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Author Topic: Single Knock When Moving Off - gearbox/DMF  (Read 4635 times)

Offline Lyons

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Single Knock When Moving Off - gearbox/DMF
« on: June 12, 2015, 03:54:17 pm »
Over the last few days my car has developed a knock when moving off from stationary. It doesn't happen every time, and is just a single knock. It's coming from the front. I don't believe it to be the steering as its when the car is straight, and jiggling the wheel doesn't induce it.

Any ideas as to what it may be?!
« Last Edit: July 15, 2015, 01:23:06 pm by Lyons »

Redemption

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Re: Single Knock When Moving Off
« Reply #1 on: June 12, 2015, 07:02:25 pm »
Sub-Frame perhaps? Fairly common issue that can be solved by fitting these:-

www.awesomegti.com/ecs-subframe-spacer-plates-kit-mk5-mk6

Offline Lyons

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Re: Single Knock When Moving Off
« Reply #2 on: June 12, 2015, 07:36:27 pm »
Thanks. I read about it but it seems to occur on lock too?

I suppose for the £ it would be safer to fit them anyway.

Redemption

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Re: Single Knock When Moving Off
« Reply #3 on: June 12, 2015, 07:55:17 pm »
That's a cheap option to start with. Chasing down knocks can quickly become an expensive ball-ache.

Offline Lucas017

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Re: Single Knock When Moving Off
« Reply #4 on: June 12, 2015, 08:20:13 pm »
I think I may have the same issue.

Does it appear to be louder some days than others?

Offline GTI-Pirelli

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Re: Single Knock When Moving Off
« Reply #5 on: June 12, 2015, 11:04:27 pm »
Thanks. I read about it but it seems to occur on lock too?

I suppose for the £ it would be safer to fit them anyway.

I had side to side knock. Spirited driving caused it to knock on every corner and full lock in and out of parking spaces.
Sub-frame bolts solved it. :happy2:
 
2017 Audi S4

Offline Softishman

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Re: Single Knock When Moving Off
« Reply #6 on: June 13, 2015, 08:00:20 am »
Had this knocking myself when taking off ond stopping one knoch could be heard! Went for the big solution straight away because i read that the VW spacer kit not always worked...
This is the sh*t!:
http://www.tyrolsport.com/suspension/chassis/tyrolsport-deadset-rigid-subframe-collar-kit-for-all-mk5/6-jetta-gli-and-mk2-audi-tt/

Offline Lyons

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Re: Single Knock When Moving Off
« Reply #7 on: June 13, 2015, 10:02:55 am »
That link says there's a TSB for it? Is that America only?

Offline Softishman

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Re: Single Knock When Moving Off
« Reply #8 on: June 13, 2015, 04:16:48 pm »
Don't know that, i am in Sweden... :pomppomp:
Big spring service and update;

Offline bigeyd

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Re: Single Knock When Moving Off
« Reply #9 on: June 14, 2015, 08:09:52 am »
Sub-Frame perhaps? Fairly common issue that can be solved by fitting these:-

www.awesomegti.com/ecs-subframe-spacer-plates-kit-mk5-mk6
I have a knock but its a rarity so I will go for the cheaper kit and post results

Offline Lyons

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Re: Single Knock When Moving Off
« Reply #10 on: July 05, 2015, 06:52:12 am »
More noises.

A fairly loud continuous knock that gets louder/faster the faster you go- slows right down when moving slowly. It pretty much disappears under heavy braking and accelerating, and is loudest when you lift your fit off the accelerator.

I should add that the car is booked in next week, so I'm not after an Internet diagnose as I appreciate it could be anything. Knowing nothing about mechanical bits, I'm just curious as to what it may be.
 

Offline Johnsy

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Re: Single Knock When Moving Off
« Reply #11 on: July 05, 2015, 09:31:38 am »
More noises.

A fairly loud continuous knock that gets louder/faster the faster you go- slows right down when moving slowly. It pretty much disappears under heavy braking and accelerating, and is loudest when you lift your fit off the accelerator.

I should add that the car is booked in next week, so I'm not after an Internet diagnose as I appreciate it could be anything. Knowing nothing about mechanical bits, I'm just curious as to what it may be.

From  your description it could be a drive shaft! .   

Interested not to hear if that cheaper bolt kit from awesome has solved the op original problem. I guess the cheaper option was upgrade to what VW had come up wit and the more expensive options is every bolt in the subframe

Johnsy

Offline Lyons

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Re: Single Knock When Moving Off
« Reply #12 on: July 15, 2015, 07:58:00 am »
More noises.

A fairly loud continuous knock that gets louder/faster the faster you go- slows right down when moving slowly. It pretty much disappears under heavy braking and accelerating, and is loudest when you lift your fit off the accelerator.

I should add that the car is booked in next week, so I'm not after an Internet diagnose as I appreciate it could be anything. Knowing nothing about mechanical bits, I'm just curious as to what it may be.

Well, the mechanic looked at it last night and thinks it's a gearbox issue or the DMF. He's to remove it this weekend for a better look.

Is the DMF common to go in the Mk5?
« Last Edit: July 15, 2015, 01:24:37 pm by Lyons »