From forum member Galps.
"I went on to this web site
https://boschelectronicservice.eu , found that the Bosch 5.3 was listed but not for the 3200 so I emailed them I was dealt with by
timea.zsamboki@hu.bosch.com she was vey helpful, she required the Bosch number printed on the underside of the ECU which is 182636 0 273 004 349
I was offered:
- you can buy a new unit. It costs 679€ + 18,4€ delivery cost + VAT. The delivery term is 1-2 working days after we receive the money. In this case, if you will get the new unit, you have to send back the faulty to us.
- you can repair it. It costs 197,1€ + 36,8€ delivery cost + VAT. The repair term is 1 week after we receive the money
I went for the rework option, basically they email you a UPS returns label for you to send it off. Takes 3 weeks in all. As I said fitted it today and everything is fine and dandy just hope it stays that way fingers crossed."