Best Mercedes-Benz 300SD Year to Buy
There is no single best Mercedes-Benz 300SD year: the right one depends on your budget and what you want from the car. Across 63 verified sales, the 1983 is the most affordable at $15,996. The 1980 trades most often (14 verified sales). The 1979 has held its value best, now worth 86% of its original MSRP. No comparable sale since Mar 8, 2026, so the 1983's value may not reflect today's market.
Data: DriveIndex. 3 model years with at least 10 verified sales each, latest sale Aug 24, 2026. Methodology
Ranked across the 3 years with at least 10 verified sales. Years with fewer are in the table below but too thin to rank.
Mercedes-Benz 300SD Value by Model Year
| Year | Value | Vs. original MSRP | Verified sales | For sale |
|---|---|---|---|---|
| 1985 300SD | $20,855No sale since Oct 2024 | 53% | 5 · too few to rank | — |
| 1984 300SD | $22,000No sale since Jul 2025 | 57% | 8 · too few to rank | 1 |
| 1983 300SD | $15,996No comparable sale since Mar 2026 | 43% | 10 | 1 |
| 1982 300SD | $19,657No comparable sale since Aug 2024 | 54% | 6 · too few to rank | 1 |
| 1981 300SD | $13,311No sale since May 2022 | 40% | 3 · too few to rank | — |
| 1980 300SD | $20,284 | 74% | 14 | — |
| 1979 300SD | $20,988 | 86% | 13 | — |
| 1978 300SD | $18,773No sale since Aug 2024 | 77% | 4 · too few to rank | — |
Value is DriveIndex's market value for each year, from verified sales. “Vs. original MSRP” compares it with the sticker price when new, not adjusted for inflation: 100% means it is worth exactly what it cost. Years with fewer than 10 verified sales are listed but not ranked.
Which 300SD year is appreciating?
The table shows what each year is worth. Pro adds the direction: the live Value Signal for every year, how confident it is, a 1–5 year projection, and every sold price behind it. Collector adds the best months to buy and an estimated market-bottom date.
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Best Mercedes-Benz 300SD Year: Frequently Asked Questions
What is the best Mercedes-Benz 300SD year to buy?
There is no single best Mercedes-Benz 300SD year: the right one depends on your budget and what you want from the car. Across 63 verified sales, the 1983 is the most affordable at $15,996. The 1980 trades most often (14 verified sales). The 1979 has held its value best, now worth 86% of its original MSRP. No comparable sale since Mar 8, 2026, so the 1983's value may not reflect today's market. The table on this page lists every model year with its market value, its value against its original MSRP and how many have sold.
Which Mercedes-Benz 300SD year is the cheapest?
The 1983 Mercedes-Benz 300SD is the most affordable year with enough verified sales to compare, valued at $15,996. No comparable sale since Mar 8, 2026, so the 1983's value may not reflect today's market. The most valuable is the 1979, at $20,988.
Which Mercedes-Benz 300SD year holds its value best?
The 1979 Mercedes-Benz 300SD is now worth 86% of its original MSRP of $24,500, the best of the years with enough verified sales to compare. That compares today's value with the sticker price when new, not adjusted for inflation.
How much is a Mercedes-Benz 300SD worth?
Depending on the model year, a Mercedes-Benz 300SD is worth from $15,996 to $20,988 today, based on verified sales. Mileage, condition and options move any single car's price; each year's page shows its recent sales.
Which Mercedes-Benz 300SD year is appreciating?
This page shows what each year is worth and how that compares with its original price. Whether each year is appreciating, stable or depreciating is DriveIndex's Value Signal, which Pro members see for every year along with a 1–5 year projection.