Coolant drain cock A6 4F

Hello,

Is there a trick to getting a toilet to seal properly again after it's been used for something other than its intended purpose?
It appears that it can be "assembled" into 2 positions (rotated 180°), and one of those positions seems to be tight now.
I'm not entirely sure about this, and I'm concerned that I might have to drive around for a while without the underbody protection and then have to come back again to get it installed.

Can you use a bit more force to separate the valve body in order to replace the O-rings or similar components? I didn't want to force it apart. Is there a trick to using that part, or is it better to just not use it at all?

Best regards, Rainer.

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I didn't want to force it or pull on it roughly. Is there a trick to using that part, or is it better just not to use it at all?

For future generations: No, why would you need it, when the sleeve just 1 cm further forward already has a functional quick-release coupling? If these valves cannot be loosened by hand, it's best to leave them alone.

It looks like a pair of pliers was involved. If that's the case, anything is possible...

I would observe it for now --> it's leaking --> replace it. And be careful ---> without the lower engine cover, you will damage the wheel arches if the vehicle is driven -- secure it properly.

I also find it baffling why they install such pointless devices that seem to be only usable until the warranty expires, if at all.

Thank you for the tip. I didn't see the quick connector, and I was under the mistaken impression that it would bubble nicely into the bucket placed underneath.

Is the quick-release coupling designed in the same way as the intercooler hoses? Can you access the release mechanism with a screwdriver from the direction where the hose is connected?

Best regards, Rainer.

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I didn't see the quick connector, and I mistakenly thought that it would bubble nicely from the faucet into the bucket below. icon_evil.gif

I, too, have fallen for that misconception and have paid the price. One has to get used to the mess first, which isn't easy for a technician.

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Is the quick connector designed in the same way as the air intake hoses?

In principle, yes. The radiator cap has a cylindrical front section (for the O-ring), followed by a conical section with a groove for the clamp, so that it simply snaps into place during assembly.
I'm not 1000% sure, but it looks like the clip or clamp in your photo is already visible . Whether it can be removed without further disassembly --> check it out.

The spare part is only available in conjunction with the hose, if I'm estimating correctly. Vehicle data would have been helpful, as always .

"Edit: If you're thinking about replacing that part, please handle it with extreme care. If anything seems stuck, be very careful, otherwise you might have to replace the cooler as well." It's not really worth much more than the supposed drain valve. WD40 or something similar works wonders.

Hello,

The situation is gradually improving. You can only see the clip for detaching the connector from above. Simply pull it upwards. The sleeve comes off easily, just a little wiggling is needed.

If you can now see inside the spout, you can easily remove and pull out the stopper. In this case, the culprit becomes visible: an O-ring with two pressure points (marked with red dots).

Best regards, Rainer.

New R-10 sealing ring (11.8mm x 2.65mm) and some grease, and then the job was done and it was sealed.

I've also found the adapter to be quite convenient so far, especially when you attach a short hose to it that then leads into a canister. This allows you to collect the cooling water without any contaminants, so it can be reused.

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So far, I've also found the boot to be quite comfortable, especially when you attach a short hose to it that then leads into a canister. In this way, you have a chance to collect the coolant without any dirt, for reuse.

As long as the valve can be opened manually and everything remains intact, that's okay. But as soon as something breaks down, things become uncomfortable, especially when time is of the essence and suitable spare parts are not readily available.