MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: JTI on June 25, 2019, 07:36:03 pm

Title: What Is This & Why Is It Melting?
Post by: JTI on June 25, 2019, 07:36:03 pm
So car was misfiring 2 weeks back and giving a p0304 code. Changed the spark plugs and it worked fine until this week when it started again but worse, giving a p0302 code. Naturally tried changing the coil packs but made zero difference.

When I was changing them I noticed this plug (see below) has almost completely melted through. Could someone tell me please what this is/does please and if it could cause my symptoms? Thanks

(https://i.ibb.co/t3hVbz4/20190625-173626.jpg)

Zoomed out...

(https://i.ibb.co/B3Vt92Y/20190625-173630.jpg)
Title: Re: What Is This & Why Is It Melting?
Post by: Saintsteve on June 25, 2019, 08:04:49 pm
It’s proberly melting because I’m guessing it started life with a crack in it, and the melt is the Arc’ing going on ?
Title: Re: What Is This & Why Is It Melting?
Post by: bobby_fodge on June 25, 2019, 08:13:37 pm
Idle control valve or something like that.
Title: Re: What Is This & Why Is It Melting?
Post by: MIJ_JAGGER on June 25, 2019, 09:06:27 pm
Camshaft adjustment valve N205
Title: Re: What Is This & Why Is It Melting?
Post by: JTI on June 25, 2019, 09:22:29 pm
Quote from: MIJ_JAGGER on June 25, 2019, 09:06:27 pm
Camshaft adjustment valve N205

Thank you! @MIJ_JAGGER (https://www.mk5golfgti.co.uk/forum/index.php?action=profile;u=16715) yep that's the one. Pelican parts has a guide on how to fix which seems fairly straightforward.

Any ideas on a part number please? Seems that it's either 06F109257C or 06F109257A but they are quite different in price.
Title: Re: What Is This & Why Is It Melting?
Post by: bobby_fodge on June 25, 2019, 09:31:29 pm
Quote from: JTI on June 25, 2019, 09:22:29 pm
Quote from: MIJ_JAGGER on June 25, 2019, 09:06:27 pm
Camshaft adjustment valve N205

Thank you! @MIJ_JAGGER (https://www.mk5golfgti.co.uk/forum/index.php?action=profile;u=16715) yep that's the one. Pelican parts has a guide on how to fix which seems fairly straightforward.

Any ideas on a part number please? Seems that it's either 06F109257C or 06F109257A but they are quite different in price.

i think the last letter is the revision number so the one ending in C is a newer version than the one ending A, like I say, that's what I think.