yes, NA 6 cyl engines are around, Euro models I presume.
The engine would be typ OM603.912 mfg between 86 and 1/89 or OM603.913 mfg 2/89 - 6/93

__________________
'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!