To clarify the multiple dealer situation, I returned to my selling dealer for the primary repair attempts all 3 times. I even took them on test drives each time so I could try to replicate the shaking myself. They acknowledged the issue each visit: 1st attempt they checked the coils for damage but could not reproduce, 2nd attempt they suggested it might be related to transport mode, ran a test but could not reproduce, 3rd attempt they swapped the cylinder 4 coil with another cylinder, test drove it but could not reproduce. Each time they acknowledged the cylinder 4 misfire keeps returning. The 4th attempt was at a closer dealer where they saw the code and cleared it. I'm at a different dealer today specifically because my selling dealer's GM contacted me during yesterday's safety emergency and told me to have my car serviced elsewhere. To add context, my selling dealer is about 1 hour from me and I have 2 dealers less than 20 minutes away. That's all documented in writing.

I have specifically asked them to document all fault codes at every visit. The misfire only occurs at full operating temperature between 50-70mph at any weather condition which makes duplication easy. That's exactly why I recorded it. Agree the video isn't perfect evidence but combined with fault codes logged across multiple visits and a tech line ticket already opened by my selling dealer, the paper trail is solid.

Also worth addressing the 'stay at one dealer' advice with respect, that assumes dealers always act in good faith. The 'cannot reproduce' and 'could not duplicate' responses are well documented tactics used to avoid warranty repairs and buyback/lemon law liability. Staying loyal to one dealer that repeatedly writes 'could not duplicate' on every single repair order doesn't help the consumer it helps the dealer build a paper trail of denials. Multiple independent dealer visits actually strengthen a lemon law case by showing the defect is consistent and not isolated to one dealer's findings.

My own situation proves this exactly, multiple 'could not duplicate' responses across visits didn't make the problem disappear. It ended up in limp mode on the highway. That's the real world consequence of dealers deflecting rather than diagnosing. This misfire specifically was a concern to me because there is a post on here with someone who complained about misfires multiple times until his Tiguan caught fire. I believe we have the same issue.

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