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I’m having an issue with my 2013 C250 CDI (W204) where the brakes squeal at low speeds (under 20 km/h), especially in stop-and-go traffic.
Here’s what I’ve done so far:
Replaced the brake discs.
Tried various brake pads, from semi-metallic to ceramic.
Currently running Brembo pads.
Installed new anti-rattle clips.
The brakes work perfectly at higher speeds, but the low-speed squeal persists.
Could this still be a compatibility issue between pads and discs, or is there something else I might be missing? Any advice would be greatly appreciated!
I’m having an issue with my 2013 C250 CDI (W204) where the brakes squeal at low speeds (under 20 km/h), especially in stop-and-go traffic.
Here’s what I’ve done so far:
Replaced the brake discs.
Tried various brake pads, from semi-metallic to ceramic.
Currently running Brembo pads.
Installed new anti-rattle clips.
The brakes work perfectly at higher speeds, but the low-speed squeal persists.
Could this still be a compatibility issue between pads and discs, or is there something else I might be missing? Any advice would be greatly appreciated!
Thanks in advance.
Brake squeal is normally caused by the pads vibrating against the rotor or the caliper bracket. A couple of suggestions spring to mind. Clean & lubricate the caliper pins so the caliper moves smoothly in and out. Add brake pad anti-squeal paste to the back of the pads where they contact the caliper pad and the face of the piston.
I can only say what I do on my W204 and I have not heard any noises from them, I think the brakes work perfectly. When I got the car around 5yrs ago I replaced the rotors with Zimmerman rotors all around. I bought the OE listed brands for pads, Ferodo semi metallic front pads and ATE semi metallic rear pads.
I came across an MB worksheet showing where to apply grease and where not to apply grease depending on which set-up you have.
I have the last two brake calipers. For the front calipers I only applied grease UNDER the two anti-rattle clips before installing them on the caliper bracket. Every so often when im working on the car and have the front wheels off i'll spray some brake cleaner where the pads ride on these clips.
For the rear calipers I only apply grease on the caliper brackets where the tabs of the brake pads fit in. I keep the caliper guide pins completely clean. I replaced the caliper guide pin boots just because they looked cracked on mine.
I've been flushing and bleeding the brake lines every 2yrs.
They work great for about 200 km after replacing the pads. However, the squealing starts after that, and it's not just a minor squeal—it’s a loud screeching noise. I’ve tried three different brake pads.
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Low-Speed Brake Squeal on 2013 C250 CDI (W204)
