Twingo timing belts change or not???

Hello dear community! I have purchased a Twingo, 1.2, EZ 2/2000 with folding roof, model “LIBERTY” with 85,000 original kilometers. According to my research at the REnault dealer, the tap belt/WAPU/reversing rollers were safely changed in March 2005 at km-stand 43000. The vehicle has now only driven 42000 km since the change of belt and just over 5.5 years. Would you preventively change the timing belt and everything that belongs to it again or could you do that until spring Postpone 2011 or summer? Thank you for your help. Gruss Martin