No crank no start?

Tiny
MISSRSH
  • MEMBER
  • 2008 BMW X6
  • 3.0L
  • 6 CYL
  • TURBO
  • 4WD
  • AUTOMATIC
  • 245,000 MILES
At the beginning how are you all?
I'm from Yemen and nobody has any knowledge about BMW's.
I faced this issue after the bottle of the radiator was broke during replacing A/C compressor.
And the water comes out under the hood while driving.
Then issues of the light brake and taillight always activate till I press start button several times or inserting the fob key several times then issue of no crank no start appears after days no problem first start but after driving and switching of the engine nothing only clicking and sound from rear Fusebox and down the steering and sometimes airbag lights and the wipers don't stop and driving stability.
Sometimes disconnecting battery terminal sometimes help to crank and start and sometimes till it cooled
I hope that I explained my headache and crazy problem properly.
Thank you all.
Sunday, December 31st, 2023 AT 3:23 PM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

I'm not sure which issue you are looking for help with. Is coolant still leaking from under the hood? Does the engine start and run?

As far as the no-start, if you hear a clicking from the rear, are you sure the battery terminals are both clean and tight?

Let me know.

Joe
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Sunday, December 31st, 2023 AT 6:19 PM
Tiny
MISSRSH
  • MEMBER
  • 3 POSTS
No there is no leaking water I changed the broking black radiator coolant bottle then the issue of no crank no start appears after replacing the A/C compressor and the broken bottle I assumed that maybe something.
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Monday, January 1st, 2024 AT 5:05 PM
Tiny
MISSRSH
  • MEMBER
  • 3 POSTS
On the A/C compressor or water damaged the harness wires I am not sure.

The car not starting it start only when it is cold or after disconnecting the battery terminal (-) and the brake lights remain on until pressing the button start several times or inserting the key fob several times.
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Monday, January 1st, 2024 AT 5:29 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

As far as the no-start, we need to narrow things down. If this started after replacing the coolant reservoir, then chances are something got wet, or a wire was damaged.

When the engine won't start, try using starting fluid. If it starts and then stalls, we will know it is a fuel related issue. If there is no change, then I need you to check for spark at the spark plugs.

Here is a link that explains how to check:

https://www.2carpros.com/articles/how-to-check-for-ignition-spark

Try this and let me know the results.

Take care,

Joe
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Monday, January 1st, 2024 AT 6:28 PM

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