Fitment notes: Battery located under rear seat; requires metric terminals; verify clearance for height
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Every control module on the 1968-1979 Volkswagen Bus — where it lives, replacement time, and what it takes to program a replacement.
Bosch D-Jetronic Control Unit (D-Jet ECU)1.2 hr R&Rno coding
📍 Under driver seat or behind dashboard (1972-1974 Type 4 fuel-injected engines only)
⚠️ Analog electronic fuel injection control unit with no software, memory, or diagnostic capability. Not programmable. Adjust mechanically via potentiometers and air-fuel mixture screws. Rare on US-market Bus; most used carburetors.
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 1975 Volkswagen Bus 1.8L Air-Cooled Flat-4 (1795cc Type 4, Bosch L-Jetronic fuel injection, ~67 hp) and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years.