Hi Recently purchased - Lovely car. All the options and I love it. Only issue - SATNAV using the postcode takes me somewhere within 1-2 miles of the actual location. It tends to say journey complete at least 1/2 mile before actual end and one one occasion was 2 miles out. Has anyone experienced this before? Any ideas how to fix or what might be causing the problem. Thanks. P.S Even my own house is 1/2 mile out?