Bimmerfest - BMW Forums - View Single Post - E39 Electrical Problems Traced to Trunk Lid Harness Wire Chafing (DIY Diagnostic)
View Single Post
Old 07-26-2011, 10:32 AM
bluebee's Avatar
bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
Join Date: Mar 2008
Posts: 25,236
Mein Auto: 02 BMW 525i M54 auto 130K
Originally Posted by bmwbmc View Post
by the way, it's a black one!
It probably has BLUE primer!

Thanks for the pictures. Every BEFORE picture helps us identify the true cause; and every AFTER picture gives us a better idea of the best solution!

Originally Posted by abqhudson View Post
I used Radio Shack telephone butt connectors to repair the frayed wired - clear yellow insulation.
Every picture is useful (as stated above)!

Thank you for pitching in.

I think, someday, if we all work together, we'll come up with the true cause (whether it be stretching or bending or, as recently suggested, a manufacturing defect) ... and ... more importantly ... the best solution (whether that be replacing the entire harness or various & sundry ways to patch it back up securely).

Originally Posted by 540 M-Sport View Post
I think a big topic of discussion is what is a reasonable way to repair this

I know that the way "I" repaired it will not last more than a year (it's already crushed by the trunk, due to the massive addition of wires & tape & solder & heat-shrink tubing I mistakenly employed!

We need:
- A better understanding of the true cause of this common problem
and ...
- A better splicing or replacement strategy (better than mine, for sure!)

All this can be done with observation by someone more clever than I.
Attached Thumbnails
Click image for larger version

Name:	trunk_wiring_bmw_e39_frayed_cracked.jpg
Views:	28308
Size:	49.9 KB
ID:	286651  

Last edited by bluebee; 07-26-2011 at 10:42 AM.
Reply With Quote