Rasim

Hi all,

I have 2 AMG vehicle with v6 kompessor and v8 e55 kompressor, both of them have strange engine sound that appear after 5 min of cold start at morning. It is not hydraulic lifters sound this sound is little bit lower and muffled, better hear able under wheel defense covered. Some service shop says this sound creates contact with the piston and connecting rod at their maximum amplitude at the top ofthe fold. Can you help me with this issue.

70 000 miles, new 5/40 synthetic oil. car is stock.

Thanks

Helli217

If I understand you have a metallic sounding ticking or knocking noise best heard from your wheel well area? I have this same sound. Mine comes from (I think) drivers side, and I can't exactly tell where the origin is. I have tried stethescope and laying under car. I did here the noise the best when stethescoping the fuel rail, but then again that could have been the closest injector in synch with it. I know i need motor mounts, and I am wondering if this is the cause. Haven't had time to look further into it lately.

GT-ER

Meh, my engine makes a hundred noises. It's a beast, and thus it will sound like a beast.

berti_00

^^^ lol awesome

Rasim

I met a friend of mine look at his cls 55 amg same noise of engine and power steering, is it a normal such power steering noise?
anyway i put video of my engine sound for you to compare,,

MindBend

"It's a beast, and thus it will sound like a beast."

Amen to that. I wished mine would make Godzilla sounds!

93RX7LSX

Mercedes engines have loud injectors, the oil pumps are also loud, valvetrain is loud. Owners cannot be sensitive. If you're sensitive, get a different vehicle, maybe a toyota or lexus.

Rasim

Rasim

Rasim

tsquare

All those sounds in the locations you recorded sound normal to me.

These are not quiet "nice" motors - they are noisy "angry" motors

BrianS

Video one and three sound normal. Video two is bit noisy but could be the mic on the camera. Oil level OK? I thought mine was noisy once until I found it to be 2qts low, but it was time to change the oil anyway.

Or maybe your engine is upset that all its friends are making fun of how dirty it is?

Rasim

Yea i have just changed oil W5:40 shell 8 liter, Why it is so noisy at cold start?

Ronan Mc Cabe

I am certainly no expert and have only owned my E55 for a few months but I do not think your motor has any unusual sounds.

outrun

Mine sounds the same. Like a noisy valve train. Seems like everyone has this noise. I write it off as normal.

Helli217

Mine has same exact sound on driver's side. More pronounced tapping heard from SAME two areas. Not all that worried, I just like to know what is making the noise. Regardless mine goes like hell. So wutev.

BTW-don't clean your engine. There's so much dirt it's probably insulating most of the noise. LOL, jkjk.

93RX7LSX

Cold start, the oil is not in operating temperature. Once it gets to 190-200 degrees it will start to work properly. The engine & it's different components are limited in their abilities below operating temps.