Citroen C5 X7 engine sounds

[Oudii]

Are these normal BlueHDi 2.0 engine sounds? This is my first diesel car and some of these sounds that it makes are so much different from petrol car. Am i just paranoid or are these just normal diesel engine sounds?

[PaulC5]

Sounds like a diesel to me, they are a lot noisier than a petrol. Can you hear it much inside the car since there is usually enough soundproofing to drown out the engine noise.

[Oudii]

Yes, i can hear to inside. The sound that makes me worried is this low grumbling kinda sound that can be heard in the videos, little bit harder to hear in the second one. I'l have to check if it makes the sound when i put gear on or is it only when its in idle.