W124 Coupe/cabriolet interchangeability

[abogas]

Hi, maybe a daft question but which parts do and which parts don't fit both models. Ie are the doors the same, is the interior the same?

 

[grober]

The majority of parts- "below the waist" will be the similar . The main differences stem from the lack of rigidity of a roof and the increased weight of the convertible due in the main to the underbody re-enforcing and the heavy automatic rear antiroll bar assembly. This means detailed changes to suspension spring and damper rates among other things. Mercedes of that era were incredibly well engineered in great detail and each model had subtle changes to maintain the driving characteristics-- they didn't just "chop the roof off" but subtly re-engineered the whole car where necessary. [ Mercedes have quoted up to 1000 new or redesigned body parts for the cabriolet example] So in reply I would perhaps estimate 65-70% the same . Much of the main running gear will be the same- some of the body parts---- major part of the wiring--- instruments and controls- seating and trim.