Clutch double "cocking" noise after gear changes

Kraken

Active Member
May 31, 2016
125
3
UK
I am getting what can only be described as a double cocking noise when changing gear and letting off the clutch. Basically, what i mean is, there is a "chick, chick" sound coming from the clutch when i shift up (rarely down) at low/medium revs, which is much more prevelant on a quick gear change, but also happens, sometimes just a single "chick" sounds, slower.

It sounds like someone is cocking a very small chamber of a gun lol, and what this turns into is the feel of the clutch being very "grabby" or "bitey" so you change gear, let off the clutch then there will be this very brief "grab" feeling followed by the clutch making this "chick chick" sound.

I have a stage 1 remap now which I think may be making it happen more offen when going slower, it only really seems to like solid/proper shifting OVER about 3-3500rpm. It just feels at lower revs the clutch is being very grabby, and in turn, is making these clicky noises and grabbyness and low rpms when shifting quicker, or sometimes more drawn out say in traffic.

It just feels like the clutch engagement is quite strong, it's not so much that the whole car jerks or judders, now way, it's just the sounds of the shifts up, the grabbyness despite smooth shifts and the fact it doesn't do it at higher RPMs

It seems to be when the revs drop to such an extent between the 1200 to 2800 mark, this is when it will be most prevelent with the double "chick" cocking sound and the slight grabby/tiny jerkyness.

And ideas what this could be? It has done it (and does do it) stock as well to be fair as i returned the car to stock with my Bluefin and yeah, it's basically just making me want to drive it a bit less economically and perhaps more aggresively lol which is fine most of the time but not always round town. I'm at 11000 ish miles now I doubt anything could be wearing out especially when my service went all perfectly clear last month.
 

opher50

Active Member
Dec 16, 2016
36
0
I may relate.
Having the much slower 1.2 tsi and the clutch definetly makes the noises you describe. As a matter of fact just today I realized that the car does tend to switch gears more smoothly beyond 3k rpm my self.. Makes me wonder.
Anyway, I do hear these sounds also coming from Leon's, and a like, with dual clutch systems so no idea of what could cause it.
 

ray

Active Member
Jan 7, 2016
591
190
Hard to describe the sounds but is it possibly synchro related? Just with you saying it happens at certain rpms.. seems awfly early for any gearbox issues to arise.

Is it still in warranty? Would absolutely be getting that checked especially if it isn't getting any better.


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Kraken

Active Member
May 31, 2016
125
3
UK
I mentioned it at service, mentioned about the gear linkages too about how sometimes it crunches/grinds into reverse when starting up (hot or cold) or when it sometimes, when coming to a halt from speed, putting into 1st gear ready to go again also causes a light crunch too, my foot ofc is all the way down in each of these circumstances of course.

At speed, perfect. Spirited driving is no problem, A road, DC-way, Motorway etc fine as i have the length the wind the gears out.

What I'll do is record the sound sometimes today or tomorrow and you can hear exactly what it's like at low RPM, high RPM and when rev matching, rev matching down ofc there is no issue.

What i have noticed, is this car has always "rev hung" at below 2750 RPM which i think is an economy feature build into the car? It's not huge hang, but it does linger around at the rpms for about a 3/4 of a second but not at all over 3000rpm or sometimes just below...strange.

I thought at first it was throttle linearity issue with sport mode/normal mode but it does it in ECO as well, perhaps a little bit less.

Oh yeah got 2 more years, it's from new only had it a year :). Love it 95% of the time but these little niggles can be a pain some days.
 
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Kraken

Active Member
May 31, 2016
125
3
UK
I'm really having trouble picking the sound up on my phone, think i'll need to use my proper microphone and have it fastened under the passenger footwell or better yet, just besides the open window.

It happens SO MUCH MORE when it's hot, but less when in Eco throttle mode (which makes sense in a way) but the fact it's making the audible, and physical feeling "chic!" // grabbing // biting sound that is A) so audible and B) sometimes consists of two double "chics" and C) seemingly, at low speeds, could make the car a bit jerky.

I mean, I went down to Unit 20 about a month ago and although they didn't drive it...it certainly makes a loud gear engagement sound which they deemed all cars on this platform do as they had the skoda parts engineer in to take a listen and he said all VAG / MQB platform cars have the same solid direct shifts and noise, which is fine by me from an audio point of view...but not from a PHYSICAL point of view.

Service didn't deem anything wrong the clutch or transmission either so I may have to go back to Unit 20 and go on a drive with them to make them hear it.

Unless i get a better audio reciever to pick the audio up, I'll keep this thread updated.
 

ray

Active Member
Jan 7, 2016
591
190
If it's getting worse just don't take no for an answer as it sounds like there must be something that's not working as it should.

Thanks for keeping us updated though, it's looking like my next car will be the cupra and I'm very undecided on the DSG so this stuff definitely helps me and I'm sure others.




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Kraken

Active Member
May 31, 2016
125
3
UK
If it's getting worse just don't take no for an answer as it sounds like there must be something that's not working as it should.

Thanks for keeping us updated though, it's looking like my next car will be the cupra and I'm very undecided on the DSG so this stuff definitely helps me and I'm sure others.




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You see, this is the thing. I'm not 100% sure it is a problem haha. Like, I think it's just a quirk as when you're on it it truly is faultless. I think perhaps this is just kinda how more powerful cars are. I've never driven anything near 180hp before let alone 238 now!

Ahh well, in my honest opinion nothing beats that sheer driving connection of a proper manual transmission. I'd never have a DSG or any automatic. I love changing gear with my hands and a gear stick and I love a good clutch lol. Plus of course modification options are wider since you don't have to worry about DSG transmission torque limitations and tighter RPM curve.

