Gear oil filler plug, T6, 6-speed, SAY, 2WD, ???

Hello,

Do I have Pattex glue on my eyes? I can't find an oil filler screw anywhere. Just the bleed screw.

"Where is the oil filler cap? According to the SSP (Service Service Publication), it should be located behind the driveshaft on the passenger side. However, it's not there." Not even at the front, near the starter motor.

Is that the screw in the picture? It's located at the rear of the differential.

Best regards, Rainer.

I was struggling under the car, and it turns out it was actually the filler cap. However, there is no oil that can be felt inside, the screw smells like transmission oil, and it has a sealing ring.

I'm just going to fill it with 1 liter for now, since quite a bit will have been lost due to the leaky shaft seal.

I'm not comfortable filling it up to the bottom of the screw, as it seems the screw is positioned a bit too high for a reliable level check.

Best regards, Rainer.

I signed up with Erwin (siehe Fehlerdatenbank).

It only states that there are gearboxes with and without a filler screw.

Not helpful.

Hello Rainer,

You have a private message.

There are two versions of the 6-speed manual transmission: one with a fill plug and one without.

If you have the version without the fill screw, the reverse gear switch (02T 945 415 P) must be removed to fill the fluid.

The gearbox is filled with 2.7 liters of oil through a hose with a 10mm diameter and a funnel.

Org. Part number G 052 527 A2.


Best regards,

Michael.

Hi Michael,

"Thank you very much!" I just filled it in through the screw at the back of the transmission.

After the leak, I must have lost at least half a liter. On the sealing ring of the splined shaft, there was only a "flatter" spot visible on the outer sealing lip. I may have caused the damage myself while taking it out.

What was noticeable was an O-ring located on the outside of the shaft where the drive shaft connects. This was in two pieces, and it's possible that the loose parts may have affected the sealing function of the rubber lip, although I can't imagine how.

I couldn't find a real reason for the leak. I've now installed the new spline shaft with a new sealing ring. A 10 km test drive showed no oil leaks whatsoever. At least, it doesn't seem to be overfilled, otherwise it would have leaked somewhere.

When I have the time and inclination, I will get a pump for the drain plug on the transmission. Old oil out, new oil in, done.

Thank you for your help!

Wishing you a lovely evening, Rainer.

Quote:

...Guys, I have a problem. We are actively communicating here, but Google and others don't see it, and the page is becoming inactive...

uhm...

Herbert.

Hello Herbert.

Herbert wrote:

Quote: ....Guys, I have a problem. We are actively communicating here, but Google and others don't see it, and the page is becoming inactive... uhm... Herbert

I didn't want to shout my ignorance from the rooftops . At first, I thought it was just the wrong instructions that were sent to me.

However, Elsawin hasn't made me any smarter either; the repair manual that it displays for my VIN is for the 0A5 transmission. That's different.

But first, I thought I was stupid or blind, or both, because I couldn't find the screw.

It's annoying that I also had to replace the rear shock absorbers because the inspection company pointed them out. However, the driving behavior is now exactly the same as before. Old shock absorbers can look perfectly normal, and even when fully extended, sealed, and operated manually, they can still provide very good damping.
Consequently, the old shock absorbers couldn't have been that bad (the tires were also in excellent condition, with no signs of wear), and the guy from the TCS (Swiss Touring Club) was probably just trying to rip me off. It seems like a scam, maybe they get a commission for every "repair".

Best regards, Raier.

Christox wrote:

Hello everyone, After a 15-year break from working on diesel engines, I'm back because I just bought a T6 Multivan with 150 horsepower. Right after the purchase, with only 74,000 km on the clock, I had to fix a leaking left driveshaft (thanks for the perfectly matching technical article, it was very helpful). Strangely, the oil seal was undamaged, and the splined shaft was free of any scratches. Okay, let's get to the point: My SAY 6-speed manual transmission also has that hexagonal screw located at the top. - Is it now known whether this is a filling port? And can the oil level be checked through it? Does the SAY system require draining from the bottom to ensure the correct amount, and then pumping in 2.7 liters? Regards, Chris

Without any guarantee, pour the liquid in from the top, and let it out from the bottom.
I haven't found a way to check the liquid level without having to drain and measure it.

After almost 170,000 km, I'm going to attempt to change the transmission oil.

The following was ordered: 3 liters of CASTROL Transmax manual transmission fluid, 75W-80 synthetic oil, which, according to some reports online, is also said to provide good shifting performance in this transmission.

I'm going to try refilling the transmission with 2.7 liters through the screw on the back, and for testing, I can use filtered, drained transmission oil.

Best regards, Rainer.

Hello,

The transmission fluid change has made me a little more confident about the transmission's lifespan. Reason for the transmission oil change: unclear oil level after a leak from one of the shaft seals, overall condition of the transmission is questionable.

It actually only came out with a lot of dark-colored transmission fluid. After replacement with a 2.7L engine.

Quote:

Model: Manual V Product Line: CASTROL Transmax. Viscosity grade: SAE 75W-80. Manufacturer's recommendations: VW G 052 171. Content [Liter]: 1 Transmission type: for manual transmissions, for transfer cases. Specification: API GL-4+

"The shifting performance in second gear has also improved." The gait has improved enormously; I'd say it's never been better.

Metallic foreign bodies, other than individual, normal flakes, were not detected in the oil.

Best regards, Rainer.