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Author Topic: Knocking noise when pulling away in 1st  (Read 3401 times)

Offline Havelin150

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Knocking noise when pulling away in 1st
« on: March 19, 2021, 01:40:34 pm »
Hi all,

After some help/advice in case someone has had the same issue. I have a DSG Edition 30 on 112k now. I've got this really annoying knocking noise when I first start to roll away in 1st, no throttle. It's not as loud when hot but much worse when cold. I did have a transmission mount insert installed, have removed this and still getting the same knocking sound. Here is a link to a clip of it-



Any ideas/help would be massively appreciated as it's driving me nuts.

Thanks
« Last Edit: March 19, 2021, 06:32:26 pm by Andy »

Online GreigC

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Re: Knocking noise when pulling away in 1st
« Reply #1 on: March 19, 2021, 03:13:14 pm »
If you can record the noise it could help diagnosis. 👍

Offline Havelin150

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Re: Knocking noise when pulling away in 1st
« Reply #2 on: March 19, 2021, 03:40:43 pm »
Is the link I posted not working?

Offline amanda

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Re: Knocking noise when pulling away in 1st
« Reply #3 on: March 19, 2021, 04:22:36 pm »
It could be anything as requested a vid would be fab but my guess it could be something like track rod ends ,ball joint or drive shaft as those are common faults and new bush could have magnified problem

Offline Andy

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Re: Knocking noise when pulling away in 1st
« Reply #4 on: March 19, 2021, 06:33:07 pm »
Sorted the video link  for you 👍

Offline Havelin150

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Re: Knocking noise when pulling away in 1st
« Reply #5 on: March 19, 2021, 06:49:13 pm »
Thanks Andy, is it something I did wrong? for future reference.

Offline amanda

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Re: Knocking noise when pulling away in 1st
« Reply #6 on: March 19, 2021, 07:14:33 pm »
How is gearbox performing???

Offline Andy

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Re: Knocking noise when pulling away in 1st
« Reply #7 on: March 19, 2021, 07:15:43 pm »
Thanks Andy, is it something I did wrong? for future reference.
the link was wrong so I uploaded your video to you tube then copy.and paste it on here


Offline Havelin150

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Re: Knocking noise when pulling away in 1st
« Reply #8 on: March 19, 2021, 07:21:49 pm »
Gearbox fine, put it through basic settings a couple of weeks back. Although if cold and I sit in drive with my foot on the brake it makes a quiet noise which goes if I click it in neutral. Think that's normal though.

Offline amanda

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Re: Knocking noise when pulling away in 1st
« Reply #9 on: March 19, 2021, 07:45:07 pm »
Gearbox fine, put it through basic settings a couple of weeks back. Although if cold and I sit in drive with my foot on the brake it makes a quiet noise which goes if I click it in neutral. Think that's normal though.

Only reason I ask is mine isn’t dsg but when my gearbox failed 1st gear gave several faults but none were logged as codes within 4 weeks of non starting rough selection and generally rough starting the gearbox failed. New gearbox sorted it and it’s been fine for last 3 yrs and mine was about same mileage as yours when it failed.....might be worth looking at as an auto gearbox check isn’t expensive

Offline fakie1977

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Re: Knocking noise when pulling away in 1st
« Reply #10 on: March 19, 2021, 09:05:18 pm »
Does it also do the same in reverse? Sounds like the mechatronic unit. You can get them refurbished. No idea of cost though (as I haven’t needed to for mine)


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Offline LC5F

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Re: Knocking noise when pulling away in 1st
« Reply #11 on: March 20, 2021, 12:24:25 pm »
Gearbox fine, put it through basic settings a couple of weeks back. Although if cold and I sit in drive with my foot on the brake it makes a quiet noise which goes if I click it in neutral. Think that's normal though.

Assume this is with it in drive with brakes on? - yes normal, that's the clutch slipping.

I am not really hearing any particular stand out noises in your video - BTW it worked for me in Google before the youtube version.

Subframe creaking / knocking is a common issue on Mk5's where subframe bolts stretch, only reported occuring when pulling away.

Offline Havelin150

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Re: Knocking noise when pulling away in 1st
« Reply #12 on: March 20, 2021, 03:35:11 pm »
Gearbox fine, put it through basic settings a couple of weeks back. Although if cold and I sit in drive with my foot on the brake it makes a quiet noise which goes if I click it in neutral. Think that's normal though.

Only reason I ask is mine isn’t dsg but when my gearbox failed 1st gear gave several faults but none were logged as codes within 4 weeks of non starting rough selection and generally rough starting the gearbox failed. New gearbox sorted it and it’s been fine for last 3 yrs and mine was about same mileage as yours when it failed.....might be worth looking at as an auto gearbox check isn’t expensive

Well I have just scanned it and I have a p17100 input speed sensor fault come up in the transmission module so might have to look deeper into that. When rolling in 2nd then I let off the accelerator i do get a small knock aswell which have only noticed recently leading me to think it's a mount etc.

Offline Havelin150

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Re: Knocking noise when pulling away in 1st
« Reply #13 on: March 20, 2021, 03:36:39 pm »
Does it also do the same in reverse? Sounds like the mechatronic unit. You can get them refurbished. No idea of cost though (as I haven’t needed to for mine)


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Yes sometimes in reverse too, much worse in 1st going forward though. As mentioned above I am also getting a single knock when I let off when rolling in 2nd from cold.

Offline Havelin150

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Re: Knocking noise when pulling away in 1st
« Reply #14 on: March 20, 2021, 03:38:41 pm »
Gearbox fine, put it through basic settings a couple of weeks back. Although if cold and I sit in drive with my foot on the brake it makes a quiet noise which goes if I click it in neutral. Think that's normal though.

Assume this is with it in drive with brakes on? - yes normal, that's the clutch slipping.

I am not really hearing any particular stand out noises in your video - BTW it worked for me in Google before the youtube version.

Subframe creaking / knocking is a common issue on Mk5's where subframe bolts stretch, only reported occuring when pulling away.

Yes in drive, worse if I touch the brakes and slow the car to a slow creep.

That's a good shout as it goes, do you think that could also contribute the the small knock I get when letting off in 2nd? I read subframe clunks a bit when at higher speeds, I'm not getting that
« Last Edit: March 20, 2021, 04:00:14 pm by Havelin150 »