I just came back from a weeks trip and when I went to start my car, the check engine light came on. I scanned it and it was P0444. After some research, I learned it was related to the evap purge valve. I pop open the hood and I discover these broken wires. This is the purge valve wires correct? And to fix them, how should I go about it? Would I need to replace the whole harness? Any help is appreciated. (Sorry, not sure how to make the picture smaller)

 

How did it happen that's strange ? I would replace the whole harness just in case or for a piece of mind

 

I was very surprised as well. To replace the whole harness, where does it lead to? Would you happen to know the part number or instructions?

 

MICE ? - wd40 everywhere they run off and eat other cars.....

just repair it - BMW fit trackers and MANDATE you must NEVER solder wires only crimp laying end to end with an overlap - never twist or do side by side

Germans love playing with repairs - its why they make all the parts available

 

I was about to try my first wiring repair. I got some butt connectors and practiced on old wires. But crimping is the way to go? And then put a heat shrink tube around it? Why is one better than another?

 

seems soldering alters the resistance and can affect diagnostics (in their world) if you do a tracker with solder it invalidates the BMW warranty !!!! - BM method is end on, overlap wire, don't twist and crimp (heat shrink is great)

 

Eh, in a good solder joint the wires are already twisted together and touching before solder. With a butt connector they are not touching. If anything I'd expect a butt connector to have increased resistance. But then not everyone can solder properly. I typically like solder + heat shrink. Some of the OEM style butt connectors with the integrated heat shrink and glue seem good though.

 

Is this something I need to get fixed asap? Will it damage something if I drive the vehicle with this?

 

Since the computer knows that valve is not functioning I don't think the car will run any differently at all (malfunctioning evaporative emissions systems can lead to mixture control issues but like I said the computer already knows it's not connected). And as far as tank pressure goes I believe there is still a charcoal canister vent valve so if the tank pressure were to build up it could just vent through the canister, assuming the backup strategy is smart enough to do that. So my assessment is this is not an emergency.