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Exhaust valves not opening?

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Hi, just washed the car and noticed that the inner exhausts were clean but the outers were filthy. It got me thinking as I thought the car has been very quiet from new, almost no dsg farts and no pops like other owners have had. Is it possible the valves in the exhaust aren't working, and is there a way to test this? I've had it with the engine in race, in individual mostly, it's a 7.5.

thanks

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Yep, as above on the pre facelift, it’s the two inner ones get sooted up if not in Race/Sport (all 4 flaps open).  If the latter then all 4 pipes get sooty.  Different on the 7.5 then?  Is it a hatch or estate I wonder. Isn’t the 7.5 estate now different set up to the pre facelift one too?  

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Are you using S mode with the DSG ?   or flicking to manual from S mode ?   That's the only way my Mk 7 DSG (hatch) gets vocal 🙂 

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8 hours ago, gregozedobe said:

7.5 R estate doesn't have any valves, all 4 outlets are open all the time.  IIRC the 7.0 R estate had two fake outlets (not connected to anything), so only the hatches had exhaust valves.

Yep I was just so disappointed the 7.5 Estate did not come with valves and was permanently 'On'.

 

 

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Be interesting to find out which settings actually affect the exhaust valves on the 7.5R if anyone knows?

Noticed today that 3 of my exhausts are black but the outer one on the passenger side is still shiny silver after 1200 miles from new suggesting the valve on that side could have never opened. 

Had the car in race mode but the DSG in D for about 80% of the time apart from one long motorway journey when it was in normal. 

Does this sound like something that needs looking at?

 

 

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