Sorry to hear you are having issues with both the dealer and the vehicle.
Have you checked out New Jersey's Lemon Law?
From Section 17...
New Jersey Divison of Consumer Affairs wrote:17.Solving Problems with a New Vehicle - A ReviewIf your vehicle is defective: ■Give your dealer an opportunity to repair your vehicle.■Keep all repair receipts and a complete record of all contacts with the manufacturer or dealer.If substantial defects continue after two repair attempts or 20 cumulative calendar days: ■Give the manufacturer written notice of its last chance to repair the defect. Be sure to send the letter by certified mail, return receipt requested.If the substantial defect is not corrected within 10 calendar days after the manufacturer receives the written notice: ■Demand a refund.If the manufacturer does not agree that you are entitled to a refund under the Lemon Law: ■File for dispute resolution through the Division of Consumer Affairs; or■File for dispute resolution through the manufacturer's system; or■File a civil action in court.If you are not satisfied with the outcome of the manufacturer's system: ■You can still file for a Lemon Law hearing through the Division or file a civil action in court.If you are not satisfied with the decision of the Division or the court: ■You have 45 days to file for an appeal in the Appellate Division of the Superior Court ( 609-292-4822 609-292-4822).
I would say from now on, any time...any time your vehicle goes into the dealer for service, make sure you get a receipt of work performed that is both acknowleded by the dealer and you.
10 times is an awefull lot of times into the dealer...IIRC, it is usually 3x for the same problem over a given period of time.
Since you are likely to lease your next vehcile, what ever it may be, you might want to want to have the dealer throw in a FREE loaner (rental) car for warranty repairs. Dealers are not liable to provide loaners and will not have to unless thye feel they will lose big - wooo the customer as much as possible -- or are held to an agreement.
Electrical gremlins are the hardest to trace and I can see why the dealer tried to skate past any documentation.
Hope things can get resolved. Maybe there is a VW Passat V6 4-Motion in your future or Volvo XC90 or V70...