300 SL, Roadster - R 129 - Mercedes-Benz 300 SL, 129 series. The entry-level straight-six engine M 103 has already proven its qualities in the 124 and 126 series saloons. Here, a revised version appears. Among the most important improvements are a redesigned combustion chamber which reduces the raw emissions of unburned hydrocarbons and a modified exhaust gas purification system
- Archive number: 89F49
- Caption: Mercedes-Benz 300 SL, 129 series. The entry-level straight-six engine M 103 has already proven its qualities in the 124 and 126 series saloons. Here, a revised version appears. Among the most important improvements are a redesigned combustion chamber which reduces the raw emissions of unburned hydrocarbons and a modified exhaust gas purification system
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