Strange sound when press clutch

[Antreas]

Hello. It has been a while I notice on my BMW E87 2006 that from idle engine when press the Clutch to put in 1st gear usually I hear a strange sound from below the car. It sounds like transmition or differential gears even without put in any gear yet or sometimes like exhaust gasses and this is in different places at length of the vehicle. Though this is a one-time sound but happens almost half of the idle times on the road. I also confirmed the same issue exists on my wifes car Toyota Auris 2010. What is this? Sometimes it sounds pretty loud. Is it normal?

 

[Matski]

I have 2006 E87. It makes weird noises whichever pedal I press.

Good luck.

 

[Giannis]

Could you upload a small video so that we can listen to it?

 

[CrunchSlaughtered]

Hello. It has been a while I notice on my BMW E87 2006 that from idle engine when press the Clutch to put in 1st gear usually I hear a strange sound from below the car. It sounds like transmition or differential gears even without put in any gear yet or sometimes like exhaust gasses and this is in different places at length of the vehicle. Though this is a one-time sound but happens almost half of the idle times on the road. I also confirmed the same issue exists on my wifes car Toyota Auris 2010. What is this? Sometimes it sounds pretty loud. Is it normal?

If the noice is only when the clutch pedal is pressed it should be the clutch bearing. To change it is needed the transmission and the engine to be split.

 

[Antreas]

thanks for the replies. This is not a noise. Its a one-time sound like a hit or like a knock. Im wondering this could be the Differential so if it has sensor may preload before roll the car?

 

[CrunchSlaughtered]

thanks for the replies. This is not a noise. Its a one-time sound like a hit or like a knock. Im wondering this could be the Differential so if it has sensor may preload before roll the car?

Or a slightly stuck handbrake cable?

 

[Antreas]

Or a slightly stuck handbrake cable?

ok but this arises before start moving the car