Your C1 will start to drop in terms of performance and will eventually simply not start. 4 diesel, no power steering just bottom pulley and alternator and tensioner with no adjuster bolt? MAINTENANCE AND WARRANTY GUIDE 115A_CCE0030_Anglais-SPE. Timing belt: the timing belt kit of your CITROEN C1 2 1. P1249 Waste gate control valve performance. Citroen c1 alternator problems Citroen C1 (2007) – fuse box diagram.