Make a donation

Author Topic: Drop in MPG  (Read 1559 times)

Offline samiul11

  • Always Involved
  • ****
  • Thank You
  • -Given: 9
  • -Receive: 15
  • Posts: 347
    • Email
Drop in MPG
« on: March 31, 2015, 04:35:13 pm »
Hi guys i mainly do city driving and i get around 23mpg with mixed driving however recently it has dropped to 17 mpg and the computer takes away 5 miles every mile or so  :scared: is this to do with the pcv and would a pcv revamp fix the issues? Thanks any help is appreciated  :happy2:

Offline AndyBrown

  • Won't Shut up.
  • *****
  • Thank You
  • -Given: 23
  • -Receive: 17
  • Posts: 512
    • Email
Re: Drop in MPG
« Reply #1 on: March 31, 2015, 04:39:41 pm »
Could be a sticking caliper?

Offline samiul11

  • Always Involved
  • ****
  • Thank You
  • -Given: 9
  • -Receive: 15
  • Posts: 347
    • Email
Re: Drop in MPG
« Reply #2 on: March 31, 2015, 05:24:07 pm »
Could be a sticking caliper?


How would i know if i have a seized caliper? Only thing i can think of is check each wheel and see if any of them are really hot?

Offline KieranED30

  • Always Involved
  • ****
  • Thank You
  • -Given: 1
  • -Receive: 12
  • Posts: 345
  • Burning Rubber Since 16th Febuary 2012
    • Email
  • My Ride: http://www.mk5golfgti.co.uk/forum/index.php/topic,89941.0.html
Re: Drop in MPG
« Reply #3 on: March 31, 2015, 05:37:10 pm »
^^^ that, excessive brake dust and squeezing when setting off  :happy2:

Offline longbelly

  • Just Arrived
  • **
  • Thank You
  • -Given: 5
  • -Receive: 0
  • Posts: 18
Re: Drop in MPG
« Reply #4 on: March 31, 2015, 09:01:27 pm »
We had a sticking caliper on our focus, sounds similar to a wheel bearing drone and got very hot

Offline samiul11

  • Always Involved
  • ****
  • Thank You
  • -Given: 9
  • -Receive: 15
  • Posts: 347
    • Email
Re: Drop in MPG
« Reply #5 on: April 01, 2015, 06:20:05 pm »
Hmm went for a drive today and my brakes seem fine and cant feel any heat coming from them  :sad1: any other ideas?

Offline GrayMK5GTI

  • Global Moderator
  • Just look at my post count
  • *
  • Thank You
  • -Given: 125
  • -Receive: 248
  • Posts: 4165
Re: Drop in MPG
« Reply #6 on: April 02, 2015, 11:55:00 am »
Dont get a PCV revamp, just replace with the latest OEM PCV (if that is whats causing your problem)
NOW: 2015 Golf R DSG 5 Door, Lapiz Blue, 19s, Discover Nav, Reversing Camera
GONE:2007 Black GTI Edition 30 3dr

Offline OSB

  • Always Involved
  • ****
  • Thank You
  • -Given: 32
  • -Receive: 17
  • Posts: 406
Re: Drop in MPG
« Reply #7 on: April 03, 2015, 01:40:49 pm »
As above. Check/change PCV with OEM
Check / replace air filter
Check / replace spark plugs.
These are relatively cheap and easy to do.

Then, if that lot doesn't work - get a VCDS scan and se if it throws up any faults.

Good luck!

Offline samiul11

  • Always Involved
  • ****
  • Thank You
  • -Given: 9
  • -Receive: 15
  • Posts: 347
    • Email
Re: Drop in MPG
« Reply #8 on: April 03, 2015, 01:48:19 pm »
Thanks guys!