[sailr69]

new here, I am sure this has been talked to death already, however, just need to be pointed in the right direction. Three weeks ago my 2007 335i would not crank, I replaced the starter relay and it started just fine, now, it will not crank again, I again replaced the relay but nothing, battery is charged relay is clicking but no answer, anybody??

[relative4]

Check main grounds, pull & test starter.

[gbalthrop]

Originally Posted by sailr69

...2007 335i would not crank, I replaced the starter relay and it started just fine, now, it will not crank again, I again replaced the relay but nothing, battery is charged relay is clicking but no answer, anybody??

Please describe the part# & location of the part which you replaced which you are referring to as the "starter relay." Here is a circuit diagram for late 2007 (>3/1/2007 build) 335i E92, and as you can see, the CAS Module provides the voltage to the Starter Solenoid (M6510 Starter Motor in Schematic), without ANY external relay:
https://www.newtis.info/tisv2/a/en/e...system/uNYjfvY

QUESTIONS:
1) Did you have ANY Fault Code or warning light on either occasion of "No Crank"?
1a) What Scan Tool or Software was used or do you have available to read Fault Codes?
2) When you press START button with foot on brake, WHERE does click sound come from (under hood, above your knees, in front of glovebox), and is it a single click, or a "ratchet-like" repeated clicking?

George