Ticking
Thread Starter
Newbie
Joined: Apr 2022
Posts: 7
Likes: 0
From: Gold Coast, Australia
C63 AMG P31
Ticking
Hi everyone,
Just as a preface, I am aware that there are countless threads on these forums about ticks. I have spent the last couple of days reading the forums as a guest trying to understand these noises.
About a week ago I noticed for the first time a ticking noise when the car was idle. It’s most noticeable when the car is next to something. Whether or not this is normal and I’ve only started paying attention to it I am unsure. I cannot hear the tick when the windows are up. The ticks increase with engine revs. It seems to be louder on the right side (drivers side in Australia) next to the wheel. Noise persists even when engine is warm. No cam-shaft rattle on cold starts either. I have checked the oil several times now and the oil is fine.
A few days later I had lifter tick on start up. This went away once the engine was warm and has not returned. The lifter tick was audible even with the windows up and is unlike what I hear now. It is much quieter now.
I’ve tried to compare my own noises with the hood up and down with some videos posted on YouTube. I notice the same sort of tick from outside of the car with the hood down in some walkaround videos.
I have provided a video for the noise I hear from the outside of the car with the hood down as well as of the engine bay with the hood up:
I would gratefully appreciate any thoughts about this?
Just as a preface, I am aware that there are countless threads on these forums about ticks. I have spent the last couple of days reading the forums as a guest trying to understand these noises.
About a week ago I noticed for the first time a ticking noise when the car was idle. It’s most noticeable when the car is next to something. Whether or not this is normal and I’ve only started paying attention to it I am unsure. I cannot hear the tick when the windows are up. The ticks increase with engine revs. It seems to be louder on the right side (drivers side in Australia) next to the wheel. Noise persists even when engine is warm. No cam-shaft rattle on cold starts either. I have checked the oil several times now and the oil is fine.
A few days later I had lifter tick on start up. This went away once the engine was warm and has not returned. The lifter tick was audible even with the windows up and is unlike what I hear now. It is much quieter now.
I’ve tried to compare my own noises with the hood up and down with some videos posted on YouTube. I notice the same sort of tick from outside of the car with the hood down in some walkaround videos.
I have provided a video for the noise I hear from the outside of the car with the hood down as well as of the engine bay with the hood up:
I would gratefully appreciate any thoughts about this?
Last edited by cyasomeday; Apr 9, 2022 at 03:17 AM.
Thread Starter
Newbie
Joined: Apr 2022
Posts: 7
Likes: 0
From: Gold Coast, Australia
C63 AMG P31
Oil when checked cold and warm is full. Car had about 125000km. 2013 model.
The lifter tick I had that went away quickly was far louder than this. I could hear that with my windows up.
This I can’t hear with my windows up. Only really when I’m next to something.
The lifter tick I had that went away quickly was far louder than this. I could hear that with my windows up.
This I can’t hear with my windows up. Only really when I’m next to something.
MBWorld Fanatic!
Joined: Nov 2012
Posts: 2,768
Likes: 419
'10 C63
It’s tough to hear in the video. Doesn’t sound like the lifter tick I’ve had. I can’t tell but that might be an exhaust leak. Almost sounds like DI tick (obviously the M156 is port injection). Maybe a pulley is on the way out? How old are the pulleys? Any idea of the area where the noise is coming from? I just can’t hear enough from the video
Thread Starter
Newbie
Joined: Apr 2022
Posts: 7
Likes: 0
From: Gold Coast, Australia
C63 AMG P31
That’s interesting. Are exhaust leaks meant to increase with rpm? I will definitely get the car checked out soon. Just want to be fully aware of all the potential issues so I can be more switched on when talking with a service rep.
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Thread Starter
Newbie
Joined: Apr 2022
Posts: 7
Likes: 0
From: Gold Coast, Australia
C63 AMG P31
yeah that’s exactly right. I’ve booked the first available time at Mercedes’ to get them to look at it, as well as explore the other potential issues, but I’m glad you’ve had the same issue too. Was it expensive to fix?
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Senior Member
Joined: Jun 2020
Posts: 257
Likes: 105
From: Toronto
2013 C63 P31
just crouch down... is it coming from your exhaust?
Member
Joined: Dec 2016
Posts: 106
Likes: 10
'12 C63 P31 coupe
I do all my maintenance myself. Once I had the car up on stands it took me 30 seconds. If that's what it is, they shouldn't charge you much at all. The clamps use fasteners that you tighten with external torx sockets. I've found that whenever I do work that requires me to loosen those clamps to move the exhaust (dropping rear lower control arms for instance), I always have to go back and tighten them up a second time after a few heat cycles or I get that annoying tick.
Thread Starter
Newbie
Joined: Apr 2022
Posts: 7
Likes: 0
From: Gold Coast, Australia
C63 AMG P31
I do all my maintenance myself. Once I had the car up on stands it took me 30 seconds. If that's what it is, they shouldn't charge you much at all. The clamps use fasteners that you tighten with external torx sockets. I've found that whenever I do work that requires me to loosen those clamps to move the exhaust (dropping rear lower control arms for instance), I always have to go back and tighten them up a second time after a few heat cycles or I get that annoying tick.
While I wait for the checkup at Mercedes, I've looked at a lot of walkarounds of the w204's with them idling and I can hear the same noise from the outside. I'm chalking the noise from the outside to being normal, the loose bracket if it can be loose near the front wheel arch, or the oil pump chain. But will keep listening and being open minded.
