Is my clutch done?

[anderswhk]

In the past month, i have noticed that sometimes when i switch gear from from 1 to 2, and from 4 to 3, i can hear a slight knock when i let go of the clutch. There is no obvious negative impact on performance, but this has me a little worried. I bought this car without service book, so i dont know if the clutch or gearbox has ever been switched. I dont think so. It has 130.000 km on the clock.

Also, i had the car remapped and dynoed, and it now has 207hp, 310nm and peaks at 1.5 BAR of boost, then settles at 1.2 after a few seconds (According to the boost gauge). Can the stock car handle this?

Its an A3 1.8T AUM

[Weehe]

Can you feel the clutch slipping when switching gears? I am not sure about the knock sound, but if you go WOT right when you enter a gear and the rpms increase fast but your tires aren't spinning and you aren't moving, then your clutch is on its way out. I am running a stock clutch on a K04 and it is fine. However, when I got the initial tune it finished off the original clutch pretty fast ( it had 120k miles on it though).

[18T_BT]

Go under your hood and check your motor mounts

[PoorMansDub]

I vote for motormts, especially the dogbone. Also check the CV joints.

[Slimjimmn]

sounds like mounts or dual mass flywheel

[anderswhk]

No, it doesnt slip. The only problem is the gearbox and clutch makes more noise than usual when i switch gears and step on the clutch.

[PoorMansDub]

Does the clutch pedal feel strange or just the noise?

Put it in low gear and just press the gas and let off. Do that a few times in a row. If you do this correctly, you will be able to re create the sound, thus implicating your motormounts and still possibly inboard CV joint.

[anderswhk]

Does the clutch pedal feel strange or just the noise?

Put it in low gear and just press the gas and let off. Do that a few times in a row. If you do this correctly, you will be able to re create the sound, thus implicating your motormounts and still possibly inboard CV joint.

I did that, and doing this with the gas does nothing, but i figured out i can force the sound by driving in second gear slowly and and pushing the clutch down, and when i release it does produce the sound, which is like a clicking sound. When im just pushing the clutch in and out it does the sound every time unless i do it really fast. When im actually switching gear the sound gets a louder, but seems to only be when the second gear is involved.

[anderswhk]

bump

[Slimjimmn]

Try bleeding the clutch slave. Open the brake fluid resivour and top it off and then crack the bleeder screw on the slave on the trans and let the fluid drain for a bit. Your slave may be sticking, but I still think a dmf issue