Hey everyone. Some might saw my previous post about my new AMG 63S being slow. I didn't know, neither my salesperson explained to me that there was a "Brake in" time where I suppose to drive my car on Comfort only for the first 1K miles. I was driving it pretty aggressively for the first 400 miles, I was trying to see how the car can perform ( Man, I wish I knew ), I never tried launch control though. As soon as I learned that there is a "Brake in time" from you guys, I started driving it on Comfort only without going above 4K RPM and 80 mph. But, last few days I start noticing some weird clicking sounds when gearbox switch from 3rd to 2nd and to 1 gear when I brake (Comfort - no manual shifting).
I don't want to take it to service now, mainly because I worry that they will see how I been driving it. Does anyone know if the car keeps logs or there is no way for them to know? I want to wait until I hit 1000 miles before I take it to MB Service, I'm at 700 now.

 

Just drive it until 1000 miles. Do some highway driving this weekend to bring the mileage up then take it to service.

Can you do a video of this "clicking" sound? How long does it last for? Pretty sure my 17' c63s Coupe does that too.

 

Not sure if camera will record sounds well. It’s sounds almost like a bunch of stones escaping tires, you know when you catch stones in your tires and they pop out. It’s not loud, barely noticeable.

 

So every time you change gear using the paddles from 3 to 2 it makes a "tick tick clack clack" sound? No, that's definitely not normal.
Just take it to the dealer tomorrow and show them those sounds. Make sure they fix it. If they ask you if you've been driving it hard during break in, just say "no".

How aggressive were you driving it during the first 400 miles? Putting it into Sport+, Race and launching it etc.?

 

Just turn up the Burmester sound system and problem solved...LOL

But seriously I have NOT noticed this specifically on my 2018 coupe but I do notice the car makes all kinds of little clicks and noises...it is a performance car. Not a luxury car even thought it wears the Silver Arrow.

And for me as long as the important things like boost, temperatures (oil, tranny and coolant) and the performance works to perfection then I have no issues with little noises...just my 2 cents!

 

I don't need to use manual - paddle shifts to hear the sound it's producing that noise on Auto.

that's definitely not normal.
What if the car keeps logs on how I've been driving it? I've been driving it on Race and Sport + almost all the time.

 

Just for peace of mind I would bring it into MB dealership service.. My 2019 C63S coupe (purchased April 2019) had this sticker (photo) on inside Driver side windshield showing restrictions. Also at the time of pick-up



the MB Tech. Advisor went over the car informing me of the break in period.

 

Makes me sad that I didn't know about it

 

You bought a high performance car. That tell me you’re a car guy. Surprised me that you did not know “break-in” period on all new cars.

 

No doubt they can get the log infos if they suspect abused. I remember on the e46 M3 famous for blown engine due to over rev cause by driver error down shift too many gear. It happened to my friend car. They show him the proof and warranty denied. $10k to rebuild his engine.

 

you made a few threads on how "slow" your c63S is and what you can do to make it faster. you were trying to log 0-60 times which means you were flooring the gas pedal. we are not the dealership, no one here is going to judge you or care how you drive but how can you buy such an expensive car and not even care to do some research or read the owners manual? . every single car has the sticker on the windshield regarding the proper break in instructions. does yours not have it?

 

Your rear diff and/or trans gears most likely didn’t bed in properly if you were hard on the car right out of the lot for hundreds of miles.

If you didn’t know about break-in periods for sports cars, hopefully you know about waiting for the engine oil, trans and coolant getting up to temp before putting load/boost on the engine.

Good luck, my guess is the e-diff or the trans.

 

thanks. Yes I always wait for the engine and trans temp get out of the blue zone before driving it more aggressively.

 

Alright, here is an update. I took my car to service to check out the clacking sounds my car make when it gears down on 3rd and 2nd gears. I test drove the car with AMG Forman he said he heard it (it's not super noticeable if the environment is loud and you're not driving a car), he said he will drive it by himself more.
They called me yesterday and said the car was ready. They said that everything as it should be, he was able to reproduce the sound. Here is his statement from my Labor list:

"Test drove vehicle with customer and dublicated the concern twice of a one time cracking sound when applying the brakes when the transmission is in gear 4 or above. Raised vehicle and removed all engine compartment panels. Inspected engine bay and the front suspension. No signs of anything lose or contact. Connected the SDS and rand short test. No relevant fault codes. Checked tips and found document LiI42.47-P-067502. Reinstalled all Components and test drove vehicle again from 813 to 821. Duplicated the noise. Turned off ESP and put vehicle in the Dynometer mode and found noise could not be reproduced with ESP off. This is normal noise of the ESP hydraulic unit. If the vehicle decelerates from a speed greater then 30mph, and ABD control not activated, there is a signle cracking noise is in the area of the EST hydraulic unit."

I'm not sure what to think about this, to me it definitely doesn't sound normal. I drove AMG 63 earlier and either it didn't have these cracking sounds (not sound, multiple sounds, sounds like something is switching) or I was not paying attention to it. I can't say it's barely noticeable, you can feel and hear it pretty well if you drive it. I'm at 900 miles brake-in now, I'm thinking maybe I'll wait until 1K and give it some love and see if the issue will become worse? After that, I was thinking to take it to the different dealership service center.

 

I find Mercedes dealers to be the worst. They are so **** about everything and their favourite quote has been 'Oh this is normal'.

 

I'm so sick of fu*cking Mercedes dealerships and their "it's normal" spiel. They must be trained to say this everywhere in the world as this is exactly what they say here in Sydney too.

Take it to another dealer and don't stop until it's fixed.

Time to go John Wick and start "dealer shopping". Don't accept this bullsh*t. They are scheming.

GET IT FIXED. IT'S NOT NORMAL!

 

. Agree, bring to another MB Dealership otherwise these issues just eat at you. I identify with you. Also you may want to bring to AMG Indi specialist just to get an independent opinion.

 

What's the latest update on this? Did you end up getting it fixed or have you decided to live with it?

 

I wonder how many people comply to the 85MPH up to 1000miles? ;-) Rolling in high gear at 4000RPM gets you there quickly.

 

I decided to live with it. AMG Tech said that everything was sounding normal to them. And I kind of decided - hack it, it's a lease car, I'll drive it as I stole it . If anything happens to it, it's their fault now not catching or addressing the issue at the time when I brought to their specialists.

It drives well now after brake in. Sounds is there but don't bother me as much since performance is fine.

 

How is the car going now mate, have you still got it? Still hearing the clicky sounds?