I had the same problem with in total 4 Scenic E620: always there are 3 bad caps on the mainboard D1844 (look to the mainboard: there should be a bad black cap in the near of the 2 other bad caps). Always the same: changing of the caps doesn't help.
My solution: buy a used mainboard D1844 in the internet, e. g. at ebay. It costs appr. 20 Euro here in Germany.
Before buying another board, please check whether the RAM is still working: sometimes the RAM is also broken.
When you have time, change the caps on the new board: Fujitsu seems to have bought caps for D1844 which are not reliable.
Perhaps someone knows what is broken is addition to the caps - I've 4 boards whichs wants to be repaired