It would be pretty damn absurd to get your warranty voided for putting some vinyl on your car. I don't think that will cause any problems at all. Any reason why you're covering the BMW logos?
Current mods: BMS JB4 | BMS DCI | ETS intercooler | ETS charge pipe | HKS SSQV III | CP-E downpipes | CP-E exhaust | BMWP suspension | P3Cars vent gauge | LUX V3 angel eyes | Blackline LCI taillights | Slek Designs front lip | BMWP grills | BMWP spoiler | iCarbon rear diffuser
Coming soon: Work Brombachers - FLOSS edition