2005 Citroen Xsara Picasso 2.0i exclusive auto
Really low mpg help please

Avatar
Sarahb81
Driver
4 points

Problem added: Jan 10, 2013 (7 years ago)
Hi all, I've had my Picasso since October 2011. It had done 40,000 miles when I bought it and I have only put 3,000 miles on it in the 15 months I have had it. It was serviced just before I bought it and has full service history.

It's a 2.0i auto, 2005.

It's always done about 27 mpg but over the last two weeks its dropped to only 17.5 mpg. I had it serviced on Monday hoping that would cure it but its still the same.

I've checked that the tyre pressures are correct and I am not a lead foot. I just don't understand why the mpg has dropped so quickly and so low.

Our local mechanic just scratched his head and told me he didn't know why as all seems ok.

Anyone have any ideas?

Car details
Car: Citroen Xsara Picasso
Variant: 2.0i exclusive auto
Model Year: 2005
Category: Steering, Suspension, Brakes, Wheels & Tyres
Replies and Fixes
Avatar
whittingehame
Legend
15,424 points

Jan 10, 2013 (7 years ago)
Did the mechanic carry out a diagnostic scan and check emissions ?
Avatar
jota1978
Top Fixer
381 points

Jan 10, 2013 (7 years ago)
It`s a long shot, but I had trouble with a 2.0ltr picasso some years ago---mpg dropped, and it turned out to be a faulty Lambda sensor. This should show up tho if you have vehicle scanned as suggested above
Avatar
Sarahb81
Driver
4 points

Jan 11, 2013 (7 years ago)
No diagnostics were carried out, they looked it over and said all seemed fine and that the service should sort it out... It hasn't so i will have to take it back. £20 petrol has given me 18 miles and now im back on the red :(
Avatar
jota1978
Top Fixer
381 points

Jan 11, 2013 (7 years ago)
Defiantly take it back and get them to scan it. Don`t let them fob you off. If still not happy, get a second opinion.
Avatar
whittingehame
Legend
15,424 points

Jan 12, 2013 (7 years ago)
If you are only getting 18miles for £20 of petrol it's a wonder the car runs !!! To do that mileage it would have to be running so , so rich .If running o.k could it be a fault on your fuel gauge registering incorrectly ?
Avatar
Sarahb81
Driver
4 points

Jan 12, 2013 (7 years ago)
Honestly I put £20 petrol in the car, dash said I had 88 miles in the tank but I've done 18 miles in it (I reset the counter to see how many I did get). I'm taking it to the garage Monday this is crazy!
Avatar
paulieone
Legend
1,726 points

Jan 12, 2013 (7 years ago)
It does sound like a faulty oxygen sensor.
Post a reply
Please login to reply.

Options for fixing the problem

Fix the problem yourself

If you need parts to do the job head over to Euro Car Parts to find the parts you need.

  • Free UK Delivery
  • 365 Day Returns
  • Free Click and Collect
Find a Local Mechanic

Use our AutoInsider Find A Specialist search, find garages and mobile mechanics near you.

Simply enter your postcode, select the required specialist areas and view your results.


AutoInsider AI Robot picture

You might find these links to parts and similar problems helpful in solving this problem.
AIBot

Having a problem with your Citroen Xsara Picasso?

Tell us about your Xsara Picasso problem

News & Updates
Win £50 every month by answering problems
Are you a mechanic or handy with car repairs?

Need an MOT after lockdown?
Find your nearest MOT Test Centre

Volvo Seat Belt Recall
Affects S60CC, V60CC, S60, XC60, V60, XC70, V70 and S80

On Social Media