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41
Golf mk6 / Re: Any ideas what this could be please?
« Last post by Nino on 30 November 2025, 12:36 »
Yeah, good shout.

You clearly had other issues with the PCV as well so just as well you got that sorted.
42
Golf mk8 / Re: DSG Gearbox oil change.
« Last post by Exonian on 30 November 2025, 12:25 »
Thanks for the opinions chaps. Will get mine booked in.

For an owner fastidious enough to change the oil every 6 months it’s a good move to get the gearbox oil changed out too. If long term ownership is in mind it’s a wise investment for its fairly modest cost.
43
Golf mk8 / Re: Mk8.5 gti key battery no warning!
« Last post by Exonian on 30 November 2025, 12:18 »



At just over 4 months old I had this warning pop up today.
Faraday pouch required I think!

In a fraction under 5 years of mk8 & 8.5 ownership I’ve had a mixture of batteries lasting ages then failing without warning, and gradual deterioration with warning messages flashed up.
I’ve tried a variety of batteries too, Panasonic (OEM) & Duracell seem to last reasonably well.


44
Golf mk6 / Re: Any ideas what this could be please?
« Last post by Norwichdaz on 30 November 2025, 02:43 »
Just for now etc in just ordered a wastegate clip see if that helps lol
45
Golf mk7 / Re: Hot air blowing only from passenger vent issue
« Last post by 2007GTI on 29 November 2025, 20:48 »
Yes, it's a 1 day job to change the heater matrix, VW stealers are taking the pi$$.
46
Golf mk7 / Re: Hot air blowing only from passenger vent issue
« Last post by SteveAWOL on 29 November 2025, 11:25 »
Maybe query that they've turned you down under the All-in plan, I've got the same issue and mine is going in on Wednesday to my dealer and all of the work is being covered with the All-in warrantee.  They have allocated three days so fingers crossed I'll have it back on Friday although they did initially have it back twice to test and take readings which they submitted before okaying the work.

I’d check the small print in the All In warranty. If you can’t see the heater matrix is excluded then I’d ask the dealer to show you where in the warranty documentation it’s excluded.

Marshalls closed my local dealership (who’d done a few previous repairs under warranty) in the spring, so I had to schlep about 45 minutes to nearest VW branch. I might’ve to trek up to the larger branch in Milton Keynes for a 2nd opinion if it is such a common fault which is typically covered then.

https://m.youtube.com/watch?v=WjvPcXs9muo&pp=ygUXIFZ3IGdvbGYgaGVhdGVyIHByb2JsZW0%3D

Interesting watch and may help with your diagnosis

I was also told it’s a 3 day job by dealership but local independent VW garages seem to think the matrix can be replaced in a day and judging by that video the latter seems realistic.
47
Golf mk7 / Re: Hot air blowing only from passenger vent issue
« Last post by SRGTD on 29 November 2025, 10:34 »
Having a similar issue with my GTI whereby the passenger side vents can blow out nice hot air but all those on driver’s side won’t get any more than tepid.

Tried doing the A/C reset trick but that didn’t make any difference.

Took it to dealership who said that heater matrix needs replacing but that wouldn’t be covered by the All-In extended warranty; unlike the thermostat housing which got replaced a few years ago when there was a coolant leak and they removed the dreaded silica bag.

I’d check the small print in the All In warranty. If you can’t see the heater matrix is excluded then I’d ask the dealer to show you where in the warranty documentation it’s excluded.
48
Golf mk6 / Re: Any ideas what this could be please?
« Last post by Norwichdaz on 29 November 2025, 10:12 »
Yeh just depends if its.fully sealed unit, as seen on some obviously a little easier if its outside the turbo...looking online for a turbo for it looks pretty sealed i think  :undecided: :nerd:
49
Golf mk7 / Re: Coolant silicon bag
« Last post by Rudedog on 29 November 2025, 10:08 »
I'm having my matrix replaced next week at my dealers so I'm hoping they will have to drain the whole system which means they'll have to replace with G12 Eco.  As I've mentioned I took my bag out within 6 months of buying my car over 5 years ago.
50
Golf mk7 / Re: Hot air blowing only from passenger vent issue
« Last post by Rudedog on 29 November 2025, 10:04 »
Maybe query that they've turned you down under the All-in plan, I've got the same issue and mine is going in on Wednesday to my dealer and all of the work is being covered with the All-in warrantee.  They have allocated three days so fingers crossed I'll have it back on Friday although they did initially have it back twice to test and take readings which they submitted before okaying the work.

 
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