noise coming from the rear of my car when I go over small bumps

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My Name: C3RIS

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Posts: 43
Joined: Thu Apr 11, 2019 8:41 pm
Model: C3 2006-2009, Facelift model
Year: 2007 (07)
Engine Size: 1.1
Fuel Type: Petrol
Mileage: 95000
Trim Level: Desire
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
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Hi all,

Not had much motoring due to Covid, but I noticed around 2 months there was a noise coming from the rear of my car when I go over small bumps. The best way to describe the noise is, it sounds like when the boot is left on the latch, or the rear seats aren't quite secured, it's almost a rattle, however its neither of these!

I've taken out the boot lid plastic housing, wasnt that.

Removed the parcel shelf, not that.

Checked the spare wheel, not that either.

Any other ideas, it sounds like it's in the boot?

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All the best.
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My Name: Ozvtr

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Posts: 941
Joined: Wed Jul 10, 2019 3:31 am
Model: C3 2002-2005, Original shape model
Year: 2003 (53)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 80000
Trim Level: Other
Gearbox: Automatic PRND
DPF: No
LHD or RHD: RHD
Engine name: TU3 (75 PS)
Location: Brisbane, Australia.
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It might be the whole rear hatch rattling.
catch 001.jpg
Try removing the plastic cover on the door catch. In the two centralizers are rubber bumpers. Try rotating them 90 degrees. I have found the bumpers get compressed and no longer absorb the shock of the door moving. I dont think this a permanent fix but it might tell you if that's the problem.
My Name: C3RIS

Experienced Member
Posts: 43
Joined: Thu Apr 11, 2019 8:41 pm
Model: C3 2006-2009, Facelift model
Year: 2007 (07)
Engine Size: 1.1
Fuel Type: Petrol
Mileage: 95000
Trim Level: Desire
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Has thanked: 1 time
Been thanked: 4 times

Post

Thanks, tried the above, that didn't seem to work, I seem to remember it started after I'd had the rear seats down?
But all looks good now.
Not sure if it's related, but read it could be rear shock absorbers? Is this possible?
Thanks
User avatar
My Name: Ozvtr

Moderator
Posts: 941
Joined: Wed Jul 10, 2019 3:31 am
Model: C3 2002-2005, Original shape model
Year: 2003 (53)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 80000
Trim Level: Other
Gearbox: Automatic PRND
DPF: No
LHD or RHD: RHD
Engine name: TU3 (75 PS)
Location: Brisbane, Australia.
Has thanked: 36 times
Been thanked: 251 times

Post

It's possible. But the sound tends to come from one side or the other. It's highly unlikely both have gone at the same time.
Jack the car up and remove the road wheels.
Look at the shocks, see if there is any fluid seeping around the outside of the lower shock assembly. If there is an oily film then the shock has gone.
Look at the spring and see that it's seated correctly top and bottom. Check for loose bolts/things not looking right.
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