Anecdote regarding exhaust flap

roni024

Veteran Member
Joined
Mar 31, 2007
Location
Syracuse, NY
TDI
2015 Passat TDI SEL DSG
I thought I'd mention this here for anyone else whom may find it valuable:

I recently replaced my exhaust flap after attempts to clean and lubricate my faulty one failed. After doing so, my fuel economy appears to have increased considerably. My morning work commute previously averaged around 37 MPG, now it's in the low to mid 40s. For reference, my car has just over 125k miles.
 

740GLE

Top Post Dawg
Joined
Aug 19, 2009
Location
NH
TDI
2015 Passat SEL, 2017 Alltrack SE; BB 2010 Sedan Man; 2012 Passat,
How long is your commute? the valve will help the engine get up to normal operating temps lot quicker.

BTW if you'd have bought my valve it would bump you up to 45MPG, guaranteed!
 

jrm

Veteran Member
Joined
Jul 24, 2013
Location
Oregon
TDI
2013 Passat SE with nav (totaled)
I could only wish, I'm not even to the freeway in 10 miles
 

740GLE

Top Post Dawg
Joined
Aug 19, 2009
Location
NH
TDI
2015 Passat SEL, 2017 Alltrack SE; BB 2010 Sedan Man; 2012 Passat,
That short of a commute makes sens the valve would help you out.

On longer runs, 30+ you'd actually find your mileage to actually go up with out the valve.
 
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