Please help me identify this noise - VIDEO inside
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Newbie
Joined: Jun 2017
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Clk230 Avantgarde
Please help me identify this noise - VIDEO inside
Hi guys,
Have been working through issues on my CLK230 since buying - I have a tappy/rattly sound coming from somewhere, sounds sort of like tappets, but not sure.
I've since replaced the MAF with a brand new VDO Siemens genuine item and also the catalytic converter, all codes have now disappeared, but I'm still experiencing the below noise - a tappy / rattly sound
It sounds more like it's coming from underneath in the exhaust area as it's more obvious when putting my head there than anywhere in the engine bay. I've had a look around the exhaust manifold, there doesn't appear to be any cracks or leaks, no soot or excessive noise from there. Please help!
Have been working through issues on my CLK230 since buying - I have a tappy/rattly sound coming from somewhere, sounds sort of like tappets, but not sure.
I've since replaced the MAF with a brand new VDO Siemens genuine item and also the catalytic converter, all codes have now disappeared, but I'm still experiencing the below noise - a tappy / rattly sound
It sounds more like it's coming from underneath in the exhaust area as it's more obvious when putting my head there than anywhere in the engine bay. I've had a look around the exhaust manifold, there doesn't appear to be any cracks or leaks, no soot or excessive noise from there. Please help!
Newbie
Joined: May 2014
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98 TC
Its possible that a piece of the old catalytic converter is inside the rear exhaust area.
I find a lot of these knocking on the exhaust with a soft mallet or the palm of my hand (when cold or with gloves).
They break apart inside and if it goes on long enough, a piece can lodge in the exhaust pipe stopping it up and cause the engine to run rough or stall.
I find a lot of these knocking on the exhaust with a soft mallet or the palm of my hand (when cold or with gloves).
They break apart inside and if it goes on long enough, a piece can lodge in the exhaust pipe stopping it up and cause the engine to run rough or stall.
Last edited by DPUDERER; Aug 17, 2017 at 03:38 PM. Reason: I didn't see that you had changed the converter already
Member
Joined: Jun 2017
Posts: 127
Likes: 31
E550
I'd go back to the exhaust shop and put it up on the hoist and start the engine and then isolate it from under the car.
Another way I've isolated exhaust rattles is to get a long piece of wood and start pushing it against the exhaust pipes at different locations while the engine is running.
The rattle will change once you're close to the area thats causing the sound.
Another way I've isolated exhaust rattles is to get a long piece of wood and start pushing it against the exhaust pipes at different locations while the engine is running.
The rattle will change once you're close to the area thats causing the sound.
