All Things Mk5 > How to Guides / Troubleshooting

Whining sound in lower gears . My 07 Mark 5 GTI has developed this sound ....... I have

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rich83:
Someone on here had it fixed. Some bearing of some description

AJG09:
aslong as it doesnt fall apart i dont mind it whining, if it starts to effect the car or the way it shifts then il start to worry  :scared:

john87:
My MK5 GTI did this, whereas my R32 doesn't.. currently on 67k miles.

I was told that it's got more to do with the profile of the gears which causes the whine, but that doesn't really explain why some cars are louder than others..

GTIEagles:
Mine whines in 1st but once in 2nd or above it goes. Not sure if this is normal or not?

pudding:
Whines under power or on the overrun?

Yes the gears in the O2Q/O2M MK5 gearboxes are semi-helical (for strength), so prone to a little more whine than a full helical cut gear (02A/02J MK3/MK4).

A common issue in the manual box (not sure about DSG) is the end case that holds the bearings for the gear shafts can ovalise, which over time can misalign the gear meshing slightly.  In extreme cases this can lead to teeth being stripped off (usually in very high boost / big turbo conversions) but generally if the car is stock or the usual stage1/2 stuff, it just causes noise.

Diff whine (sounds like a tram slowing down and is very loud) on the overrun can be an issue too, but not that common.

Layshaft bearing wear causes a marbles in a tin rattling when hot, which goes when you press the clutch pedal down.  Common.

Thing is, VAG manual gearboxes always have been agricultural and noisy, and hate being rushed.  They can go on for years making these noises with no adverse affects, so it's more of an irritation than a major problem. 

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