How big IS the fuel tank on a B7 RS4?

Post by **PetrolDave** » Fri Nov 28, 2008 7:42 pm

P_G wrote:Do you pull or push. I always pull.....

I always push

Post by **P_G** » Sat Nov 29, 2008 2:03 pm

Might try that next time.

Post by **P_G** » Tue Dec 09, 2008 2:38 pm

So I have just filled up to the brim today and pushed the fuel filler nub twice for ten seconds to get.... 65.91 litres in the tank with a range of 30 miles left on the DIS and the fuel needle not touching the red line.

So surely that equates to at a 70 litre tank?

Post by **PetrolDave** » Tue Dec 09, 2008 2:46 pm

P_G wrote:So surely that equates to at a 70 litre tank?

That's what I reckon we've got.

Post by **NGS521** » Tue Dec 16, 2008 4:29 pm

no way is it 70 litres i rarely get in anything in above the high 50s and i always let it 'run dry' showing 0 -5 miles range.

Post by **PetrolDave** » Tue Dec 16, 2008 8:03 pm

NGS521 wrote:no way is it 70 litres i rarely get in anything in above the high 50s and i always let it 'run dry' showing 0 -5 miles range.

If you can only get in less than 60 litres then you may have a problem.

BTW are you using the button in the filler neck? Pushing (or pulling) that lets you get an extra 5-7 litres in the tank.

Post by **P_G** » Tue Dec 16, 2008 9:27 pm

Unless the four different petrol stations I have used are all over exaggerating what they are putting in my car then I have to disagree. I have had a 10 mile DIS range and still managed to get in 61-63 litres.

Post by **MoRS6+** » Tue Dec 16, 2008 10:52 pm

B7 RS4 fuel tank is supposed to be 63 litres.

.pdf here: http://www.audiworld.com/model/

Don't know how accurate this is for that car though.. I'm supposed to have an 82 litre and I always seem to be right on that if I fill up from empty, so it's accurate on mine at least.

Post by **S4INT** » Wed Dec 17, 2008 10:22 am

I managed to squeeze 70 litres in to my B7 a few times by using the air release button.

Post by **NGS521** » Wed Dec 17, 2008 12:53 pm

PetrolDave wrote:
NGS521 wrote:no way is it 70 litres i rarely get in anything in above the high 50s and i always let it 'run dry' showing 0 -5 miles range.
If you can only get in less than 60 litres then you may have a problem.

BTW are you using the button in the filler neck? Pushing (or pulling) that lets you get an extra 5-7 litres in the tank.

I've never used the button! I will use that then report back, an extra 30 miles added to the range would be lovely. Thanks

Post by **MoRS6+** » Thu Dec 18, 2008 3:18 pm

I know this is the RS4 section, but out of interest, does any wise folk know if this secret button is on the RS6 by any chance? If I did then in theory would have just under 90 litres! If not, hey ho..

Post by **P_G** » Wed Jan 21, 2009 4:15 pm

So just to verify the tank must be some 70 litres as I have just run my RS4 to 0 miles on the DIS, and then did some extra 15 miles after thatso the dial is off the red line on the gauge but dtill going! Just filled up with... 67.5 litres for just over £60.

So anyone up for running their RS4 after the DIS reaches 0 miles until it cuts out to see how much extra in the tank there is?

Post by **SR71** » Wed Jan 21, 2009 4:43 pm

I'm not sure if its an urban myth, but doesn't the fuel cool the injectors?

With an FSI engine, I'd imagine running the car dry is a pretty silly idea...

Kudos to any volunteers though.

Post by **al'srs4** » Wed Jan 21, 2009 8:01 pm

Pardon my ignorance but whats this toggle/button for in the first place - why?

Post by **P_G** » Wed Jan 21, 2009 8:35 pm

It appears to be an tank air release valve, lets the air out so more space to fill with petrol. Either that or it allows fuel into a reserve duct?

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How big IS the fuel tank on a B7 RS4?

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