2.0 TDI 170 Fuel Consumption

Mark Hunt · 27-12-2007,12:48 PM

Hi All

I've logged up 20K in my Audi A4 Avant Quattro 2.0TDI, it's averaging 36mpg and already has had a turbo replaced after a month-long saga with my local Audi dealer claiming there was nothing wrong with the car. In what can only be the Audi equivalent to an I.T depts " Have you tried turning it off and on again", they normally try to fix it by "Downloading the latest software map", which achieves nothing. Not impressed with the car economy or back up, this is my 6th Audi Avant and my last..I think they have pushed the engine too far and lost their way on emissions (vs. BMW), torque (it appears higher up the rev range) and economy.

**ptflooring** · 30-12-2007,09:51 AM

Hi all, just joined this forum for a similar problem, which I have started a new post.
i have a 3 month old A4 140 tdi avant with multitronic, and around town I have just worked out getting around 25 mpg and do not drive hard. My previous car was the same but a manual and that was in the forties, I know they quote a less mpg for a multi but I think I have something very wrong, hope my audi dealer will be as helpful as they have been in the past. My last long run was 550 miles, and did this on one tank, all motorway.

**bogey888** · 11-01-2008,12:13 PM

Hi, am new to this site but glad to have found it, has been very informative!

Bought a brand new A4TDI 170 S-Line Special edition in October. Have been really happy with it apart from the MPG you guys are moaning about.
I was just wondering if this will improve to what the tech Spec says in the brochure or have we been sold a dummy!? Also is there anything else to worry about with this particular car/engine as I've read they have stretched this engine to the limit!?

Cheers

**prolfe** · 11-01-2008,02:07 PM

Originally Posted by bogey888

Hi, am new to this site but glad to have found it, has been very informative!

Bought a brand new A4TDI 170 S-Line Special edition in October. Have been really happy with it apart from the MPG you guys are moaning about.
I was just wondering if this will improve to what the tech Spec says in the brochure or have we been sold a dummy!? Also is there anything else to worry about with this particular car/engine as I've read they have stretched this engine to the limit!?

Cheers

Welcome to our little site.

I have averaged 41mpg since new and I rarely hang about.

Driving economically i can expect this to be in the low 50's

**John140** · 12-01-2008,09:57 PM

I went from the B6 TDI 130 to the B7 TDI 140, and I am still dissapointed by the 2.0TDI fuel consumption. Ive done 12K so far and on a good day I can just about get 44mpg on a run, where my old TDI 130 would have done 50, and round town I am down to 35-36 where my old car would have done 40 ish. I would like someone to tell me why the 2.0TDI is so much more thirsty in the real world, whereas on paper it should be about the same.
Also, it seems that these engines vary from car to car, speaking to some people they have no issues at all with fuel consumption. MY car is fitted with the 'BRE' version of this engine, and the Audi dealer say that everything is normal as far as they can see.
Have they done something different with the EGR setup on these engines to meet Euro 4, which has screwed the fuel consumption ?

**bogey888** · 12-01-2008,10:43 PM

I love my B7 A4 2.0TDI 170 S-Line Special Edition but the mileage sucks, wished I got the petrol version now! Around town I get around 30-33 MPG which is not great, today I got the best mileage on the motorway, 48 MPG and that was driving it like grandad!!! Have Audi tweaked this diesel engine that much that it drinks as much as a petrol engine!!????

**prolfe** · 13-01-2008,06:18 PM

It must be an abnormality with the both of your engines. As in mine it is so easy to hit high forties, low fifties.

As for the petrol, you really do have to drive like a grandad, just to hit 35mpg let alone give it some stick.

**Giles H** · 19-12-2008,06:44 PM

Been reading the posts and I just had to say something.....

I run a 2006 140ps TDi which I've had from new with 70,000m on the clock. I do a lot of motorway miles but also live out in the stix....so I get to play a little every now and then

....I generally get 650 miles out of a tank of standard tesco stuff....but on one trip up north, i wasn't in a hurry....steady 60mph...and the DIS eventually told me after a few miles that i had 1200 miles left in the tank!!!! So.....take it slow and steady and they wont cost you a penny! lol

However.....

....who wants to do 60mph!?

Oh....and I had it on a rolling road near me (a calibrated one)....and she was kicking out 153bhp after 20,000m! And no...I haven't touched anything on it! Can't be bad!! lol

**prolfe** · 21-12-2008,08:20 PM

153bhp is probably about right. Superchips and Revo have had the 170 at 182 and 195 as as standard.

I came back from Plymouth the other day, A roads - dual carriage way and then the M3, M25 and M1.

It was a leisurely drive back speed limit pretty much all the way, 70-90 on the dual carriage ways and motorways and got about 48mpg.

**randall977** · 10-07-2009,11:33 AM

30 mile trip on A roads with very few stops at about 50mph, barely touching the accelerator....46mpg. So where is the missing 15mpg? I phoned Audi and they helpfully told me it was down to the driver - I think it's actually down to their very questionable official mpg figures. Interestingly when I drove it at 80mph it made very little difference to the mpg. Does my car need remapping (currently all the power is delivered at 2000rpm) - would that help? Could poor quality oil make any difference?

I kind of wish I had never retro fitted the trip computer now!