308 gearbox leak.

Joecolew007 · Unread post by **Joecolew007** » 14 Jan 2026, 22:06

Hi all. I have a leak from the silicone seal between the item no2 in the picture and the main gear housing, my question is can part no2 circled red be safely removed and with everything eles on the car, obviously oil drained out first, it looks like its just a cover bit like a sump on its side. But cant risk a gearbox problem for the sake of repairing a small leak.. its a 1.6hdi engine in a 2012 308. Any help be appreciated. Cheers.

Unread post by **mickthemaverick** » 15 Jan 2026, 10:46

I don't know if you will get a definite answer from a member on this one but it might be worth addressing your question to a gearbox refurb company like the one in the link below:

https://www.reconditioned-gearbox.co.uk ... gearboxes/

Gibbo2286 · Unread post by **Gibbo2286** » 15 Jan 2026, 11:34

It is just a cover, ok to remove and reseal, if there's room.

Unread post by **RichardW** » 15 Jan 2026, 11:42

Yes, you can remove this - it covers up the 5th gear components, which can also be removed with the box in situ.

Unread post by **xantia_v6** » 15 Jan 2026, 18:49

If that cover is rusty, the leak could be due to a pinhole.

Joecolew007 · Unread post by **Joecolew007** » 15 Jan 2026, 22:18

Thats for the information on that... much appreciated. Will look at that in due corse.. cheers.

French Car Forum

308 gearbox leak.

308 gearbox leak.

Re: 308 gearbox leak.

Re: 308 gearbox leak.

Re: 308 gearbox leak.

Re: 308 gearbox leak.

Re: 308 gearbox leak.