[Eosman]

My previous car was a 2004 Audi A3 2.0 TDI 140 DSG. Boy, did it have a noisey engine By contrast my recenty purchased 2007 2.0 TDI 140 DSG is impressively quiet. Infact you barely know it's a diesel (apart from the fact that it pulls like a train).

Does anyone know what Audi/VW have done to make this engine so much quieter?

 

[Z-man]

Perhaps the newer common rail direct injection technology has help improve the vibration, harshness and noise of the diesel powerplants.

I don't think your '04 had this technology.

Just a guess though...
-Z

 

[silvershadow]

Perhaps the newer common rail direct injection technology has help improve the vibration, harshness and noise of the diesel powerplants.

I don't think your '04 had this technology.

Just a guess though...
-Z

This is most definitely the case - without boring you with the technical details of the various fuel injection technologies for diesel engines, the new common rail systems have improved performance and fuel economy as well as almost completely eliminating the "clatter" that characterised older diesel engines.

The main disadvantage of the new system so far is its current inability to use bio-diesel fuel or bio-diesel blends with more than 5% bio-diesel added.

 

[Eosman]

The Eos must have been one of the first VW Group cars to have the common rail engine fitted. The Audi A3 didn't get it until the autumn of 08 (although the cabriolet had it in the summer, at it's introduction). The VW Golf didn't get it until the release of the Mk 6 version early this year.

Oh dear, I think I must sound like an anorack.

This would explain why What Car magazine said in a review of the Eos in 06 to avoid the diesel because it was too noisey but now regard the diesel as a good choice.

 

[Eosman]

Is there anyway to confirm that my 2.0 TDI Eos has a common rail diesel engine apart from the fact that it appears to be surprisingly quiet and there is a sticker on the inside of the fuel filler flap (and the manual) telling me not to use bio diesel.

 

[ajcordeiro]

The common rail 2.0 tdi were only fitted in restyled EOS ...about July 2008 at Germany.

 

[Eosman]

Contacted VW UK. Apparently my Eos has a pumpe-duse engine. In some ways a superior fueling system to common-rail (even higher fuel pressure). A type of fuel injection unique to the VW Group but rather expensive to manufacture. Like common rail it is much quieter than a conventional diesel.

Could go into more detail but I would get bored typing it, and you would get bored reading it!

Hey Ho.

 

[cambourne7]

working a contract 75 miles away at the moment which means quite a bit more driving then I had hopped I might be doing this month.

(don't panic i am not doing 150 miles a day i am staying in a hotel during the week)

But i am getting 54 to 60 MPG on supermarket diesel in my Eos driving up a collection of A & M roads over the 2 and a half hour run.

This week i am only 25 miles away visiting another site and the roads are more A and B roads which luckily has moving traffic and i get 48 to 50 MPG at the moment.

Sat nav got me very lost going to a meeting last thursday and my slough to oxford trip should have been an hour became a 2 hour adventure and comming back my 2 hour oxford to cambridge run became a 4 1/2 hour slog as my sat nav got stuck and refused to recalculate my route when i get diverted the wrong way But i did do over 200 miles on 1/3 of a tank of fuel with some in the tank. The car i think had more get up and go by the end of the day then i did

 

[Rathbod]

"Sat nav got me very lost going to a meeting last thursday"

Louise, lot to be said for the good old fashioned map

Derek