Noises and mechanical questions

[decsnz 0]

Hi, I am new to BMWs and have just purchased a 95 318ti. It makes a sort of mechanical hissing noise when driving that increases with speed. It sounds like it is coming from the drive train. It also has a sort of ticking noise when accelerating. Any ideas? Are they normal?

Engine also seems to hesitate and does not feel like it is 100% to me. The RPM will also dip at idle and engine seems to stutter a bit

Cheers

[my_e36 43]

Hi, I am new to BMWs and have just purchased a 95 318ti. It makes a sort of mechanical hissing noise when driving that increases with speed. It sounds like it is coming from the drive train. It also has a sort of ticking noise when accelerating. Any ideas? Are they normal?

Engine also seems to hesitate and does not feel like it is 100% to me. The RPM will also dip at idle and engine seems to stutter a bit

Cheers

Hissing sound? Is it not a clogged air filter? Quite commonly neglected service item.

[Greg111 13]

Hi, I am new to BMWs and have just purchased a 95 318ti. It makes a sort of mechanical hissing noise when driving that increases with speed. It sounds like it is coming from the drive train. It also has a sort of ticking noise when accelerating. Any ideas? Are they normal?

Engine also seems to hesitate and does not feel like it is 100% to me. The RPM will also dip at idle and engine seems to stutter a bit

Cheers

My Z3 also did that (had the same engine), it kept on trucking though, dont no about the ticking noise though?

[Yuen 16]

Hissing/whistling noise on my car was from vacuum leaks, check your hoses. Not sure about ticking noise, a noise that sounds like rattling pebbles in an M50 engine would be the VANOS, not sure about yours?

[decsnz 0]

The hissing noise sounds like ti it coming from the rear of the car. The ticking is only under acceration and almost sounds like an exhaust leak on one cylinder.