BANKAMERICA <BAC> TO SELL GERMAN BANKING UNIT BankAmerica Corp said it agreed to sell <Bankhaus Centrale Credit AG>, its German consumer banking subsidiary, and German credit card operations to <Banco de Santander> of Spain. Terms were not disclosed. The deal is expected to close in the second quarter, the bank holding company said. Bankhaus Centrale Credit, with 31 branches, had total assets of 927 mln marks at year-end 1986. The credit card operation services 115,000 Visa card holders and 35,000 merchants in Germany, it said. Reached later, a BankAmerica spokesman said the company would record a pretax gain of 45 mln dlrs from the transactions. The spokesman declined, however, to disclose the price paid for the operations by Banco de Santander or other terms of the deal.