Brake lockup after washing
Thread Starter
Junior Member
Joined: Apr 2020
Posts: 30
Likes: 12
From: Naples, Florida
2019 C63 Cabriolet/ 2020 GLC43
Brake lockup after washing
Anyone have an issue with new C63/C63S with brakes locking up after washing the car and pulling it into garage and sitting 24-48 hours? I have 2019 C63 Cabriolet and this has happened 3x. I went to back out this morning in reverse and brakes were locked. Parking brake was not one. Had to give it quite a bit of gas and then heard a clunk and brakes released. Anyone else experience this. I know the dealership will definitely give me the 2 headed look on this one..Also anyone experience random front end (2-3 seconds) being sloppy and loose feeling?
Out Of Control!!
Joined: Nov 2018
Posts: 11,468
Likes: 5,356
From: San Francisco Bay Area
2019 C63CS
Yes, that will happen. The brake dust contains metal and it will quickly build surface rust and your pads seize to the rotors. Completely normal. The way around it is to go for a quick drive after washing the car to dry the brakes off and get all the water off the rotors and the pads before parking the car for the day.
MBWorld Fanatic!
Joined: Dec 2019
Posts: 1,511
Likes: 424
From: Florida
AMG C63s
On the sloppy and loose / not sure if we feel the same but sometimes I also get that feeling and then check it by doing some quick lane changes to check if I am just imagine it or if it it's real. Always end up thinking I am just imagine it.
Out Of Control!!
Joined: Nov 2018
Posts: 11,468
Likes: 5,356
From: San Francisco Bay Area
2019 C63CS
Oh, I missed that part. I think you need to qualify this some more. As it stands there I can't say that's something I felt, however, on my usual spirited highway driving I found the suspension in Comfort mode a bit too loose, so now my Individual mode which I use for most of my highway driving I have the suspension in Sport and AMG DYNAMICS in Pro. That nicely buttons down the car and gives it a nice turn in response w/o really losing any comfort. I ended up finding the Sport suspension mode to be the perfect setting for fast comfortable driving. Around town I keep it in Comfort mode and that's fine. It never feels like it doesn't want to turn in, but before with the suspension in Comfort mode on some of the highway bends I take more spirited the turn in felt delayed and awkward. I put the car in Comfort mode on the highway if I'm just cruising along with DISTRONIC and Steering Assist engaged, but if I'm steering myself I don't like the turn-in response in Comfort mode at higher speeds. This car is very adjustable and you just need to take your time in finding your preferred setup.
Last edited by superswiss; Aug 3, 2020 at 09:13 PM.
Senior Member
Joined: Oct 2007
Posts: 380
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2000 c230 kompressor special edition, 2012 E550 coupe (sold), 2017 C63 sedan (sold), 2018 C63S Coupe
I've experienced the sloppy/lose feel on the highway as well. Only at highway speeds and only in comfort mode, it almost feels like the electronic steering system falls asleep and it takes a quick second to wake up and respond. Never caused me any real issues, just some unease for that split second too long it takes to react. I'm glad I'm not the only one, I kind of felt like it was all in my head as well...haha
