Exhaust fluid tank

thundershorts

Top Post Dawg
Joined
Jul 15, 2010
Location
west chester pa
TDI
2015 passat tdi sel premium 2015 golf s tdi gls tdi b5.5, 2002 eurovan,Peugeot 505 td,Citroen cx25 prestige
Does anyone know if an A3 def tank is same as mk7 golf?
 

oilhammer

Certified Volkswagen Nut & Vendor
Joined
Dec 11, 2001
Location
outside St Louis, MO
TDI
There are just too many to list....
The 2015 Golf shows only one DEF tank.

The 2015 A3 shows a VIN split, with the early one being the same as the Golf, the later one not (A suffix to B suffix on the part number).

No idea what the A and B difference is, but depending on VIN in may be the same as the Golf.

Also, my ETKA is no longer able to be updated, so this information may not be valid any longer.
 

paperthin

Veteran Member
Joined
Jun 3, 2013
Location
Toronto
TDI
15 A3 TDI
Wow I have been trying to track this down for a little while now with no luck, i see i am not the only one looking. I have assumed it is 4 gallons like the golf. I gave up and just waited for the warning to come on and then filled the 2.5gallon jug and wait to repeat the cycle.
 

thundershorts

Top Post Dawg
Joined
Jul 15, 2010
Location
west chester pa
TDI
2015 passat tdi sel premium 2015 golf s tdi gls tdi b5.5, 2002 eurovan,Peugeot 505 td,Citroen cx25 prestige
I bought one for an a3 that was built 11/14 so I assume that would be early one. we'll see if it works in the mk7 golf. What got smacked was the sensor in the bottom thats under the plastic cover on the right side. it has two wires going to it through a plastic sheathed 3/8 tube. Any idea what that sensor does?
 

thundershorts

Top Post Dawg
Joined
Jul 15, 2010
Location
west chester pa
TDI
2015 passat tdi sel premium 2015 golf s tdi gls tdi b5.5, 2002 eurovan,Peugeot 505 td,Citroen cx25 prestige
The A3 tank fit the golf mk7 perfectly. no codes or adaptions needed.
 
Joined
May 7, 2013
Location
Oregon
TDI
none, Passat V soon
Did you, or could you cut open the damaged unit to see how much DEF residue is crusted on tank and components?
 

thundershorts

Top Post Dawg
Joined
Jul 15, 2010
Location
west chester pa
TDI
2015 passat tdi sel premium 2015 golf s tdi gls tdi b5.5, 2002 eurovan,Peugeot 505 td,Citroen cx25 prestige
damaged unit only has 2000 miles on it but of course it sat for two years. I'm keeping it intact in case I ever need the pump/ heater
 
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