GolfGTIforum.co.uk
Model specific boards => Golf mk6 => Topic started by: bad-vw-boy on 15 June 2026, 15:19
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Good afternoon , Just recently got my hands on a lovely mk6 edition 35 2012, loving the car however i have noticed especially when cold that the car has a slight lumpy idle, reading on different platforms it could be due to a number of issues the car has 79k on the clock and a f/s/h just wondering if anyone has any advice or recommendations, also what fuel are people using?
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Congrats on the Edition 35 as a 35 owner myself, I know how special they are. A slight lumpy idle when cold isn't uncommon on these, especially as they're direct-injection engines and can be a bit rougher until they're up to temperature.
At 79k miles, a few things I'd be looking at are:
* Spark plugs and coil packs (worth checking when they were last replaced)
* Carbon build-up on the intake valves, which can cause a slightly uneven idle
* PCV valve condition
* Any vacuum leaks
* Fuel injector condition
If it's only for the first minute or so from a cold start and then settles down completely, I wouldn't panic. If you've got access to VCDS/OBDeleven, it would be worth checking for any stored fault codes and looking at misfire counts on each cylinder.
As for fuel, run 99 RON (Tesco Momentum or Shell V-Power) as the Edition 35 was designed around higher-octane fuel. It'll run on 95, but many find it feels a bit smoother and more responsive on 99.
Also, at that mileage I would expect the cam follower to have been replaced.
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Thanks so much for the reply , i am no stranger vo vws, but this is my first 35 edition having owned a mk5 as well i appreciate they share a lot of similar components can i ask what coil packs you would recommend along with spark plugs, and do you have any of those front grill edition 35 badges .
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Thanks so much for the reply , i am no stranger vo vws, but this is my first 35 edition having owned a mk5 as well i appreciate they share a lot of similar components can i ask what coil packs you would recommend along with spark plugs, and do you have any of those front grill edition 35 badges .
Honestly, I would recommend only using OEM, None of this R8 crap or APR coils you don't need any of that crap unless you are running big power. its all a gimmick.
Just go to VW, parts departments and order OEM if they are due.
Yes I still have a few left, they are £20 posted PayPal Friends or you cover fees.