Unique approval number for each BM part number. SEAT IBIZA Mk IV (6J5, 6P1) 1.6 LPG Hatchback Petrol/Liquified Petroleum Gas (LPG) 05/2011 05/2014 FWD 16 81 60. SEAT IBIZA Mk IV SC (6J1, 6P5) 1.6 LPG Hatchback Petrol/Liquified Petroleum Gas (LPG) 05/2011 05/2014 FWD 16 81 60.