my car behaveed the same way.after being stubborn and jumping for months the battery was changed and all problems went away.by the time i got rid of it the fluid was real low in some cells-then it becomes dangerous

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'95 s500 (bought for wife but can't bear to share!!!) 125kms
'92 legend 180kms
'88 tbirdturbo(fantastic car-only regular maint.)120kms
'87 mustang gt(gone)
'86 tbirdturbo(gone)
'85 mustang gt(gone-but not forgotten)