C. EPROM Replacement For M50 (Vanos) and M42

CAUTION
Whenever connecting or disconnecting any control module the IGNITION MUST BE SWITCHED OFF!





1. Lay the control module on a static mat and carefully bend up the 6 tabs.





2. Remove the cover from the control module.





3. Remove the protective cap on the EPROM by inserting a small screwdriver into one of the slots on the side of the cap.





4. Remove EPROM by using extractor tool and carefully pulling out of its socket.





5. Reinstall new EPROM, making certain that:

^ All pins are straight.

^ The notch in the EPROM and the notch in the socket are aligned.

^ All pins have been inserted into the socket correctly and completely.

6. Reassemble control unit by:

^ Reinstalling EPROM cap.

^ Carefully reinstall cover, making certain that none of the tabs on the cover come in contact with any of the pins on the PC board.

^ Carefully bend the tabs down.