Hello. As in the subject, I have a strange problem, the air filter is well sealed and twisted. More like a rumble, but only at low speed.
The car is burning and has power, but this sound appeared suddenly.
What comes to my mind is either a leaky EGR, the valve at the inlet (works evenly) or the timing changed.
Dpf is rather ok because there are no errors in the computer.
It remains to check the compression if it is equal and correct. Nothing else comes to mind. The intake flaps are new and the extinguishing flap works, i.e. it extinguishes the car on the computer test.
The car is burning and has power, but this sound appeared suddenly.
What comes to my mind is either a leaky EGR, the valve at the inlet (works evenly) or the timing changed.
Dpf is rather ok because there are no errors in the computer.
It remains to check the compression if it is equal and correct. Nothing else comes to mind. The intake flaps are new and the extinguishing flap works, i.e. it extinguishes the car on the computer test.