Anyway I digress! I love everything about this car and perhaps I am just being overly paranoid about sounds and the fact the clutch is much sportier and bitey than a normal hatch.

I'll keep an eye on it, will swing it by the the great guys at Unit 20 later this week again (love how local to me they are) and get them to ride with me and see what's what :).
 
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ray

Active Member
Jan 7, 2016
591
190
You see, this is the thing. I'm not 100% sure it is a problem haha. Like, I think it's just a quirk as when you're on it it truly is faultless. I think perhaps this is just kinda how more powerful cars are. I've never driven anything near 180hp before let alone 238 now!

Ahh well, in my honest opinion nothing beats that sheer driving connection of a proper manual transmission. I'd never have a DSG or any automatic. I love changing gear with my hands and a gear stick and I love a good clutch lol. Plus of course modification options are wider since you don't have to worry about DSG transmission torque limitations and tighter RPM curve.

Anyway I digress! I love everything about this car and perhaps I am just being overly paranoid about sounds and the fact the clutch is much sportier and bitey than a normal hatch.

I'll keep an eye on it, will swing it by the the great guys at Unit 20 later this week again (love how local to me they are) and get them to ride with me and see what's what :).



Sorry mate I've commented on two threads to do with a weird gearbox issue, the other one is a DSG box hence why I spoke about it.

I had an s3 and cupra (old style) and both were around 270bhp and never had any clunking.

It's definitely sounds synchro related though, but tough to diagnose on here. Good luck


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Lentäjä

Full Member
Jan 19, 2006
503
2
Helsinki, Finland
What about DMF making that noise when worn/torn?
I dont have any noise on mine...i only hate the feel when doing quick shifts and problem is that freakin clutch delay valve,
that i am about to remove (have been on my to do list over a year now...)

And if i am on Sport mode and floor it on 6th gear from 100kmh -> clutch starts to slip a bit
 
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Kraken

Active Member
May 31, 2016
125
3
UK
After only a year?! Surely not. If I'm being 100% honest from month 1 of having the car I've heard the sound kinda when I've made a crappy shift or shifted to low down or too quickly but...surely during the service they'd of picked that up especially when I mentioned about it, although not specifically the flywheel...hmm.

These sort of things are so hard to tell. Will really try to get the sound recorded ASAP.

Never had clutch slip, yet anyway! Will have to test.

Actually yes I must admit, if that's what my earlier thread about the crunch between 2nd and 3rd is the delay valve thing that's super annoying. Although...I've not had it happen in quite a while probably because of the the massive shove of torque the remap has given lol. Lemme know how you get on with the removal on the future though :) why do modern cars have them again? I assume to stop noob drivers knackering the transmission by not depressing the clutch properly or selecting a wrong gear.
 
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Kraken

Active Member
May 31, 2016
125
3
UK
Ok...this is the best I could do with my camera audio, i've tried to boost the treble a bit, but here is the sound:

https://clyp.it/hv4s11ia

It's at the 4 second ish mark, shortly followed by me mimicing the sound of the "chic chic" by...well making the sound LOL.

Not sure how clear it will be on your guys audio systems but i'd say head/earphones suggested.

The faint sound you here, in reality, is ofc louder than what is recorded by say maybe 2x, i've tried boosting the DB limit of the clip but it then starts to sound too bassy, too trebly so the sound is muted or worse, ****.

REALLY need to get my mic up and running and converted to the PC but now sure how clear the sound will be, i'll set it up in a few hours and try to record another clip later today, it's just a case of whether or not i have all the wires for it xD.
 
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Lentäjä

Full Member
Jan 19, 2006
503
2
Helsinki, Finland
Clutch delay valve is there for making the shift smoother for average Joes average driving...
But when hammering down it just makes the shifting slow.

Maybe you are not slipping due to having 70nm / 80bhp short of mine.
 

Kraken

Active Member
May 31, 2016
125
3
UK
Fair point! Have you not looked into a clutch upgrade to help with the slip? I wouldn't know where to start nor would I know how much to spend let alone whether it's just the clutch that would need an upgrade.

I know its a crap sound quality but what do you reckon it could be from hearing the sound?

Dropping it in with the specialists tomorrow to go with a drive along, the fact it's now doing it with anything but driving like a damn granny or a bloody nutter is starting to grind my gears a bit...almost literally!

As for the CDV, ah yeah that's it. Interesting...will be on my list for when I get more pennies to dedicate to mods lol.
 
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Lentäjä

Full Member
Jan 19, 2006
503
2
Helsinki, Finland
That sounded more like a blow off valve to me:shrug:
So no idea, hope you get that sorted.

As for clutch...have not find any good alternative to stock...last time i looked, no SRE from Sachs.:cry:
 

Kraken

Active Member
May 31, 2016
125
3
UK
That sounded more like a blow off valve to me:shrug:
So no idea, hope you get that sorted.

As for clutch...have not find any good alternative to stock...last time i looked, no SRE from Sachs.:cry:

Haha absolutely not, definitely coming from the clutch lol. I've got something booked for tomorrow so i'll be doing that...they agree that it doesn't quite sound right. The thing is i don't wanna be under pressure when test driving it and make a **** up haha, plus, **** weather is forecast as well so i don't want it raining when i am trying to prove the existence of a sound related issue! Lol.

Oh right, I find that mad with such a huge platform of parts you haven't found something decent yet! I hear sometimes, the offbrand stuff could be worth a punt.

Anyway, will update tomorrow evening now, just hope that if it is a problem i can get it straight to SEAT to fix directly, even though honestly, I trust the Unit20 guys specialist input a lot more tbh and kinda wish they could do any repairs under my original warranty. WE SHALL SEE! Until tomorrow.
 
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