dieselreek
Well-Known Member
can anyone on here have any idea why my td5 disco auto only gets roughly 18.5 mpg and it is not towing anything
dieselreek
Well-Known Member
had new maf sensor . air and fuel filters , gearbox oil and filter change new brake calipers and pads recent mot passed emisions with flying colours
Turboman
Mab An Gov
Standard tyres and suspension? And driving style?
I haven't had a Td5, but I can get that out of my v8 Auto, so I would think that is way under what you should get.
dieselreek
Well-Known Member
Turboman
Mab An Gov
Cant be too bad if it MOTd ok.
How long have you been driving it?
And what about the trans, does it seem to change up through all the gears ok?
dieselreek
Well-Known Member
got it in january, it seems to hang a bit before going into top gear but at first i was putting it down to being first auto i had ever driven.
after oil and filter change it improved but still seems to hang a bit before going into top
after oil and filter change it improved but still seems to hang a bit before going into top
Turboman
Mab An Gov
Did it always do that mileage, or has it got worse?
If it doesn't change up all the way it will hit the fuel mileage on the open road.
dieselreek
Well-Known Member
it has been crap milage since i got it
sierrafery
Well-Known Member
What size tyres? ... if they are more than 10% bigger you can expect anything, anyway, after a longer drive check the handbrake drum carefully with your hand and if it's hot there's the problem cos it means it puts load on the powertrain, also ckeck the wheels all around to rule out erratic braking on one axle
dieselreek
Well-Known Member
tyres are 255/55 r18 general grabbers at2 have fitted new calipers just before mot brakes not grabbing handbrake off it will roll in neutral on the slightest slope
janderson41
Active Member
Couple of points. How are you measuring fuel consumption?
Slow take up to top gear is more likely to be lock up ,which is usually about 52/55mph.
Also from cold auto box is designed to hold onto 3rd to allow warm up quicker.
My Td5 auto does 23/24 locally and about 30 on a long run.
Also can you change your location to more specific location,then possibly someone near could help.
And welcome to Td5/auto ownership. I love mine,even if it costs me. Had to fit a new auto box 18 months ago.
Hope this helps
Jim a
1996 Disco 1 auto (gone)
2002 Disco 2 auto
Slow take up to top gear is more likely to be lock up ,which is usually about 52/55mph.
Also from cold auto box is designed to hold onto 3rd to allow warm up quicker.
My Td5 auto does 23/24 locally and about 30 on a long run.
Also can you change your location to more specific location,then possibly someone near could help.
And welcome to Td5/auto ownership. I love mine,even if it costs me. Had to fit a new auto box 18 months ago.
Hope this helps
Jim a
1996 Disco 1 auto (gone)
2002 Disco 2 auto
godzilla84
Active Member
That's pretty worrying MPG. My manual gets about 30-32 if driven sensibly and I have 235/85/16 BFG A/T on it and a winch and bumper etc so I have a fair bit of extra weight on board too. On my last check I got 22ish but I've been caning it recently and it's way overdue a service.
tulipandthistle
Active Member
I get 30 MPG with driving calmly, this goes down to 24 MPG when flooring it. I drive a manual Td5 on General Grabber At2.
No diesel leak any where? Injector seals? Are your injectors programmed?
The first thing I did when I bought my Td5 was buying a nanocom. The best thing I did.
No diesel leak any where? Injector seals? Are your injectors programmed?
The first thing I did when I bought my Td5 was buying a nanocom. The best thing I did.
dieselreek
Well-Known Member
engine running sweet not drawing air in fuel system, will injector programming have to be done by a landy agent
tulipandthistle
Active Member
When I replaced the injectors due to one breaking (literally breaking) I had to program the injector in. It runs without no bother but I think it could affect the Fuel consumption, however I could be wrong. Others or Sierrferry will know better than me. It is very simple to do with a nanocom
sierrafery
Well-Known Member
Injector coding would not affect the consumption IMO, it affects driveability at high revs(above 3000rpm)
