Don't worry be happy! What happens is the coolant bottle when it leaks, it pushes the coolant up the wiring harness. So the only fix is do a wiring harness overlay. The repair is totally acceptable in the auto industry. We commonly do it for other issues too.
I dropped my '03 GLI off on Memorial Day for a 15k service and to have them
> fix my recently inop A/C. Turns out the coolant recovery ball had a
> hairline leak whick dribbled the coolant into my engine wiring harness. It
> took exactly one full month for them to obtain the part, and then it turned
> out that they needed another similarly hard to obtain part to complete the
> job. I filed a Massachusetts Lemon Law complaint with VWOA to cover myself
> in the case that it was going to continue to be a problem, but now the car
> has been repaired by a VWOA tech who flew in with the part. Does this sound
> right? I'm happy to get the car back, but I am really wary of having a
> leased vehicle with any deviation from the factory wiring...especially since
> it took them almost six weeks to fix it. I am very worried that this car
> may have more problems related to this repair. Is replacing two engine
> wiring harnesses a difficult job? Is it something that you would be worried
> about insomuchas future problems?
>
> Have not yet picked up the car, will get it on Monday. Any advice on
> anything to look out for that would indicate other problems related to this
> wiring harness replacement?
>
> the customer service during this ordeal was decent. I was given a loaner
> car for the entire time out of service, no questions asked.
>
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