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Thread: Strange engine sound on the left side

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  1. Strange engine sound on the left side 
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    Hello all,

    Last week I had the Service done for the TPI 2043172, where the exhaust camshaft from the right side has been replaced due to knocking.
    Since then I think I’m experiencing a harsh noise on the left side of the engine, in comparison with the right side. I’m attaching a clip that I’ve made in order to get your feedback.

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  2. Re: Strange engine sound on the left side 
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    That sounds really bad. Go quickly to the dealership. They had to screw up something.

    Quote Originally Posted by tweetyblu View Post
    Hello all,

    Last week I had the Service done for the TPI 2043172, where the exhaust camshaft from the right side has been replaced due to knocking.
    Since then I think I’m experiencing a harsh noise on the left side of the engine, in comparison with the right side. I’m attaching a clip that I’ve made in order to get your feedback.

    iCloud
     
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  3. Re: Strange engine sound on the left side 
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    The strange thing is that the exhaust right camshaft has been replaced, so the service job was done on the right side. I must say that on the right day I cannot hear this harsh sound.
     
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  4. Re: Strange engine sound on the left side 
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    Quote Originally Posted by tweetyblu View Post
    The strange thing is that the exhaust right camshaft has been replaced, so the service job was done on the right side. I must say that on the right day I cannot hear this harsh sound.
    I think, as it was recorded, documented, so you have a proof.

    IMHO while they made the repair on the exhaust system, then they could easily force/damage the exhaustor system's connection on the right side of the engine. For me, this noise sounds like a completly broken exhaustor system.
    Audi Q7/4M MY2016, 3.0 TDI/200 KW Quattro
     
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  5. Re: Strange engine sound on the left side 
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    Maybe I wasn’t clear, the harsh sound comes from the left side, and the recording were done on the left side. The left side was untouched by the dealer...
     
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  6. Re: Strange engine sound on the left side 
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    No, you were absolutely clear!

    However as the exhaust system connects to both sides of the engine (IMHO), so if they touched it on the right side, then they could accidentaly harm the left side's connection. It's just an idea, but I agree with Retom: you should show this to the service as soon as possible.
    Audi Q7/4M MY2016, 3.0 TDI/200 KW Quattro
     
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  7. Re: Strange engine sound on the left side 
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    Thanks for clearing this. Something that I haven’t mentioned, this appears and begins to be more noticeable once the engine is hot.
     
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  8. Re: Strange engine sound on the left side 
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    Thank you for the explanation. IMHO it could explain what happened: If the engine is warm, the gasket will not fill the gap between the exhaustor and the engine. When they checked the engine it was cold, so there was no leakage, and they felt, they did everything right. This is a vis maior, simply show them the evidence, and they will repair it. IMHO.
    Audi Q7/4M MY2016, 3.0 TDI/200 KW Quattro
     
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  9. Re: Strange engine sound on the left side 
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    As I have mentioned before: it does't sound good. if it is a leaking exhaust gasket it can do more damage. It is easy to diagnose and to fix the blown out exhaust gasket. Go to the service ASAP. Hopefully this is nothing more serious.
     
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  10. Re: Strange engine sound on the left side 
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    Thanks all for your advises, I’ve just dropped the car to the dealer and complained a lot about their mess. Hopefully they will figure out what’s wrong very quickly since I need the car for the holidays .
     
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