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  1. Knocking now driving me crazy 
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    Over the past 1500 miles I have changed the following front suspension components but an annoying knock still exists:

    Both strut top mounts
    Both Shocks
    Both Springs
    Both Drop Links
    Both Ball Joints
    All 4 Wishbone Bushes
    Both Track Rod Ends
    Both Anti Roll Bar Bushes.

    And yet the knocking is still there. I have just ordered all 5 engine/gearbox mounts as a last resort.

    Any other things I could be missing I would love to know lol.
    Current Vehicles

    Passat B6 Estate 170PD (Bluefin Installed 200BHP) BMR Highline
    Aprilia RSV 1000 Factory
     
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  2. Re: Knocking now driving me crazy 
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    Quote Originally Posted by Marshall1975 View Post
    Over the past 1500 miles I have changed the following front suspension components but an annoying knock still exists:

    Both strut top mounts
    Both Shocks
    Both Springs
    Both Drop Links
    Both Ball Joints
    All 4 Wishbone Bushes
    Both Track Rod Ends
    Both Anti Roll Bar Bushes.

    And yet the knocking is still there. I have just ordered all 5 engine/gearbox mounts as a last resort.

    Any other things I could be missing I would love to know lol.
    Steering gear or inner tie rod ends?
     
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  3. Re: Knocking now driving me crazy 
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    Loose subframe bolts have been known to cause knocking as well
     
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  4. Re: Knocking now driving me crazy 
    #4
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    Also movement of the exhaust due to worn or missing rubbers, bent mounting pegs etc.
     
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  5. Re: Knocking now driving me crazy 
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    Just ordered replacement subframe bolts with the shims as thats an easy win. All the engine mounts have arrived so will do them also this weekend. The bottom pair look fun I must admit lol. Then like suggested the only things not replaced are the inner tie rods. Checked the exhaust from front to back and its very secure. I struggle to get it to knock anything even with me pulling or pushing on it.
    Current Vehicles

    Passat B6 Estate 170PD (Bluefin Installed 200BHP) BMR Highline
    Aprilia RSV 1000 Factory
     
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  6. Re: Knocking now driving me crazy 
    #6
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    It may sound extreme, but I tracked down where a noise was coming from in the engine by strapping three "Playstation karaoke" type microphones (they were USB and recognised by PC) in the engine bay and using a bit of multi-track recording software to get a "sound space" that I could use to work out the location. Very effective...
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  7. Re: Knocking now driving me crazy 
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    Yours manual or DSG?
     
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  8. Re: Knocking now driving me crazy 
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    Its a DSG
    Current Vehicles

    Passat B6 Estate 170PD (Bluefin Installed 200BHP) BMR Highline
    Aprilia RSV 1000 Factory
     
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  9. Re: Knocking now driving me crazy 
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    Quote Originally Posted by Marshall1975 View Post
    Its a DSG
    Check the inner CV tripod joint for play. When worn, can knock a bit before the vibration stage sets in. All good if only an insignificant amount of movement inside the housing in any outward direction (it moves back and forth inside the housing so that is the only major movement the joint should have. Also noise from inner tie rod ends usually only noticeable with full weight of car bearing on them - I found no play when the wheels were off and the car jacked up but a noticeable amount once I'd put the wheels back on and jacked up from under the ball joints thus simulating the load (still on axle stands at the time - I do have two 3 ton jacks though so could do this) . I could then feel the knocks when moving the wheels side to side with the steering lock off. I just replaced the whole rack with a sub 200 refurbed genuine unit as it came with new inners anyway. Plenty of good rack refurbishers in the Midlands / North. Wigan seems to have quite a few.
     
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  10. Re: Knocking now driving me crazy 
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    Thanks for the input Mitch. I'm gonna change the engine mounts which have now arrived and also the inner tie rods in the hope that its not the steering rack lol. If the knock is still there then that's everything except drive shafts and steering rack changed lol.
    Current Vehicles

    Passat B6 Estate 170PD (Bluefin Installed 200BHP) BMR Highline
    Aprilia RSV 1000 Factory
     
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