My 2002 L&K 110 TDI estate is giving me about 37 mpg. The car has covered 92000 with a full service history. It drives fine, the turbo spins up well and makes the correct whistles. The consumption figures are my own and not the cars computer readout, £15 of diesel gives around 85 miles. A mixture of dual carriageway and town driving but mostly town. Does anybody have any thoughts about whether this is about right?

37 is rubbish. I would expect low 50s or high 40s for your combination of driving unless you are doing very short trips and the engine never gets warm.

CTS or blocked air filter maybe. Any fault codes?

Well in my 2008 octavia I get 49+ around town easily seen 50 a few times and on the mway I get 55mpg so sure there's something these figures are the cars figures not mine but saying that I get 70miles from £10 if that helps

CTS or blocked air filter maybe. Any fault codes?

Dont think its the air filter or even fuel filter as i specify these to be replaced every year. However (IF I KNEW WHAT THE THE CTS WAS ....LOL) it may be that. There must be something wrong then if im getting 10 mpg less than other people with the same car. Its going in for its service nxt month so hopefully the problem will be found then. Many thanks for the replys guys.

Oooooooooooooooooo thats low.

Even with some city driving I have to do on times I can still get between 45+mpg. Motorways and duals I can see low 50 to high 40 mpg figures.

As above, get the car looked at.

PW

CTS = coolant temperature sender. Common to fail on this era VAG stuff, and is replaced with a revised part. Pretty cheap to replace. Make sure to get the old rubber gasket out and replace that (often comes off the sender unit/sensor and stays behind in the housing.

You will lose a little coolant, but not much.

CTS has a little sliding clip holding it in place. Get new CTS with gasket in place ready. Remove loom connector, press down on switch, remove clip. Remove sender unit. Check you got the O-ring. Slap new one in, press down, replace clip. Bob's yer uncle.

ONLY use genuine VAG/Skoda parts for this though. Aftermarket are prone to even more failures than the originals.

Even thermostat might be an outside possibility. What's your temperature guage doing normally?

Temperature guage is fine but air con stopped working last year, Skoda said it was the compressor.....£500, so i said dont bother.! The heater reaches temperatures that will really burn your hand if you place it in front of a heater vent, much hotter than i can remember, maybe that could have something to do with it. Star Performance, the VW group tuning specialist are only 5 miles away and they are at the top of there game at fixing such problems but they are extremely expensive so all advice is greatly appreciated. Thanks to all.

Its worse than i thought! £20 got me 103 miles. About 26 miles was with a trailer on the back but i was driving like Miss daisy. My calculations give me 34.3 to the gallon.......now thats CRAP! Repairs time next week me thinks.

If it is any help i think i am having similar issues with my fabia vrs on a 54 plate. I am only getting 40mpg from it if i drive it really carefully. I have an obd reader that seems to take a lot longer to report getting to 90 than the dials do. I don't know if that shows a dodgy CTS or not, if you have access to a reader it may be able to help point you in the right direction.

Wish i could get 40 mpg! LOL. A mate at work has just purchased an expensive Snap-on fault reader so hopefully that will find a fault.....fingers crossed.

It'll need to have VAG specific codes. Not sure whether the Snap-on systems have those or not.

Snap-On stuff will have it.

Which one did he get??

Just so you know, got to 51.2 MPG (average) driving at 70+/- mph on cruise control......................... Sooooooo yea I think somethings up.

What engine is it sorry if its already been covered 1.9 tdi??

What engine is it sorry if its already been covered 1.9 tdi??

Scroll to the top of the page and all shall be revealed :sun:

Its a 1.9 tdi 110 bhp. Drove home from work today like miss Daisy to see what i could get out of it. Within just 8 miles of driving very carefully on a mixture of roads ( but no dual carriageway ) i got it up to 52.5 mpg! However im positive that per £10 of diesel i will only get 50 miles which doesnt tie in with the dashboard computer. I take it that the computer doesnt measure the fuel used but takes its measurements from the way the accelerator is used. I spoke to an old friend this evening and he laughed because he recons that his R32 average is touching 50 miles to a tenner as well!!!

This is the same as my vrs. Onboard says 50-60 depending on how I drive. Brim to brim says 40, I'm convinced there is a problem with it, the indie I bought it from says no and it must have been remapped, I disagree and fully intend to don my deerstalker hat and solve the problem. I've had the coolant light flash up a couple of times on mine too, coolant level in the tank is fine though so I'm keeping an eye on that. I'll get a quote for a cts at some point this weekend and try that, maybe.

Edited 21 February, 201313 yr by dancingbear84

8 miles, ha, I bet the engine is still almost cold for this trip! You need to check it out for some longer trips. I do a 120 mile round trip to work and I suspect my trip computer is pretty close (country twisty A-roads)

Dashboard computer is irrelevant anyway. They're figures based on a brand new, fully serviceable vehicle in perfect working order, and calculated by revs/vacuum/speed. Also, there is usually quite a bit of speedo overread. You're actually doing slightly less miles than you think you are.

Best bet is get your diesel on a Motorway. Do 100 miles or more work out from that.....

OR

Have a BBQ with the car in anger .....

My mothers Audi A3 1.8T (2009) will do an average of 39mpg (she still doesnt understand the concept of changing gears) :bandit: