Just watched it on DemandFive
" The W124 ...... popularly believed to be the most over-engineered car - EVER "
ERM ...... NO .
There are many examples of things that were made cheaper and lighter on the W124 compared just to the preceeding W123 , before we even consider other models .
Don't get me wrong , the W124 is still a very well engineered car ( I have had two ) but the above statement is well wide of the mark considering many other products from the same maker . W123's had their faults as well , but they were certainly a more solidly engineered car than the 124 .
Window regulators : I went through three on my 300TE during the seven years and 100K I ran it for , failure of them is very common and the reason why is evident when you examine them - the geared quadrant is a cheap casting made of putty-metal . Compare that to a W123 and you will see a solidly engineered mechanism , failure of which is practically unheard of .
Indicator lenses : on the W124 held in by a flimsy plastic clip which sometimes breaks ; on the W123 still a plastic extension of the lens , but held in by a brass bolt and knurled knob .
Even looking at some of the cabin fittings - the air vents on a 124 are made of plastic ; look at an S Class ( 116 or 126 ) and the vents look very similar - only these ones are made of metal , painted black with a chrome effect detail round the edges .
Just shut the doors on a 123 and you will feel the difference in solidity between that and a 124 , then again try shutting doors on a W116 S Class or a R107 and you will come closer to the feeling of shutting the door on Fort Knox .
The programme also made much of the panoramic wiper and the percentage of the glass it cleared - however , the earlier 'clap hands' wipers used on all models during the 1960's came very close without the mechanical complexity ( and unreliability ) . One principle of good engineering that should not be ignored is that if there is a simple way of doing something , it is preferable to a more complex way , all other things being equal - a good example of this being the manually adjustable drivers door mirror rather than having it electric like the passenger one .
Of course , probably THE most over engineered car of all time would be the W100 , or the 600 as it was more popularly known . The quality of construction , the advanced technology and the levels of refinement set it a world apart from every other car of its time , AND it could probably still show a lot of current cars a thing or two .