MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: samiul11 on March 31, 2015, 04:35:13 pm

Title: Drop in MPG
Post by: samiul11 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:

Title: Re: Drop in MPG
Post by: AndyBrown on March 31, 2015, 04:39:41 pm

Could be a sticking caliper?

Title: Re: Drop in MPG
Post by: samiul11 on March 31, 2015, 05:24:07 pm

Quote from: AndyBrown on March 31, 2015, 04:39:41 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?

Title: Re: Drop in MPG
Post by: KieranED30 on March 31, 2015, 05:37:10 pm

^^^ that, excessive brake dust and squeezing when setting off  :happy2:

Title: Re: Drop in MPG
Post by: longbelly 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

Title: Re: Drop in MPG
Post by: samiul11 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?

Title: Re: Drop in MPG
Post by: GrayMK5GTI 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)

Title: Re: Drop in MPG
Post by: OSB 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!

Title: Re: Drop in MPG
Post by: samiul11 on April 03, 2015, 01:48:19 pm

Thanks guys!