Chelsea's draw at the Nou Camp was enough to secure a final spot but Robben insists that his former club will not lift the trophy against his current employers in Munich on May 19.
Robben said: "It is a dream final for everyone at Bayern Munich.
"I had a great time at Chelsea and I'm really happy they reached the final.
"I saw their semi-final against Barcelona and they did well in a defensive capacity – you could say they parked the bus in their own area. But I have to disappoint them – because they are not going to win it!"