engrol Posted July 10 Share Posted July 10 The vehicle in question is a 2012 C63 AMG with four doors and has accumulated a mileage of 73,000 kilometres. I perceive a rattling or chattering noise, similar to that of an exhaust leak or a diesel engine, if I lightly touch the accelerator pedal between 1500 and 2000 RPMs in higher ratios such as 4th or 5th gear, particularly while the vehicle is under load. By exerting enough force on the automobile, I am able to eliminate any low rpm acceleration clatter. The incessant sound that emanates from this vehicle has become quite bothersome to the extent that it is the only thing I hear when driving. Link to comment Share on other sites More sharing options...
engrol Posted July 10 Author Share Posted July 10 The car model is C3. The vehicle in question is a 2012 C63 AMG with four doors and has been driven for a total of 73,000 km. I perceive a rattling or chattering noise, similar to that of an exhaust leakage or a diesel engine, whenever I slightly depress the accelerator pedal between 1500 and 2000 RPMs in higher ratios (4th or 5th gear), particularly when the vehicle is under load. Applying enough force to the automobile eliminates any occurrence of low RPM acceleration chatter. The constant sound emitted by this vehicle has become quite bothersome to the extent that it is the only thing I hear when driving. Link to comment Share on other sites More sharing options...
AmericaMonster Posted July 10 Share Posted July 10 The audio quality is terrible. Is it possible that there is a break in the manifold? They have the ability to produce peculiar sounds. Link to comment Share on other sites More sharing options...
engrol Posted July 10 Author Share Posted July 10 Greetings, Presented below is another video that I have created: Link to comment Share on other sites More sharing options...
engrol Posted July 10 Author Share Posted July 10 Link to comment Share on other sites More sharing options...
engrol Posted July 10 Author Share Posted July 10 If it is feasible, you may perceive a faint noise resembling an exhaust leakage, akin to a sharp rattle, when I lightly press the paddle. This sound becomes audible within the range of 1500 to 2000 rpms and ceases when I release the paddle. Despite disassembling and inspecting the intake, no issues were identified or resolved. I have thoroughly inspected the exhaust clamps and found no signs of any leaks. Additionally, I have examined and replaced the headers, including the header gasket. I have also inspected and replaced the catalytic converters with those from another vehicle. Despite these efforts, the sound persists. The sound is originating from the right bank and is audible on the driver's side (RHD). Link to comment Share on other sites More sharing options...
engrol Posted July 10 Author Share Posted July 10 Is there anyone available? Link to comment Share on other sites More sharing options...
AmericaMonster Posted July 10 Share Posted July 10 Have you ruled out a fractured exhaust manifold as the origin of the sound? Link to comment Share on other sites More sharing options...
engrol Posted July 10 Author Share Posted July 10 Yes, I have replaced the headers on my friend's vehicle, along with a new header gasket. I also changed the right side catalytic converter since the noise was only coming from that side. However, this did not make any impact in resolving the issue. I had anticipated that the problem was related to the exhaust, headers, or catalytic converter, and I believed that replacing these components would resolve the issue. Unfortunately, it seems that the problem is more complex than first thought. Link to comment Share on other sites More sharing options...
engrol Posted July 10 Author Share Posted July 10 Created a new video: Link to comment Share on other sites More sharing options...
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