General Gearbox code needed for new clutch.

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General Gearbox code needed for new clutch.

Mathijs708

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Aug 18, 2025
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Location
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Good afternoon all,

First of all my apoligies for not specifying this thread, but I figured, since we all have got more to do, I'd combine two posts into one. I'm new here on this forum so I'll introduce myself real quick, I'm Mathijs and I'm 24 years old and have got an '02 Seicento Sporting with around and about 185.000Km on the clock for about 3 months.

I found this forum via Google after investigating on which gearbox code my Sei has got. I think this is relevant, since I found out there seem to be different clutch packs for different gearboxes and since I'm in need of a new clutch (because the lil' booger started acting up a couple weeks back), I think I need to know which gearbox is mounted in the little old Sei. I've been doing some investigating already and I know there are C526 gearboxes and C514 gearboxes and that mine has one of those lifting rings underneeth the shifterknob and a round/bulged cover on the backside of it. This is all I know so far.

I'm sorry for interupting the peace and quiteness on the forum with my Dutch directness so suddenly by immediatly starting to ask all these difficult questions, but I hope I'm being tollerated.

(By the way, the entire problem is that one moment my clutch is unleeshing perfectly fine, but all out of a sudden it doesn't anymore and it seems to be sticking which makes is shift with all sorts of expensive noises (grinding teeth) and I'd like to fix it, before anything else more expensive breaks.)
 
Model
'02 1.1 MPI sporting
Year
2002
Mileage
185000
(By the way, the entire problem is that one moment my clutch is unleeshing perfectly fine, but all out of a sudden it doesn't anymore and it seems to be sticking which makes is shift with all sorts of expensive noises (grinding teeth) and I'd like to fix it, before anything else more expensive breaks.)

Have you thought it might not be the clutch pack, it could be slave or master cylinder acting up :unsure:

Clutch pack problems would normally/generally result in slippage, not universally but still, something to consider.

Whatever it is , I'd change gearbox oil at the end of it because you are literally crunching gears.
 
@ZaphodB Thanks for your reply!

Good you mention this, someone I know asked me if the hydraulics didn't need bleeding, but there's no hydraulics, it's using a bowden cable to pull the clutch free.
 
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