B8 3.0 tdi Vs B7 3.0 tdi Fuel Consumption.

[Burfy]

Hi all I have owned a 2009 A4 B8 3.0 tdi Avant for 6 months now, previous to that I have a 2007 A4 B7 3.0 tdi Avant.......... both great cars :D ...... I was expecting the fuel comsuption to be the same or even slightly better on the B8..... But the B8 is using loads more fuel :confused: No idea why? Theres no leaks or smoke under acceleration... the only thing I found are the engine codes are different. Oh both are 245ps.

[theskyfox]

Im quite surprised. Mines not too bad..I get on average 450-500 miles out of a tank (I usually wuss-out and refuel before seeing the fuel light). How many miles are you getting out of a tank? and how many miles have you put on the clock? (on the B8).

-Andrew

[dts439]

I'd expect to get slightly better on the B8. The 2007 B7 is 233ps, 2009 B8 is 240ps (latest ones since facelift are 245ps).

Are the cars manual or auto?

I went from a 2006 Auto B7 3.0 TDI to an S-Tronic 2010 3.0 TDI (240). I'm getting about 5% more mpg on the newer car. I averaged 36-38 on the B7 over 30k miles and and now getting 38-42 on the B8. Equates to about 20-30 miles per tank. Some early 2009 cars I think had the normal ZF Auto which is not as efficient as the S-Tronic? Main difference to me was how quick the car gets into top (7th) gear.

The latest 245ps engine looks like its 5% better again on the official figures (and CO2).

Both great cars as you say.

[Ecosse Lynx]

Hi

Just drove my 3.0 V6 TDi S Line Sp Ed Quattro Avant S-tronic (245) (6500Km on the clock) last Friday Folkstone to Forfar 885km on a tank (59.82litre) onboard comp showed 6.6 actual 6.76l/100km (41.8 MPG). Found if set cruise for 1800 RPM 126KMP it seems to be best. Runing at 1950 RPM 130KMP the actual 7.21l/100km, so 4Km/hour difference give quite difference

John

[Rhino at Work]

Im quite surprised. Mines not too bad..I get on average 450-500 miles out of a tank (I usually wuss-out and refuel before seeing the fuel light). How many miles are you getting out of a tank? and how many miles have you put on the clock? (on the B8).

-Andrew

I usually get about 450 miles from a tank, mostly commuting between Leeds and Harrogate - mixture of city and open road driving. When the car was new it was about 50 miles per tank lower but seems to have settled down now.

[Burfy]

Hi guys thanks for all your interest. both of them are manual transmission.
I was averaging about 39 mpg on the B7 3.0 tdi..... 27 mpg on my B8 3.0 tdi...... same driving styles on both cars.

Thanks ... Andy

[Ecosse Lynx]

Hi

Forgot to mention my car is auto.

John

[satsu]

27 mpg on my B8 3.0 tdi


That sounds way too low to me. My range is typically from 35-45mpg for a traffic-heavy short trip through to a long motorway run cruising at the speed limit. The only time I see below 30 is on very short trips in cold weather / heavy traffic. If I were consistently getting sub-30 I'd be paying a visit to the dealer to see what was up.

[Pauls898]

Yes my B8 3.0 TDI QSE gets me 42.5 MPG I mainly do longer jouneys like over 35 at a time with Motor way and A Roads, but I don't hang about either, I can reguarly go over 500 miles before the light come on before I brim the tank again lol