BMW ECU - 1429542C Fits the following-

1996 - 1999 BMW 328i 4DR (E36) 1 429 542 C / Siemans 5WK9 035 MS41.1
1996 - 1999 BMW 328i CONV (E36) 1 429 542 C / Siemans 5WK9 035 MS41.1
1996 - 1999 BMW 328is 2DR (E36) 1 429 542 C / Siemans 5WK9 035 MS41.1
1997 - 1998 BMW Z3 2.8 Roadster (E36) 1 429 542 C / Siemans 5WK9 035 MS41.1
1996 - 1998 BMW 528i 4DR (E39) 1 429 542 C / Siemans 5WK9 035 MS41.1
1996 - 1998 BMW 528i Wagon (E39) 1 429 542 C / Siemans 5WK9 035 MS41.1
1996 - 1998 BMW 323i 4DR (E36) 1 429 542 C / Siemans 5WK9 035 MS41.1
1996 - 1998 BMW 323i CONV (E36) 1 429 542 C / Siemans 5WK9 035 MS41.1
1996 - 1998 BMW 323is 2DR (E36) 1 429 542 C / Siemans 5WK9 035 MS41.1

  Note, this unit may need to be programed at an authorized service center before it will start.

A defective ecu is one of the most common no start or random stalling problems with these Motronic ECU controlled cars. If yours does not have this problem, keep an extra ECU in the trunk, you might some day be glad you did... These units now have to be special ordered from most dealers new for big $$ (often times over $1000!), and finding a good one second hand is getting to be a very hard chore.