There was a loss of power and then completely shut off, crank no start?

2013 BMW 328XI
108,000 MILES • 2.0L • V6 • TURBO • 4WD • AUTOMATIC
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NICK98568
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My car had a loss of power and then completely shut off. I tried to tow it, but the car would not shift gears at all. I had to manually get under the car and do it. The car cranks but does not start. Battery was replaced and the fuel pump was replaced. The car is getting fuel and has spark.
Jun 23, 2023 at 12:17 PM
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JACOBANDNICKOLAS
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Hi,

If that is the engine cranking, you lost compression. It doesn't sound like there is any.

If the timing chain broke or jumped time, that is what can happen. To make matters worse, I believe all 328i vehicles with the 2.0L are interference engines.

What I need you to do is check engine compression.

Here is a link that explains how it's done:

https://www.2carpros.com/articles/how-to-test-engine-compression

You will need a compression gauge, but if you don't have one, most parts stores will lend one to you. Note: Compression should be between 100 psi and 150 psi with a maximum variation of 30 psi between cylinders. I have a feeling you are going to find 0 psi or extremely low compression. If that is the case, we will need to inspect the timing chain and timing.

Do this and let me know the results.

Take care,

Joe
Jun 23, 2023 at 9:25 PM
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NICK98568
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The car has no compression.
Jun 28, 2023 at 4:55 PM
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JACOBANDNICKOLAS
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Hi,

I had a feeling. That is what it sounded like in the video. The interesting thing is it has a chain and not a belt. Normally, a chain will last the life of the engine. At 108K, it shouldn't have failed.

Do you plan to remove and inspect things such as the timing chain and cylinder head?

Let me know.

Joe
Jun 28, 2023 at 9:12 PM
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NICK98568
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Yes, I’m removing it.
Jun 29, 2023 at 6:19 AM
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JACOBANDNICKOLAS
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Hi,

Sounds like a plan. If you have a chance, could you let me know what you find? I'm interested in knowing.

Also, I don't know if you need them, but I attached the directions for the removal and installation of the cylinder head. These are just for the head. If you need anything other, let me know.

Take care,

Joe

See pics below.
Jun 29, 2023 at 10:08 PM
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NICK98568
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The guide of the timing chain is broken.
Jun 30, 2023 at 6:05 AM
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JACOBANDNICKOLAS
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Hi,

That isn't good news. There is a good chance internal damage was done to the cylinder head, pistons, or valves.

Now that you know the timing chain failed, we need to remove the cylinder head to check for damage.

Do you need anything as far as the timing chain/tensioner replacement? If you do, let me know.

Take care,

Joe
Jun 30, 2023 at 9:10 PM