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Model specific boards => Golf mk4 => Golf mk4 TDI => Topic started by: th3musicmak3r on 24 February 2010, 14:19

Title: GT TDI 150 MPG
Post by: th3musicmak3r on 24 February 2010, 14:19

Hi All, I am getting around 30-40 mpg average ona full tank covering around 400miles is this about right? I do still need to change the fuel filter and MAF sensor. Does anyone know the part code for the 150 MAF sensor? and what VW will charge.

Title: Re: GT TDI 150 MPG
Post by: Rhyso on 24 February 2010, 14:24

What tpye of journeys are you doing??

Short, start-stopping journeys that will be about right

Long distance you should be seeing 45+ easily

VW will charge around £90 for a MAF sensor on an exchange basis i.e you give your old one back

Title: Re: GT TDI 150 MPG
Post by: th3musicmak3r on 24 February 2010, 14:33

ouch is there anywhere else you can get them? or it is just best to get it from vw. Normal morning jounrney is about 15 miles

Title: Re: GT TDI 150 MPG
Post by: th3musicmak3r on 24 February 2010, 14:34

Also with diesel whats the best time to change gear? was easy with petrol.

Title: Re: GT TDI 150 MPG
Post by: Rhyso on 24 February 2010, 14:52

Quote from: th3musicmak3r on 24 February 2010, 14:33

ouch is there anywhere else you can get them? or it is just best to get it from vw. Normal morning jounrney is about 15 miles

Can try GSF or Euro Car Parts - make sure its a genuine Bosch item

Mainly dual carrigeway??

150bhp is slightly different as it does hold power for longer but I'd change up by 3000rpm as the main torque band is between 1800rpm and 3000rpm

You'll notice when you change gear at apporx 3000rpm you'lll drop back to around 2000rpm which is in the meat of the torque band

Title: Re: GT TDI 150 MPG
Post by: th3musicmak3r on 24 February 2010, 14:55

Have you got or know the part number? ya dual carrage ways mainly

Title: Re: GT TDI 150 MPG
Post by: Rhyso on 24 February 2010, 14:59

Quote from: th3musicmak3r on 24 February 2010, 14:55

Have you got or know the part number? ya dual carrage ways mainly

I don't - just ask for Mass Air Flow sensor

Not very good really - ideally you should get it diagnosed before spending money out

Title: Re: GT TDI 150 MPG
Post by: th3musicmak3r on 24 February 2010, 15:09

just sent you a pm

Title: Re: GT TDI 150 MPG
Post by: Rhyso on 24 February 2010, 15:21

Quote from: th3musicmak3r on 24 February 2010, 15:09

just sent you a pm

yeah got it mate

I assume its fairly free flowing traffic on your journey or you start / stopping every few hundred yards??

I'd find someone local to you with VAGCOM / VCDS or you're quite close to PSI Tuning in Stoke.  Get someone to do live data logging on the car to confirm if the MAF is at fault as they don't always bring up a fault code  :smiley:

Title: Re: GT TDI 150 MPG
Post by: th3musicmak3r on 24 February 2010, 15:31

Ya its pretty free flowing. Steady between 40 and 60 got a fault code at the moment of 17965. Do you know the postcode for that place in stoke? I know neil_07 has got vag com i think i mite be taking a trip to him didnt think i would of needed to when i bought the reader but the fault code i think is a bit 2 vage

Title: Re: GT TDI 150 MPG
Post by: Steve_PD on 24 February 2010, 18:28

(http://i205.photobucket.com/albums/bb74/kryptik_2010/05042009228-1.jpg) :smug:

I normally change gear at around 2k as long as am not in a rush

Title: Re: GT TDI 150 MPG
Post by: th3musicmak3r on 24 February 2010, 18:56

u had a remap aswell though so wont your car run better?

Title: Re: GT TDI 150 MPG
Post by: Steve_PD on 24 February 2010, 19:10

you get more mpg with a map, as long as you dont floor it every where

Title: Re: GT TDI 150 MPG
Post by: th3musicmak3r on 24 February 2010, 22:44

well just filled up with bp ulimate and only got 47mpg on a 22 mile drive that dont sound rite most of it was motorway at 60-70

Title: Re: GT TDI 150 MPG
Post by: nadlad on 25 February 2010, 00:10

lol 65 mpg steve? whats was that a 1 mile free wheel trip, i usually do 80 and i get a constant 52- 53 mpg every time which si more than enough, if i do 70 ave seen it over a long run get to around 57 but over that u gotto be doign soem serious coasting and for the time it takes to get that high mpg u gotta be oen boring person.

Title: Re: GT TDI 150 MPG
Post by: Steve_PD on 25 February 2010, 18:15

65ish with no hard acceleration and over 50 miles
my boss ha got a 130 and he sees 70 mpg regularly

Title: Re: GT TDI 150 MPG
Post by: nadlad on 26 February 2010, 01:04

Quote from: Steve_PD on 25 February 2010, 18:15

65ish with no hard acceleration and over 50 miles
my boss ha got a 130 and he sees 70 mpg regularly

grandad! i see why u need xenons now just in case u drive too fast and hit someone............pass em over to me .

Title: Re: GT TDI 150 MPG
Post by: th3musicmak3r on 26 February 2010, 08:49

fancy getting back to the topic guys.

Title: Re: GT TDI 150 MPG
Post by: Rhyso on 26 February 2010, 09:06

Have you reset the code??

http://wiki.ross-tech.com/index.php/17965/P1557/005463

Title: Re: GT TDI 150 MPG
Post by: Tory on 26 February 2010, 09:13

i get about 500 miles out of a tank but thats a real variation of driving, i work about 2 miles from where i live, so that will drain my fuel stop starting, but then i travel 145 miles to see my bf every other weekend, so thats mainly m1 miles, generally do about 80mph, and get 54-55 mpg... then my bf drives it and all my hard work of getting the mpg up is ruined

Title: Re: GT TDI 150 MPG
Post by: asif on 27 February 2010, 22:39

Oh no the mpg convo :grin: really grinds my gears :)

I get a sh*ty 33mpg around town and on motorway trips I get between 45 to 49, 50mpg at a real push if i'm lucky.

MAF changed didn't make any difference, scanned up and no faults.
I'm gonna get a health check done by R-tech at some point just getting the peenies together.

Mate from a 150 you should be getting much better MPG from the runs you mentioned especially the dual carriage way doing 40-60mph.

Let us know how you get on.