Thunk / clunk noise from rear on start / stop

Hi sounds to me like a suspension bush has worn and has play in it..

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My brakes (particularly under a "hold" condition) have sometimes needed a moment to release, leading to a small clunk. That's my only experience with what you're describing after ~16k miles.

 

I have no thunck or clunck sound in my 2012 458 Ray, sounds not O.K. to me ... remember, cardealers are all croocks

 

Mine has that noise as well, but more like a clicking sound, FOSV says totally normal but some cars are louder than others.

 

Mine has the same sound, although the conditions are a bit different. First, don't mistake it for the door auto-lock feature. Mine will make the sound every couple of minutes if I let the car idle with the EPB engaged. I've followed the sound to the right rear quarter area, exactly where the EPB motor resides. My theory is that the EPB system will periodically "re-tension" the brake cables by cycling the EPB motor to make sure the car can't roll. The EPB motor has a clutch which prevents over-tensioning and I believe that's what's making the "thud" sound when cycled. Someday I'll need to pull the inner fender on that corner to validate my theory but as mentioned I think it's perfectly normal.

 

Good instincts Ray! Usually, if present, the sound happens when the DCT downshifts from
2nd to 1st at very low speeds, never happened to me but I know for reliable sources that it
is totally normal.

best

 

I hear all kind of new noises that I haven't heard in other cars, but it's difficult to say what's supposed to be there v. what isn't.

991 GT3 was the first DCT/PDK transmission I ever owned, and it took me quite some time to adapt to noises from that car. Transmission sound even changed when I was in neutral v. in-gear v. in-gear but idling.

Any chance you can get your car side by side with another 458 car + owner to have a listen?

 

+1

 

hi there

guys iv noticed that distant noise on my 458 italia aswell just before i come to a stop at the rear noise is delayed as that guy is saying.

iv done a test to see if the noise is from gearbox after my test i really dont think that noise from gearbox because what i did left car in manual mode coming to a stop slowly in first gear and keeping it in first gear when car stopped i can still hear that distant delayed knock noise like a ball rolling in rear. i would love to know what that noise is if anyone did find out?

thanks oz

 

hi ray

thank you for your feedback I think you are correct because when i come to a stop and dont lift my foot off the brake it doesn't do the noise.

when i have come to a stop and lift my foot off of the brake thats when it dose the noise.

thanks oz

 

How about a “clunk” sound when turning the ignition off. Doesn’t do it all the time but most of the time. 2013 Italia.


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I have it also in my 2010 458. When I come to a complete stop I hear it seconds later while stopped. The car is not moving at all. It is almost like something is resetting in the transmission.

 

That’s a very bold state and fairly ignorant. Why would a service department turn away money to fix a car?

 

hi buddy

Iv done a test on my 458 its definitely the brakes avh function it holds the brakes if your on a slight hill.

try this come to a stop and do not back off the brake pedal it will not make the noise then.

 

copy thanks

 

My 2011 458 made this noise.

My 2018 488 makes this noise.

Not surprising because these two models share the same chassis platform.

These possibilities have been suggested - the hydrodynamic shocks and / or the e-diff.

 

I have the same issues.only different.I Start my car in the Garage and Wait For 5 min sometimes a Loud Noise Clunk came from near left Hand rear Wheel .
If you Open the Engine bay ,you can hear nothing.Close the Engine bay softly and you can hear a dump clunk.pls Check this!