The car shakes at idle?

Tiny
HT35
  • MEMBER
  • 2006 BMW 735
  • 3.0L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 270,000 MILES
The car shakes at idle, but as soon as I give it gas, the shaking goes away. Injectors were checked. All okay. How do I fix this issue?
Sunday, October 23rd, 2022 AT 4:30 PM

4 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,640 POSTS
I would start by checking the spark plugs and the engine compression. Here are the spark plugs you should use and a guide to help you do the compression test. This generic guide will help walk you through the steps for the spark plug change with instructions below for your car.

https://www.2carpros.com/articles/how-to-change-spark-plugs

and

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

You can rent a compression gauge for the auto parts store for cheap or free. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem.
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Monday, October 24th, 2022 AT 11:41 AM
Tiny
HT35
  • MEMBER
  • 3 POSTS
I once uploaded a video. It's a 2006 diesel 730D and a user here had the same problem. Error code in error memory is: 4BD2 Ars Torque Limitation.
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Friday, October 28th, 2022 AT 3:42 PM
Tiny
HT35
  • MEMBER
  • 3 POSTS
Here are screenshots of the user I mean.
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Friday, October 28th, 2022 AT 3:47 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,640 POSTS
Yep, that is not running correctly. I would test the engine for vacuum leaks when it is cold only.

Here is a guide to help:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Please go over this guide and report back.
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Saturday, October 29th, 2022 AT 2:33 PM

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