End cap

simes2024

Member
Hey does anyone know what this 'end cap' does - part number 02T301252A ?
It's a bit leaky on my gearbox underside but does not appear to be part of the drain system. I've been trawling online articles but can find nothing about it other than 'end cap'. Cheers guys

A2.JPG
 

VAG fool

Member
It closes off the casting void where the gearchange selector unit plugs into the gearbox from above.
On most gearbox variants it has a VW roundel cast into it, 1.4 petrol boxes have a rectangular plain cover.

PS I only know this thanks to recent gearbox type investigations!
 

simes2024

Member
Hiya. Thanks. Yes I saw the VW print on a youtube video. Mine is the rectangular plain type, though I have 1.6 fsi. Perhaps I have a refitted gearbox.
In your investigations did you see a reason why it might drip a bit of oil - not wishing to sound dim but is the selector unit you mention lubricated under any pressure, for example? I can't see if there is a gasket to seal it; there does not seem to be one in the diagram. Also if I unscrewed it to investigate, is it likely that transmission oil will coming p*ssing out lol? Cheers
 

Catnip64

Member
There's gearbox oil on the other side, so don't take it off without draining the box first!
There's no gasket, instead it will use sealing paste between the cover and the gearbox casing.
Are you sure the cover is leaking? It's the lowest point so check the surroundings first, cleaning dirt as necessary to check that the leak is not higher up.
 

simes2024

Member
There's gearbox oil on the other side, so don't take it off without draining the box first!
There's no gasket, instead it will use sealing paste between the cover and the gearbox casing.
Are you sure the cover is leaking? It's the lowest point so check the surroundings first, cleaning dirt as necessary to check that the leak is not higher up.
Thanks for the help. To be honest I'm not 100% the leak was from there but the oil presence was all around the casing, so it was my first thought but only after cursory investigation. After wiping away and not moving the car it drips no more, so looks likely only happening after driving. I will drive the car a few miles and have another look. Cheers
 

Skipton01

Admin Team
I think you'll find the leak could well be from the output shaft area of the box - the seeping will then travel down to the cover area as it's the lowest point and will gather there.

I had issues on Tank similar to this and it was the nearside (UK) output seal that was at fault.
 

simes2024

Member
I think you'll find the leak could well be from the output shaft area of the box - the seeping will then travel down to the cover area as it's the lowest point and will gather there.

I had issues on Tank similar to this and it was the nearside (UK) output seal that was at fault.
Thanks for the advice. I'll have a thorough look. Perhaps more serious than I'd hoped but hey on the bright side, I was intending to change the gearbox oil anyway :)
 

A2-Dork

Member
yes its more likely to be the drive shaft oil seal , the right hand side one is a common fault to fail
pig of a job , but we have done a few now and made special tools to do this
 

simes2024

Member
yes its more likely to be the drive shaft oil seal , the right hand side one is a common fault to fail
pig of a job , but we have done a few now and made special tools to do this
Oh that does sound a bummer. I could do without another 'pig of a job' - oddly enough one of the last jobs Tony did on my TDi was a driveshaft overhaul....I sold the car about 6 months later :rolleyes: - did about 10 miles last night to get some dog food, this morning not a drip or drop of oil under the car. More investigation required it seems
 
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