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I had a chance to carefully look at a Touareg and here is what I found. The pictures have been added to the http://www.myturbodiesel.com/1000q/vw-touareg-tdi-dpf-audi-q7.htm
1. Remove the spare tire. You have to unscrew the middle holder.
This has also been added to list of complaints in the 2009-2010 vw touareg tdi buying guide and review article. If you have an injury or are a little lady, it's a hassle to remove the tire to add adblue. A conservative interval to top off the tank is every 5-7,000 miles. Or at least add a few liters every 5,000 miles and top if off when you do the oil change.
The BMW 3 series diesel has the adblue port in a bumper port, the Mercedes ML320 bluetec and the GL320 bluetec have their adblue port next to the spare tire, and the Q7 has it next to the fuel filler.
The adblue refill is included with 3 years/36k miles service on US VW Touareg TDI.
2. Pull the rubber cap off and unscrew the adblue tank cap.
Press the bottle down to start the flow of fluid.
Installation is the reverse of removal
1. Remove the spare tire. You have to unscrew the middle holder.
This has also been added to list of complaints in the 2009-2010 vw touareg tdi buying guide and review article. If you have an injury or are a little lady, it's a hassle to remove the tire to add adblue. A conservative interval to top off the tank is every 5-7,000 miles. Or at least add a few liters every 5,000 miles and top if off when you do the oil change.
The BMW 3 series diesel has the adblue port in a bumper port, the Mercedes ML320 bluetec and the GL320 bluetec have their adblue port next to the spare tire, and the Q7 has it next to the fuel filler.
The adblue refill is included with 3 years/36k miles service on US VW Touareg TDI.
2. Pull the rubber cap off and unscrew the adblue tank cap.

Press the bottle down to start the flow of fluid.

Installation is the reverse of removal