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post #1 of 14 (permalink) Old 06-28-2018, 03:53 PM Thread Starter
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Vibration at speed

I have always felt a vibration in the seat at around 75-80mph. The dealer re-balanced the tires (road force balance) but the issue remains. It is slight but noticeable. It hasn't gotten any worse over time.

Is anyone else having this issue? With the stiff suspension, is it just the nature of the car? I had a loaner CX-5 last year, and it had the same vibration issue.

Next dealer visit, I will have the SA do a ride along to see if he notices it.

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post #2 of 14 (permalink) Old 06-29-2018, 06:56 AM
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How often do you drive your cars? Flat spots on tires could cause this. What year 6 is this? What year was the cx5?

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post #3 of 14 (permalink) Old 06-29-2018, 07:38 AM
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To add to ocramida's comment, two things:

1) Double check that the where the tires meet the rotor is nice and clean, with no rust. If the rim isn't sitting perfectly flush on the rotor, you're gonna vibrate.

2) Have you replaced your brakes at any point? I ask because if you don't wire-brush the old rust off where the rotor sits, then you'll have a phantom vibration no one will ever find.
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post #4 of 14 (permalink) Old 06-29-2018, 09:53 AM
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Being a 2017 I'd assume the brakes aren't an issue.

Usually you'd be able to feel it in the steering wheel but in your "seat" and only at the higher speed it would be tire/rim related. Most likely coming from the rear. Change the location of the tires and see if it changes the vibration.
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post #5 of 14 (permalink) Old 06-29-2018, 12:33 PM
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Quote:
Originally Posted by idrive View Post
Being a 2017 I'd assume the brakes aren't an issue.

Usually you'd be able to feel it in the steering wheel but in your "seat" and only at the higher speed it would be tire/rim related. Most likely coming from the rear. Change the location of the tires and see if it changes the vibration.
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post #6 of 14 (permalink) Old 07-02-2018, 10:44 AM Thread Starter
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Hi all, thanks for the feedback. The car was bought new in March 2017. The tires have been rotated twice now at the dealer, and the vibration remains. During each rotation, I don't know which tires went where.

The CX-5 I drove was a 2016, I think. It definitely wasn't a 2017.

The car has been my daily driver, so I don't think it's flat spotting.

The car only just turned 18,000 miles, and the brakes are original.

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post #7 of 14 (permalink) Old 07-02-2018, 11:18 AM
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Quote:
Originally Posted by LeMansteve View Post
Hi all, thanks for the feedback. The car was bought new in March 2017. The tires have been rotated twice now at the dealer, and the vibration remains. During each rotation, I don't know which tires went where.

The CX-5 I drove was a 2016, I think. It definitely wasn't a 2017.

The car has been my daily driver, so I don't think it's flat spotting.

The car only just turned 18,000 miles, and the brakes are original.
as idrive mentioned, Are you feeling the vibration through steerimg or seat, or both?

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post #8 of 14 (permalink) Old 07-02-2018, 03:01 PM Thread Starter
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I'm definitely not feeling any vibrations through the steering wheel. It's all through the seat.

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post #9 of 14 (permalink) Old 07-02-2018, 04:33 PM
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Quote:
Originally Posted by LeMansteve View Post
I'm definitely not feeling any vibrations through the steering wheel. It's all through the seat.
Normally that would most likely be a driveline issue. With the front wheel drive and not feeling it in the steering wheel there's not much left it can be.

My next thought would be the exhaust system.

Check the RPM's when you feel the vibration and then go to manual and hold different gears at the same RPM's and see if the vibration is there.

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post #10 of 14 (permalink) Old 07-03-2018, 01:41 AM
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That's a great diagnostic idea.

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