Hello, everybody. This is my first post asking for tech info. Let me grate you in advance!

I was wondering if the rear seat belts kit (2 3-point-belts+ 1 2-point belt) of a MB W123 sedan will fit a 1979 w123 coupe...

Do the coupe have an specific/different rear seat belt kit?

Thank you, experts, for your help!

Welcome to the forum carbayon

I think you'll find that the problem that you have is the year your coupe was made rather than it not being a sedan.

I can post pictures of the fixing points for a 1980 W123 sedan if you need them but in the mean time I'd wait for input from a coupe owner...

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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!

For the authoritative source on what parts will fit where, I'd suggest enrolling or subscribing to EPC Startek. It's M-B's official Electronic Parts Catalog. If you're not in the US, there may be a fee.

If that's not your style, the tech help here is usually pretty good.

Having owned and sold a coupe, I'd be surprised if the belts from a sedan were a direct match. Some of the hardware like the buckles may work, but I'd be skeptical of a direct bolt-in.

Panzzer seems to be a source of coupe parts, so he may have a set of serviceable coupe belts. Look for his thread in the Parts forum.

Thank you for your answers.