Bosch 5.7 DSC ABS ECU Module Internal View with Video...

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Saint.V8

Dyed-in-the-wool 100% RR Junkie
Full Member
Following on from the replacement of my ABS ECU Module with a new one, and the subsequent recoding carried out at a very friendly local indy, I took the opportunity to open up my old unit to see if my research of internal wiring failure had any weight to it!

Using a scalpel and patience, I carefully opened the unit, took about 45 miuntes of constant scoring and cutting to get through the plastic cover, and to try and not deposit to much debris into the internals (only a small amount made it inside!)

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As mentioned previously, there are very fine Gold wires and larger Silver wires. I wasn't quite prepared for just how tiny these wires are, took me by surprise, they are minute!

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Using the tip of the scalpel, I gently poked each Silver wire in turn and one turned out to be very loose compared to the others, I think I may have found my problem. As the unit warms up and suffers vibration, the movement and heat expansion pulls this tiny wire off its contacts and causes my ABS system to fault!



So it looks like this wire is the culprit

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Follows some other shots of the internals

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There have been reports of being able to resolder the wires in place by first removing the 'goo' that covers the connections, but looking at it, I don't have that kind of skill, I cannot express just how tiny these wires are.....best of luck to any one who gives it a go!!
 
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Be interesting to solder them I have a small temperature controlled soldering iron and an illuminated. Magnifying led lamp
 
Fight amongst yourselves then declare a winner, winner gets the item for repair - but has to do a detailed How To with pictures and Vids (if applicable).....

Would you then have the stones to advertise as S/H repaired and make a bit of bunce and donate 90% of the price to LZ and keep the 10% asa reward??

Looking at vids on the Tube, the original unit was Ultrasonic bonded using a robotic machine....

Rebuilding process of a Bosch ABS ECU - YouTube

I cannot stress just how tiny these wires are...in my vid I am tapping them lightly with the tip of a Surgical Scalpel.....they are only 4-5mm long, and covered in a Silicon Goo.....
 
This is interesting.

Come on...who is up for the challenge... can't wait to know if its dooooable.
St...Great idea.
:5bhurray:
 
One of the guys who worked at our company would've had a field day if he was still working with us. We used to call it Challenge Craig because you could bring in any broken electronic device and he'd fix it. Guy has incredible talent. Still got his tools in the office, but I doubt I'd even know how to turn half of them on.
 
I have a bad feeling I am need of one of these! I can find them for my 3.0 TD6 at a cost of £1500!! But The 4.4 V8 ones are only £400 on eBay. Am I right in thinking that any Bosch 5.7 ABS ECU Module go straight in?
 
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