I needed a Bosch EDC 16U1 Engine ECU last week, typed the part No into the KTS for a Bosch aftermarket No & received the message that went something like this - "trade restricted to vehicle manufacturer only"

So although Bosch manufacture it they are contractually obliged to supply only VAG with it.

Had the same issue a couple of years ago with some Valeo headlamp motors fitted to a Cherokee, Jeep waanted £250 each for what amounted to a less sophisticated motor than a Scalextric car would use. A call to Valeo UK revealed they are contractually obliged to retain manufature of these units for Jeep only.

Jon.