Shaking on warm engine at idle

Shaking on warm engine at idle

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Discussion

Beany34

Original Poster:

5 posts

18 months

Monday 22nd May 2023
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Hi I have a audi a4 b7 2.0 tdi 2006 my car is driving fine... when engine gets to operating temperature the car vibrates and shakes at idle no smoke or anything idle is not hunting .. had vcds on to check everything seems good only got p0674 code for glow plug . Checked injectors all in spec cylinder 1. -0.16 mg . Cylinder 2. - 0.02 mg . Cylinder 3 . 0.28 mg . Cylinder 4 . -0.07 mg .. but injection quantity is bouncing around 1.5 mg to 2.5 mg/str and it says it supposed to be around 3.0 to 9.0 mg/str is there any way you can adjust that thanks ..

PistonTim

560 posts

146 months

Tuesday 23rd May 2023
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BKD engine? They all do that, sir.

Beany34

Original Poster:

5 posts

18 months

Tuesday 23rd May 2023
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It's a bre

Beany34

Original Poster:

5 posts

18 months

Tuesday 23rd May 2023
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With the injection quauntity running that low wont that mean the car is running rich ?

ads_4116

148 posts

94 months

Thursday 25th May 2023
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The 140ps tdi engines have a common issue when shaking on idle when warm - highly likely its the DMF (dual mass flywheel) is on its way out. It almost feels like the car is vibrating/wobbling slightly when warm and idle - you probably feel it throughout the whole car. When driving normally, the car drives fine and feels like it has no issues. Its a common issue, and many people have reported that it can be like that for 30-40k miles plus (they've just put up with it).

Beany34

Original Poster:

5 posts

18 months

Thursday 25th May 2023
quotequote all
Thanks for the reply yes apart from shaking at idle when engine warm car drives really nice will leave it alone till it gets worse