Early 190D models had 14" wheels, while later ones had 15". They look completely identical. Mine came with 14" but I installed some 15" from a W124. That worked fine since I was increasing the diameter (more internal clearance) and since I bought new 15" tires with the same overall circumference as the old 14" tires.
I read elsewhere that there are multiple almost-identical versions of the 15" wheels used on the 201/124, some of which may not clear the brake calipers on certain models. Below is the quote I am referring to (info. from Marshall Booth on another list).
Quote:
Sergio, One problem is that ET alone will NOT insure that the wheels
clear the calipers. That's a factor that isn't even addressed in the
wheel size designations.
I give as an example the early vs the later 6J15H2 ET49 wheels used on
201 series cars. These had the same size designation (but different
Mercedes part numbers). The early wheels would NOT clear the larger
front calipers used is SOME later ('86 or at least '87+) 201 cars - cars
equipped with the 2.6 M103 engine, the turbo diesel and I THINK some
even later 2.3 M102 engined cars.
The ET (offset) measurements are used to insure that the wheel is
properly centered and works with the steering/suspension geometry. As to
clearance of the other parts of the car (struts, brackets, fenders,
etc.) the only SURE answer is to mount the wheels and see if they clear
everything.
Marshall
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