Bodywork
4-door-saloon, torsionally rigid safety cell with shock-absorbing zones in the front and rear, integral roll.over bar, all-aroand body reinforcement, cantilevered bonned hinged at the front with special safety catches.
Drag coefficient - cd-number: 0,44 (0,39 at BMW E28).
Measurements

BMW Standard-Version, © www.e12.de

BMW US-Version, © www.e12.de
The tracks differ from model to model and are depending from the model year. The shown values on top are related to the model year 1978. Here are each values:
after model year 1972:
1406 mm front and 1442 mm rear (BMW 520; BMW 520i)
after 1975:
1406 mm front and 1442 mm rear (BMW 518; BMW 520; BMW 520i)
1406 mm front and 1446 mm rear (BMW 525)
1420 mm front and 1460 mm rear (BMW 528)
after model year 1978:
1422 mm front and 1466 mm rear (BMW 518; BMW 520)
1422 mm front and 1470 mm rear (BMW 525; BMW 528i)
The volume of the trunk is approxemately 620 l, 440 l (VDA-Quarderstandard)
Final drive
| |
518 |
520 |
520i |
525 |
528 |
528i |
after model year 1972
|
4,44 : 1
|
4,1 : 1
|
3,9 : 1
|
3,64 : 1
|
3,64 : 1
|
|
after model year 1978
|
4,44 : 1
|
3,9 : 1
|
|
3,64 : 1
|
|
3,45 : 1
|
after model year 1980
|
4,27 : 1
|
3,9 : 1
|
|
3,64 : 1
|
|
3,45 : 1
|
| |
528i (US) |
530i (US) |
after model year 1975
|
|
3,64 : 1
|
after model year 1977
|
|
3,45 : 1
|
after model year 1979
|
3,45 : 1
|
|
| |
518i JAP |
518i SWE |
|
3,91 : 1
|
4,27 : 1
|