This tool uses the ISO 8601 date system, derived from the plate’s model year, week, and day, to calculate a result.

VW Build Date Calculator

Model Year — Select — 1971 1972 1973 1974 1975 1976 1977 1978 1979

Model year runs approximately Aug to Aug (e.g. MY1972 = Aug 1971 to Aug 1972)

Calendar Week

Weeks 1-52 (1976 allows up to week 53)

Day of Week — Select — 1 2 3 4 5

1 = Monday | 5 = Friday

Calculate Build Date

Build Date Result

Enter details in the calculator and press Calculate Build Date.

Calculated Build Date

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Model Year

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Calendar Week

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Day

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Calendar Year of Build

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The code formatting varies slightly by era, depending on your car's model year (that is, the August–July production year, known variously as Baujahr (BJ), Build Year, or Model Year, rather than the calendar year).

Please note: Build dates calculated here are based on ISO 8601 calendar weeks and are intended as a guide only. The date shown represents the week and day stamp as found on the vehicle and reflects a point during the assembly process rather than a specific completed build date. Vehicle assembly was a multi-day process spanning several stations on the production line, and the stamped date may not correspond to the day the vehicle was fully completed. Results should therefore be treated as an approximation and verified against other documentation where possible.