My 1990 H-reg Driver (1.6 petrol) has had an issues with the front doors being sticky and difficult to open.
Some time ago I replaced both the handles and this seemed to improve things, but the issue has started up again, and my mechanic says it's the 35-year-old locking mechanisms, not the handles, that are the problem, and recommends replacement.
I ordered these:
"DOOR LOCK FEBI BILSTEIN 17016 A NEW OE REPLACEMENT
Price: £17.46
Item ID: 276848191418
Order number: 04-12862-49358
Seller: mas-motorstore
DOOR LOCK 17018 FEBI BILSTEIN NEW OE REPLACEMENT
Price: £16.65
Item ID: 176890164583
Order number: 04-12862-49359
Seller: ams-carparts "
Looks like the same German seller, who advised that they are not the right parts (ie front L & R), and is not able to advise what I should get.
Other sources seem to offer parts that are correct for vehicles up to and including 1989, but mine's 1990. It seems strange that it's proving challenging to obtain parts for a less old vehicle but easier for an older vehicle.
Where would you go to get these parts new?