A good 12 years ago I had this problem with the 85 300D. Took it to a independent shop.
The guy used a small brush and some grease to lube the latch.
After that it closed like butter.

Before I had to slam the door to get it to latch.

You might take a cloth and some gas to wipe out the old gunky grease.
Or if you are ambitious, remove the latch mechanism and wash it out in a pan of gas,
blow it out with some air, then relube it.

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works