Hello fellow Skoda owners! i am new here, as i have just created an account because well i own a Fabia Mk II, and to get advice on any problems or odd noises that may occur.

 

This is one that has had me baffled, other car forums baffled, its a noise like metal on metal contact inside of the dashboard, like something spinning that makes contact with another part and scrapes against it with every revolution, its not the engine fan, not the camshaft, nor is it the air con, i have ruled all them out, the sound itself cannot be heard in the engine bay, only slightly towards the rear of the engine bay, near the firewall, that probably means whatever is making this sound is mounted on one of the sides of the firewall, whatever it is, it is something constantly spinning the entire time the engine (1.6 TDI I4) is running, it also follows the RPM of the engine, that means if the engine is revving higher the noise will be faster, its not possible to hear the sound at higher speeds or RPM because the noise of the engine itself drowns out the weird noise, but it definitely goes with the RPM of the engine, it could be the turbo, i am hoping its not because that's an expensive part, everything from pumps, servo motors, transmission, have all been possibilities, but it does not affect the operation of the vehicle, it can drive perfectly as if the noise wasn't there in the first place.

 

Sometimes the noise varies in volume, from nearly inaudible to very noticeable, it also happens more in warmer weather, or after the car has warmed up, leading to me thinking that whatever the part is, its expanding and making contact as a result.

 

I managed to get an audio recording of the sound while in traffic, the first file (fabi.mp3) is unedited, aside from some cutting out the part where you can hear the noise, and looping it 10 times, the "click" you can hear at the start of each loop is the indicator/turning signal stalk.

 

The second file (fabiedited.mp3) is the same file, but i've added an "old telephone" EQ to it which brings out the high-end of the audio and removes the low-end, allowing the noise to heard more clearly.

 

Either way i'm looking forward to hearing your advice, or if you've heard a noise like this in your skoda before, i will also appreciate any help or advice from this forum.

 

 

fabi.mp3

fabiedited.mp3

I think that it might be a flap motor getting confused, have you tried completely switching off the heating/cooling system to see if this stops?

 

Edit:- I know that you have said that you have dismissed the air con, but have you tried switching it off completely, if not the controller will still be able to try to get all the flap motors into the correct position.

 

In the old B5 Passat and probably others like B5 A4 ect, hunting flap motors gave out a noise which was called "grandfather clock" knocking noises.

Edited 1 March, 20197 yr by rum4mo