I don't really understand why you need an expert witness. Most lemon laws simply state that if you have returned a certain number of times with a problem that the dealer is unable to repair then you can file a claim, just keep your documentation showing your return visits.

I suppose it would help to have an expert be on your side but frankly you have documented the trips to the service departments I assume so just file the claim and see how they respond...I bet you will hear from someone high up after they receive notice of the claim.

Also, if they have replaced the CPS and it still dies then maybe that's not the problem. If they haven't replaced it then you can save yourself a big hassle and just have it done, even if you have to pay you can then sue them in small claims court after it is fixed for the warranty claim. I don't think the part or the labor is all that costly...maybe a couple hundred dollars total? I bet you will waste hours and hours pursuing a lemon law claim - how much is your time worth?

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz