07-01-2023, 01:40 PM
Thoughts on air filters - as only export 7s had them. Odd though it may seem, in post-war years many 7s have covered huge mileages - 100,000 + - and not needed a rebore. In the 1920s, many roads were not sealed and dust did lead to premature wear - so perhaps they should have had them from new? Today many people do fit them in the hope that, at a casual 3000 miles a year, the engine will last for the same 300,000 miles as their VW diesel - i.e. 100 years and still be going strong when their great-great-grandchildren have use of it. So, why bother?