said:

What is all that rust behind the steering column and what looks like the interior side of the firewall? Never seen rust there before. Must be from leaky windshield??? But it looks bad and I would address that before it gets worse. 

Or a leaking heater core or heater box seal.

76 2002 Survivor

71 2002 Franzi

85 318i  Doris

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Swiss 2002Tii Mentor

Swiss 2002Tii

Posted
Posted (edited)

I am splitting this into several replies to drop the photo size/content.

Wow.  I hope these help.

I had considered going to the old style stalks with the turn signal on the right, but I couldn't work out all the connector changes.

Attached is a file I created with some of the connectors identified, but not the turn stalks.

IMG_0062.JPG.4cbe5fcd780e31b160fcc09c020186d5.JPG1072160778_InstrumentCluster(22).thumb.JPG.269cc52648a12e81bfd4dd222a418632.JPG1808747611_InstrumentCluster(33).thumb.JPG.97095aa66b1a2d4028d0ef17508cc5c4.JPG67608690_TurnSignalStalk(1).thumb.JPG.6453d1fd42fc5fec78f3c58665e2509c.JPG1830211019_TurnSignalStalk(2).thumb.JPG.7d49a87db4828bbd75cafa81707ea9cb.JPG

 

 

 

Wiring_Connectors_BMW 2002Tii.xlsx

Edited by Swiss 2002Tii
reduce size

1972 BMW Inka 2002Tii  ?

1974 BMW Turkis 3.0 CSi ?

1972 MBZ Weiss 280SE 4.5 

2006 BMW Cobalt 530i (38,700 m original)

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