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sprinkles08, ASE Certified Technician
Category: BMW
Satisfied Customers: 21440
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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M3 park after 12hour then cannot start the car, all is

Customer Question

m3 park after 12hour then cannot start the car
JA: Have you checked the battery, particularly the terminal connections? Are they corroded?
Customer: all is already done replace
JA: What year is your M3?
Customer: 2009
JA: Are you fixing your M3 yourself? What have you tried so far?
Customer: yes,im fix myself.
JA: Anything else you want the mechanic to know before I connect you?
Customer: im is the mechanic
Submitted: 1 month ago.
Category: BMW
Expert:  Steve replied 1 month ago.
Hello and welcome,
My name is ***** ***** it will be my pleasure to assist you today.
What does the car do when you try to start it?
Customer: replied 1 month ago.
my m3 have a issue park over 12 hour the car cannot be start
i was replace the IBS cable and CAS module
Expert:  sprinkles08 replied 1 month ago.

Hello and welcome to JustAnswer!

I'm assuming that the engine cranks but doesn't start. There are many things that can cause a no start condition and it's going to take some testing to determine what the problem is.

The first step in diagnosing the problem will be to use a scan tool or code reader to see if the engine controller will communicate, and if it does to see what fault codes are set. Do you have a scan tool?