The Porsche factory started generating Service Bulletins as early as 1955. These bulletins notified dealers and service shops about problems, new parts and other similar issues.

Prior to 1960, Service Bulletins were all lumped into one category. In 1960, the bulletins were separated into 3 specific categories and one general category.

The general category handled non-mechanical issues and notifications of car thefts.

The specific categories were called Groups and were as follows: These bulletins can be identified by their colored borders: Blue for M, Red for H and Green for F.

From at least 1968 a new Group W was added for special tools. The border for this group was Gray.

M – Motor and Clutch - BLUE

H – Gearbox - RED

F – Chassis, Body and Electrical - GREEN

W – Special Tools - GRAY

Numbering of bulletins was done with a number such as M15/62 which denoted the 15th motor bulletin in 1962. From 1960, each Group was numbered separately.

These bulletins contain a wealth of information about solving problems, timing of parts, and improvements, etc.

Our collection is not complete at this time and many pages are not high quality. If you have missing or better quality ones, we would like to include them. If you can provide high resolution scans or would like us to scan them, please contact Jim Wayman.

1952 - 1959

1960

1961

1962

1963

1964

1965

1966

1967

1968