Sky InsuranceEM Tuning
Results 1 to 9 of 9
  1. #1
    Neutral

    Status
    Offline
    Join Date
    Mar 2010
    Posts
    32

    possible causes of poor fuel consumption?

    2.0 tdi

    theres deffo summit not right with my car.

    if i drive like a granny i get 30 mpg, i'd say normal driving would produce 25 -28 mpg which i dont care wether its town driving or not, thats terrible.

    my 280 bhp astra vxr got 25 and i used to drive that hard!

    now apart from getting shot of the car, what could be possible reasons for this? the car has full history although the last service wasnt by audi.

    ive just ran some fuel system conditioner through it.

    the car seems to drive ok, and is quite nippy although if i open the throttle slightly at tick over the motor seems to miss slightly. this only happens at about 1200 rpm and is fine otherwise.

    wouldnt the engine light come on if one of the engine components had failed?
    Last edited by andy16vturbo; 30th March 2010 at 09:25.

  2. # ADS
    ADS
    Join Date
    Always
    Posts
    Many
     
  3. #2
    1st Gear

    Status
    Offline
    Join Date
    Dec 2009
    Location
    London
    Posts
    203
    According to my dis, I'm getting 18mpg and I don't drive it hard, no more than 3000 rpm. Mine too has full service, and last service was 2 months ago. Gettin the fuel filter replaced this week, and got some reddex stuff to put in, apprantly it improves mpg, so fingers crossed.

    Mines a 3.0 multitronic btw, what's yours?
    2003 Black 3.0 Multironic Cabriolet
    18" RS6s, 6000k HID conversion, Led interior upgrade.
    ----------------------------------------------------------------------
    YE56 NDY reg for sale.

  4. #3
    1wheelonly's Avatar
    cabriolet

    Status
    Offline
    Join Date
    Oct 2007
    Location
    The Lounge
    Posts
    2,062
    25-28 is all i get, sounds about right, mines an 18T
    LOTS DONE, LOTS SPENT !!!!

  5. #4
    Neutral

    Status
    Offline
    Join Date
    Mar 2010
    Posts
    32
    mine's a 2.0 tdi boys. Wouldn't mind the fuel figures if it was petrol

  6. #5
    Neutral

    Status
    Offline
    Join Date
    Mar 2010
    Posts
    32
    mine's a 2.0 tdi boys. Wouldn't mind the fuel figures if it was petrol

  7. #6
    jwhat's Avatar
    3rd Gear

    Status
    Offline
    Join Date
    Oct 2006
    Location
    Ireland
    Posts
    524
    How many miles are on the car? When was it last serviced? Do you find there is a lot of black smoke when on the throttle? Has the car been mapped? You could have a loose/split boost pipe or vacuum pipe. Can you get someone near you to do a vcds scan?

  8. #7
    Neutral

    Status
    Offline
    Join Date
    Mar 2010
    Posts
    32
    car is a b7 2.0 tdi. 107 k on clock, full history. Serviced at 100k.
    No smoke, drives sound most of the time but hesitates now and again.

    Turbo is good, minimal play on the shaft.
    My mate has vagcom but not sure its compatible with my car. Isnt the b7 can bus?
    Last edited by andy16vturbo; 30th March 2010 at 11:08.

  9. #8
    jwhat's Avatar
    3rd Gear

    Status
    Offline
    Join Date
    Oct 2006
    Location
    Ireland
    Posts
    524
    There is a vcds section on here with a map, someone with the right one may be able to help you. If nothing comes up on the scan I'd take it to a good indy to diagnose it.

  10. #9
    Neutral

    Status
    Offline
    Join Date
    Mar 2010
    Posts
    32
    well this week i've cleaned the maf, removed the egr valve, throttle body and inlet manifold and give them a good clean and i've just changed the fuel filter so we'll see if all this has a positive affect.

 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO