Date registered: Oct 2012
Vehicle: 68 250S, 91 300se, 98 SL500, 450SEL 6.9, 14 CLS550 Past MB's; 300SD, 300E, 300TE, 190E, ML420
Mentioned: 12 Post(s)
Quoted: 511 Post(s)
Volume production of the first R107 car, the 350 SL, started in April 1971 alongside the last of the W113 cars; the 350 SLC followed in October. Sales in North America began in 1972, and cars wore the name 350 SL, but had a larger 4.5L V8 (and were renamed 450 SL for model year 1973);
maybe your mech is confused by this.