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Mk5 General Area / Re: Known Issues
« Last post by GVK on Today at 04:43:29 pm »
As well as the above, the intake valves/ports can get gummed up with carbon due to the direct injection set up.

Injectors are a weak point causing misfires

I had an Edition 30 until 4 years ago, I also had issues with:
passenger door lock
ABS sensors and hubs (rear)
Intercooler hose fitting, required new hose
coil packs and plugs after remap.

Great cars though especially with a map to give over 300hp (Edition 30)

A recent post has reminded me to pay attention to rust on sills and wings, also tailgate!
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Mk5 General Area / Re: Known Issues
« Last post by dennis10 on Today at 03:29:36 pm »
A few things to be aware of:

Check cam follower condition - this is a replaceable tappet that runs the high pressure fuel pump via the inlet cam lobe - they can wear through and damage the cam and HPFP if not properly maintained.

Inter-cam chain and tensioner (in particular) can wear and need to be inspected regularly after 100k miles or if noisy and replaced.

Diverter valve diaphragm often split causing boost issues.

Also PCV valves fail as well as old hoses, cheap to replace though

Some GTIs do consume some oil.  Later models are better from my research and in particular the Edition30 model, which I own, rarely has oil consumption issues.  I use 5w40 oil and it doesn't use a drop between oil changes

Top mounts on mk5 Golfs are horribly designed and if they've not been replaced in 15 to 20 years they are a nightmare to get off if needing to replace the suspension.  The 3 captive nuts on each side can become "uncaptive" and spin freely, meaning you cant get the damn things off and have to cut the nuts off in limited space underneath, or from the bolt at the top (not something I'd enjoy repeating)

I'm sure others will chime in with additional niggles, but those are most of the ones I've kept an eye on in my ownership.

If you find yourself with the budget to stretch a bit further, I'd recommend the Edition30 BYD engined GTI, much more potential out of the box and uprated in quite a few areas compared to the standard GTI engine.  I am considering selling mine in the near future as I want to move back to a VR6, in case you're interested!
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Mk5 General Area / Known Issues
« Last post by JW on Today at 11:48:49 am »
New member, so hello to all.

Very likely to be getting into a Mk5 GTi very soon and wondered if there are any known issues with these?

I was a long-time Mk4 owner (sadly had to sell due to ULEZ) and have had lots of VAG group cars.

I know that at a certain point VAG forgot how to make engines for a while - VW and Audi both had issues with timing chains/tensioners and piston rings/oil consumption, etc.

Just wanted to check there's nothing inherently silly like those on a Mk5 GTi... Are these timing belt with just a chain for the cams, as on the Mk4 1.8T? Any oil consumption/piston ring issues to watch out for?

And just anything else I should be looking for, or wary of, on these models in particular?

Any advice or experience would be greatly appreciated :happy2:
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Mk5 General Area / Re: What did you and your MKV do today?
« Last post by rxpx69 on Yesterday at 12:57:38 am »
Found this today  :confused:



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Mk5 General Area / Re: PRNDS Flashing Issue on my Golf GTI Mk5
« Last post by Lewo on November 17, 2025, 10:46:19 pm »
https://www.mk5golfgti.co.uk/forum/index.php/topic,134284.msg1163836.html#msg1163836
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Mk5 General Area / Re: PRNDS Flashing Issue on my Golf GTI Mk5
« Last post by Lewo on November 17, 2025, 10:41:15 pm »
Had this on mine last year. Think you're right about the mecatronics.
I ended up selling my car as I'm no good with the spanners.
I'll try and find my old thread and link it.
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Members Rides / Re: Sunset Red 1.4 TSI(TFSI) GT Sport - daily drive & track car
« Last post by GVK on November 17, 2025, 02:33:31 pm »
Great pictures Rex  :happy2:
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Mk5 General Area / PRNDS Flashing Issue on my Golf GTI Mk5
« Last post by Jayko on November 17, 2025, 07:54:04 am »
PRNDS Flashing Issue on my Golf GTI Mk5

Hey everyone, hoping someone might have some advice.

Got in my car earlier and it wouldn’t start at first, but after a few tries it did. When it started, I couldn’t get it into gear at all. I used the manual shift unlock to move it into drive, but the car still wouldn’t move and the PRNDS lights started flashing on the dash.

It’s a 2006 Golf GTI DSG with just over 180,000 miles. Has anyone had this happen before? Do you think it could be the mechatronic unit or something simple like the brake switch?

Any advice or recommendations for decent gearbox or DSG specialists around St Albans England would be much appreciated. Thanks everyone!
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Mk5 General Area / Re: What did you and your MKV do today?
« Last post by mjmallia on November 16, 2025, 06:19:10 pm »
Ordered a replacement interior passenger door grab handle, and to my surprise the GTI now has parts classified as classic  :laugh: so a longer waiting time with some mk5 parts now




Like new again


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Members Rides / Re: Sunset Red 1.4 TSI(TFSI) GT Sport - daily drive & track car
« Last post by rex on November 16, 2025, 08:55:52 am »
So, as I was saying, more information about the latest track day...
The car performed great, once more. I still have the random missfire issue that the car has been plagued with since the start but it did not interfere with the having fun part. Not being able to rev the engine past 6k for the fear of missfire will have an impact on the time. Thankfully I've had faster cars so the "time" part is irrelevant. The "fun" part is all that matters.
And, as I am sure you all know, it is loads more fun (but also dangerous) to drive a car fast in the rain. I would have pushed more (and maybe had more moments like 3:25) but the barriers are quite close and I didn't feel like crashing. I am still recovering from my trackday accident and I am taking it one step at a time.



The car is equipped with Michelin Pilot Supersport which should be better than 4S in the dry and worse in the wet.
The car's balance is great, just the way I like it. It is predictable and a bit tail happy - because of the thicker H&R sway bar on the rear compared to the front. I really love this car!
Next week it's the car's 18th birthday and I plan to continue the mods in the years to come - but nothing radical planned at the moment...

Some photos from the trackday of the, now, old lady  :driver:











Cheers!
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