BMW is being investigated by COMCO, the Swiss competition commission, over allegations that the company may have prevented sales in the European Economic Area (EEA) to Swiss residents.
The EEA includes Iceland, Liechtenstein and Norway.
COMCO spokesman Patrik Ducrey said the maximum fine would be 10% of BMW’s revenue in Switzerland over three years. The investigation was likely to take one to two years, he said.
The commission had information that BMW’s European distribution partners were barred from selling new cars to customers domiciled in Switzerland. BMW has confirmed the investigation.