Engine still shaking time to time

[Mohammad-997]

Hi i have a audi a3 2.0 tdi with 110k mileage. Im having issues were my car would start shaking so badly if i stop at a traffic light or even sometimes when i start my car. Ive opened the bonet and the engine is shaking and sounds like a tractor the dmf doesnt make any noise and ive had the car scanned and it comes up with cylinder 4 and cylinder 2 glow plug circuit. Would this cause the engine to shake the whole car? have had my car scanned the codes that came up was cylinder 2 and cylinder 4 electrical fault glow plug circuit the codes are P0674 and p0672

 

[GGG_666]

Engine mounts?

 

[ch1z64]

Worth a read ( https://www.obd-codes.com/p0672 ) looks like you do the same check for cylinder 4 .