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S80 '06-'16 / V70 & XC70 '07-'16 General Forum for the P3-platform S80 and 70-series models |
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Mystery rattle / can a shock rattle?Views : 802 Replies : 14Users Viewing This Thread : |
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May 18th, 2022, 18:13 | #1 |
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Mystery rattle / can a shock rattle?
Just had car in for MOT and asked them to check all the ball joints carefully as I’ve a couple to knocks underneath (guess that’s part of the test in any case?).
They reported all ball joints good, but a rear heat shield had broken loose, which they’ve fixed. He thinks it could be a front shock as they can knock, but will need to dismantle the strut to be sure. My question, is this likely when the damping is fine and there’s no leaks? It’s conventional suspension on an r-design, not sure if it’s different to the other variants. I’ve stripped P2 struts before, guessing the P3 is a similar setup (not looked) Car passed with no advisories (or whatever they’re called these days). It’s a 2010 V70 with 175,000 miles. Last edited by reggit; May 18th, 2022 at 19:36. |
May 18th, 2022, 18:15 | #2 |
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Isn't it more likely to be something inside that cat that's rattling rather than something outside?
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May 18th, 2022, 18:29 | #3 |
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It sounds underneath at the front. Thought it was a ball joint as that’s what it sounds like, but evidently not.
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May 18th, 2022, 18:41 | #4 |
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Can you describe what you hear, when (driving? stand-still? certain speeds etc.)
Can you hear it when in the car and when out of the car? Windows open/closed? Constant rattle or intemittent? |
May 18th, 2022, 19:33 | #5 |
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Fairly deep clonking noise on undulating (and worse) roads, sounds to be at the front and at any speed. It’s continuous in respect that is does it on every journey, but not all the time as it’s quiet on smooth roads.
Not tried windows open/closed yet. Can’t replicate it by bouncing the car. |
May 20th, 2022, 18:53 | #6 |
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Just replaced both front struts on my 2010 100k mile D5 for a similar sounding fault. Did both and the top mounts although the noise was only nearside and it was very difficult to replicate whilst it was standing. Top mounts seemed OK so assume it was an internal strut problem. All OK and quiet now.
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May 18th, 2022, 20:29 | #7 |
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check sway bar links if faulty cheap easy fix
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May 19th, 2022, 06:44 | #8 |
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Strut mounts?
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May 19th, 2022, 07:10 | #9 |
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Started wondering about strut mounts myself last night, had them fail on my old P2. It’s not as severe a knock though.
Will probably overhaul the struts over summer if I can’t get to the bottom of it without, and the garage couldn’t find the source. Doesn’t sound like ARB drop links. |
May 19th, 2022, 07:36 | #10 |
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Loose brake pad. Happened to me .
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