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Why do our MKV GTIs sound like Diesels at idle?

GTI 2.0T

GTI 2.0T

Rally Car Champion
Location
Oman
Car(s)
mkv GTI
yeah its a little bit unordinary.... But its ok:rolleyes:
 
D

Dude123

Oval Champion
Location
Loves Park, IL
nomios said:
Hmmm... are you saying you start it up, hear a clicking sound, and while still idling it goes away?
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Not exactly, It does not go away untill some driving has happened.
 
N

NorthGTI

Rally Car Newbie
Location
Ohio
Double-V said:
Due to the high compression ratio (for a turbo) and the direct injection. Diesel engines use direct injection too.
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Yes, due to high compression, the knock sensors kick in frequently to prevent pre-detonation. Because they work on sound and vibration, the engine has to start making a little detonation noise to make the sensors kick in.
 
Herby

Herby

Autocross Newbie
Location
Los Angeles
cmdrfire said:
Oops, sorry :redface: thanks for the correction...

Don't Subarus have Boxer engines though?
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I actually interpreted what you said as the clicking sounds like a flat-4 motor, to which I thought about the beetle type 1 motor since it has a tapping sound from the valves:biggrin:
 
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