You describe exactly how it is meant to be done - and yes to slide along you need to unclick the first bit a bit if I remember correctly. As for the other trim - same system. On the doors however there is a bolt and a nut - so don't have a go at everything with your claw hammer!

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

It's great having someone on line who knows how to take these cars to bits

I did slide the trim off, but had to unclip about 50% first because there was so much crud restricting movement.

I seem to recall there being some sort of a spring clip that required the front fender trim pieces to slid out rather than just unclipped. But that might have been on one of the other cars. Checked 123 and you can see the plastic rivets on inside of fender. Just pries off just like you said. Found rust on driver side front. Easily fixed, so pleased I took those pieces off. Just a couple more items for the never ending job

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Graham
85 300D,72 350SL, 98 E320, Outback 2.5