SIM821 Gearbox Files for Citroen & Peugeot

SIM821 is a Continental/Siemens petrol engine control unit. We currently have 2 SIM821 files in stock, covering 2 different software numbers and 2 hardware numbers. Each one is an original read from a working unit. Vehicles that use this unit here include Citroen and Peugeot. Frequent models: C2 and 207. Available as Gearbox dumps. Always compare the software number on your label with the number in the file title: two units with the same ECU type can still need different software. Missing your version? Request the file with the label numbers and we will source it.