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nissan primera 1.8 petrol 05 - loss of memory on radio - broomfield12

I turned off my sat nav whilst engine was off When i tured sat nav back on the radio has lost the restore to new stations. Also after a long run battery reads 12.7 but after 1 hour this is down to 12.2 Ihave checked removing all fuses but cannot find discharge. I gather american cars do this

nissan primera 1.8 petrol 05 - loss of memory on radio - Peter.N.

Sounds as though you have an alternator problem, with the engine running it should read about 14.4 volts.