BMW, OEM, and other published sources
- late-model (3.0 CS & 3.3 CSi) Owner's Handbook
- Zenith INAT 35/40 carburetor references:
- E3 and E9 USA emission control diagrams (from Dan):
- Bosch D-jet and L-jet Manual HTML format or Adobe PDF format
- Autobooks E3/E9 Owners Workshop Manual HTML format
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