[danood]

Long story short, bought an injector/coil wiring harness for my n52 to replace one that had been damaged on ebay, the one I replaced was slightly different by 1 connector seemingly to the AC. If anyone with access to engine wiring harness information could help it'd be appreciated. Id just send it back but it was quite a bit and the guy surprise ripped me on shipping before accepting an offer. idk. anyway. If anyone with some time to kill could help save me hours id appreciate it.

part numbers are

12517572395

12517566555

thanks

[gbalthrop]

Originally Posted by danood

... bought an injector/coil wiring harness for my n52 to replace one that had been damaged on ebay, the one I replaced was slightly different by 1 connector seemingly to the AC.
part numbers are: 12517572395 & 12517566555...

ISTA shows wiring diagrams by System, such as Injectors, Ignition, IHKA functions, etc. It does NOT show wiring harnesses. It shows Connector Locations & Sockets (Connector View) for each wiring connector in that system. RealOEM.com shows approximate diagram of entire harness (see link below), but NOT connector or wiring detail.

To solve your issue we would need DETAILS:
1) Last-7 Characters of your VIN (Many wiring changes effective 3/1/2007, in middle of 2007 Model Run);
2) Fault Codes, Warning Lights & Performance Issues you have PRIOR to any harness disconnection or repair;
3) Nature of damage to original harness: Engine Fire; Rodents; Issue History;
4) Photos of such damage if possible;
5) Please indicate which part# is original harness & which is replacement;
6) Please indicate HOW part# was obtained: by label on harness; claim by seller, etc.

Unless there has been massive damage to harness, it is generally easier & quicker to repair it with wire splicing, AFTER TESTING with Multimeter. ISTA provides wiring details (color & cross-section wire size) to identify each wire. Multimeter can be used to confirm continuity, short, etc.

If you have already removed the original harness, did you label the function of each connector (e.g. A/C Compressor, Injector #1, etc.)?

In case you have NOT already seen this, here is an example RealOEM.com diagram of part# 12517566555:
https://www.realoem.com/bmw/enUS/sho...41#12517566555

If there is just ONE connector that is unaccounted for, please attach a photo showing FACE of that connector (Pins/Sockets), indicate its approximate location, and the Number of wires (if a socket), with color(s) of each. We can then provide ISTA wiring details for that system/ Connector.
George