C36 AMG, C43 AMG (W202) 1995 - 2000

Spongy Noise When Braking

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Old Dec 18, 2015 | 05:32 PM
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From: Bolingbrook Illinois
1999 C43 Amg
Spongy Noise When Braking

Hope someone will know what is causing this issue.
Brake pads are new but don't know what kind they put in.
Rotors look pretty good and car stop great.

Problem is when I reverse and step on the brake it makes a spongy noise.
The colder the weather the louder it gets. This didn't happen in summer when I bought the car. Here's a clip of how it sounds, please skip 20 seconds as it's just me opening the garage door. Thanks in advance.

https://db.tt/Si7BqM6c
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IMG_0088.mp3 (1.69 MB, 103 views)
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Old Dec 20, 2015 | 05:29 PM
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12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
Weird indeed, but I have no idea what's causing this. Something in the brake servo perhaps?
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Old Dec 20, 2015 | 05:48 PM
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I did some more checks and found outs it's nothing related to the brakes.
More like the sway bar bushings, replacing Tuesday and than checking to see if sound goes away. Thanks though for your reply DRB.
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Old Dec 21, 2015 | 09:01 AM
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I was going to say it sounds more suspension/bushing related. W202's are infamous for these failures.
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