MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: neg on December 29, 2008, 11:16:34 pm

Title: Replace spark plugs recommendation - every 15-20k
Post by: neg on December 29, 2008, 11:16:34 pm

VW replaced the spark plugs on the 2.0T every 40,000miles, if your remapped I would highly recommend as preventative maintenance you swap the plugs every 15-20,000 miles.

I was getting a random multiple missfire at high-ish speeds during WOT in 5th/6th, everything seemed fine in the lower gears.  I did the obvious diagnosis with coilpacks which didnt fix it so went onto spark plugs - although the one's in there having done only 15k miles!  Anyway swapped and now the car seems to be running fine again with no hiccups so far.

All 4 removed plugs look the same and dont appear to look 'bad' in any way.

FYI, plugs are £9.50 + vat each from VW

Title: Re: Replace spark plugs recommendation - every 15-20k
Post by: Greeners on December 29, 2008, 11:29:39 pm

Cheapish fix then Neg  :happy2:

Sound advice though as the engine will be working harder than the consumables were designed for.

Title: Re: Replace spark plugs recommendation - every 15-20k
Post by: RedRobin on December 29, 2008, 11:29:53 pm

....

JKM recommended I change plugs every 20k miles because my car is remapped. Standard Mk5 GTI VW plugs are fine.

:happy2:

[neg - How's your turbo issue?]

Title: Re: Replace spark plugs recommendation - every 15-20k
Post by: john_o on December 30, 2008, 08:31:46 am

Good advice  :happy2: cheers

Title: Re: Replace spark plugs recommendation - every 15-20k
Post by: The wheel man on December 30, 2008, 09:27:07 am

Good call.  After reading ive checked that mine were changed at my 40k service and they were not!!!  Hmmmmmm

Title: Re: Replace spark plugs recommendation - every 15-20k
Post by: ukdub on December 30, 2008, 01:39:23 pm

Quote from: neg on December 29, 2008, 11:16:34 pm

VW replaced the spark plugs on the 2.0T every 40,000miles, if your remapped I would highly recommend as preventative maintenance you swap the plugs every 15-20,000 miles.

I was getting a random multiple missfire at high-ish speeds during WOT in 5th/6th, everything seemed fine in the lower gears.  I did the obvious diagnosis with coilpacks which didnt fix it so went onto spark plugs - although the one's in there having done only 15k miles!  Anyway swapped and now the car seems to be running fine again with no hiccups so far.

All 4 removed plugs look the same and dont appear to look 'bad' in any way.

FYI, plugs are £9.50 + vat each from VW

Same thing happened to me as well.  Good advice  :happy2:

Title: Re: Replace spark plugs recommendation - every 15-20k
Post by: cmdrfire on December 30, 2008, 03:14:58 pm

Replace my plugs every 20k, and my coils every 40k (had them done a bit early at my 77k service). Oil every 5-8k and DSG fluid every 30k :P
She's an expensive girl... even the gf isn't as bad as baby :P

Title: Re: Replace spark plugs recommendation - every 15-20k
Post by: neg on December 31, 2008, 11:10:31 am

Quote from: RedRobin on December 29, 2008, 11:29:53 pm

neg - How's your turbo issue?

Still questioning it, made a few changes - plugs, filler cap etc so need to get it checked out again and do some logs in the new year.

Title: Re: Replace spark plugs recommendation - every 15-20k
Post by: WhiteGTI on December 31, 2008, 02:53:18 pm

Good advice Neg!

I will look into this myself soon!  :happy2: