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Another mysterious rattle.......


greyfox47

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I've owned my '17 MKX Reserve since Feb 21st. During that time, I've issues with headlight alignment, two early cabin rattles, one resolved, one not, and now a new vibration rattle has started. Seems to be coming from the back seat area and is constant. My dealer is 35 miles away, which is too far for making this a bi-weekly ride. And because their streets are in excellent condition there, sometimes reproducing the rattle is more than challenging. All this amounts to a situation where I increasingly find myself listening more than enjoying when I drive the car. I really like the styling and comfort of this car but a chronic case of buyer's remorse is starting to settle in. I told the service counter rep during my last visit that the year old loaner they gave me for the day is a lot quieter than mine and has almost twice as many miles. I then got a short remark that hinted that sometimes the source of rattles prove to be almost impossible to locate. I'm thinking to myself "you gotta be shitting me!" I just spent $50K+ for a rattle box? 

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  • 2 weeks later...

Check the seatbelt tab between the door and seatback in the back seat.  Very common.

Would this be a rattle that the latch makes with the adjacent plastic trim? Riding in the backseat while the wife drives didn't show that to be an issue. I buckled the two backseat belts and will see if that does anything. I gotta say that if I had any idea of the little annoying squeaks and rattles I'm going through, I absolutely would never have purchased this car. It's literally gotten to the point where I don't want get in it and drive. Over the top disappointed.

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Check the tightness of the spare tire, the placement of the jack, tools and handle; and any other items in the well.

 

I had a similar rattle and traced it to my towing ball and ball mount assembly. I had wrapped it in a heavy rag, but it had shifted position and started rattling anyway.

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I've owned my '17 MKX Reserve since Feb 21st. During that time, I've issues with headlight alignment, two early cabin rattles, one resolved, one not, and now a new vibration rattle has started. Seems to be coming from the back seat area and is constant. My dealer is 35 miles away, which is too far for making this a bi-weekly ride. And because their streets are in excellent condition there, sometimes reproducing the rattle is more than challenging. All this amounts to a situation where I increasingly find myself listening more than enjoying when I drive the car. I really like the styling and comfort of this car but a chronic case of buyer's remorse is starting to settle in. I told the service counter rep during my last visit that the year old loaner they gave me for the day is a lot quieter than mine and has almost twice as many miles. I then got a short remark that hinted that sometimes the source of rattles prove to be almost impossible to locate. I'm thinking to myself "you gotta be shitting me!" I just spent $50K+ for a rattle box? 

Have friend sit in the rear and while driving ask him/her to try and approximate the location of the noise.

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Check the seatbelt tab between the door and seatback in the back seat.  Very common.

 

I had this one myself.  Once I ID'd the problem I now realize that after anyone is in the back seat I need to simply reposition the buckle sideways from the rear door plastic.  Its certainly a PITA but thats the culprit!

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Grayfox47, did you ever find your rattle?

I'm happy to report with a resounding YES! During the 4th trip to the dealer, the tech heard the rattle. The previous 3 were a waste of petro. They held the car for two days looking for the mysterious noise, which occurred at about 65 mph regardless of surface. The only variance was how loud. I guess I was unlucky the 3 trips where nothing was heard. Anyway, it was a loose shield under the car on the passenger side. The tech added some insulation (?) and tightened the shield and I was immediately on the hook for a dozen donuts the next time I go in for service. I was fortunate to get the same tech, Josh Papp, on every occasion so he knew the car well. Needless to say, I'm about 500% happier with the purchase now that it's as quiet as I had hoped when I wrote the check. And... unless he goes elsewhere, I definitely have a preferred tech at the dealership. 

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I'm happy to report with a resounding YES! During the 4th trip to the dealer, the tech heard the rattle. The previous 3 were a waste of petro. They held the car for two days looking for the mysterious noise, which occurred at about 65 mph regardless of surface. The only variance was how loud. I guess I was unlucky the 3 trips where nothing was heard. Anyway, it was a loose shield under the car on the passenger side. The tech added some insulation (?) and tightened the shield and I was immediately on the hook for a dozen donuts the next time I go in for service. I was fortunate to get the same tech, Josh Papp, on every occasion so he knew the car well. Needless to say, I'm about 500% happier with the purchase now that it's as quiet as I had hoped when I wrote the check. And... unless he goes elsewhere, I definitely have a preferred tech at the dealership. 

 

Glad to learn you got it resolved, greyfox47.  I had the same issue with my vehicle.  Just posted about it in another thread...

 

Timmer

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