Can't change gears on corsa d

Bear1973

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First time poster guys hopefully someone can assist. I have a 2009 corsa d with hydraulic clutch. For last month I have been having issues with my clutch after having it replaced. Car drives fine for a week and I can get gears but after a while I can't select any gears. It's usually followed by oil leak in engine bay. Only get gears when engine off. However after pumping the clutch I can select gears when car idling. Have replaced master cylinder twice and slave cylinder twice. Bled system thoroughly to ensure there is no air in system. Like I said after pumping clutch I can select gears but there is always a leak in engine bay. Pedal is ok and returns. Break fluid reservoir stays full. Had car at 3 mechanics already. Same problem every time. Any assistance is welcome.
 
I don't know much about hydraulic clutch system, but the fact that when you pump the clutch you can select gears indicate that there is a leak somewhere in the system, The oil that's leaking, is it engine oil or hydraulic oil?
 
You replaced the clutch. Did they install the correct clutch for your car?

Take it back to the first mechanic. 3 mechanics in one month, no wonder they can't figure out the problem. :whistle:
 
@the champ as far as I can gather it is hydraulic fluid as it has a very clean smell. As for the clutch kit, I purchased it myself to avoid being ripped off. I bought the Valeo clutch kit as I have used it in my other vehicles before. The first mechanic I took it to gave me the old clutch back and because he has been working on my car exclusively for the last 2 years without any issues I trust that the clutch was installed correctly.
@stokpert thanks for referral will contact Rouxy..
Thanks for the advice guys
 
Identify where the leak is, sounds like a clamp wasn't replaced on a hose when clutch initially replaced.
 
@the champ as far as I can gather it is hydraulic fluid as it has a very clean smell. As for the clutch kit, I purchased it myself to avoid being ripped off. I bought the Valeo clutch kit as I have used it in my other vehicles before. The first mechanic I took it to gave me the old clutch back and because he has been working on my car exclusively for the last 2 years without any issues I trust that the clutch was installed correctly.
@stokpert thanks for referral will contact Rouxy..
Thanks for the advice guys

So if you trust him why the other two mechanics ?

Also what relevance is the brake fluid reservoir?
 
You have already diagnosed the problem... You need to track down the source of the leak and fix it.
 
It's what makes such a clutch system work, no brake fluid in the reservoir, your brakes as well as your clutch won't work properly.

I know how hydraulic systems work but I'm pretty sure it would be using two separate reservoirs and systems.

Hydraulic clutch fluid is also different from brake fluid so for that reason alone it would be different. (At least on bikes anyway).

But I stand to be corrected.

****

Quick Google says it is indeed shared. That's crazy.
 
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I know how hydraulic systems work but I'm pretty sure it would be using two separate reservoirs and systems.

Hydraulic clutch fluid is also different from brake fluid so for that reason alone it would be different. (At least on bikes anyway).

But I stand to be corrected.

****

Quick Google says it is indeed shared. That's crazy.

Yes and it is the brake fluid that is being compressed when you push the clutch pedal, ( in my experience, of course), even if you look inside the engine bay of any car that uses such a system and trace the lines from the brake fluid reservoir you will see that besides going to the wheels some lines goes to the gearbox.
 
Replacing the master cylinders was unnecessary If that's the problem you can just replace the seals/rubbers.

Find the leak thats were the system loses pressure and why it doesn't work properly.
 
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Yes and it is the brake fluid that is being compressed when you push the clutch pedal, ( in my experience, of course), even if you look inside the engine bay of any car that uses such a system and trace the lines from the brake fluid reservoir you will see that besides going to the wheels some lines goes to the gearbox.

I've just never had or worked on a car with the setup so wasn't aware.

Previous cars had cable clutches and now the DSG of course has internal clutch.

Bikes either had cable or separate hydraulic.

My question would be don't you lose brake pressure of the clutch and brakes operate at the same time?

Reading up on the Golf V quickly it almost sounds like although the reservoir is shared its split in half and sort of two separate systems in that way but I'm not sure if I understood that correctly.
 
Thanks for feedback guys..really appreciate input...taking my car back to mechanic.Will keep you guys posted
 
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