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I’ve had an APR stage 1 ECU tune on my 2017 GTI since 2020 with zero issues. I don’t track it. Just change plugs every 20k miles and have VW use OEM plugs.
I changed the spark plugs in my nieces 2.5L VW Jetta because it was idling at 1300rpm. Rock solid idle at 700rpm afterwards. Easy way to save some gas.
Changing the spark plugs, spark plug wires, ignition coil and the coolant temperature sensor fixed the cold start issue.
Just did mine at 69k. Felt like a small pickup in performance.
Bought a used 2014 CX5 with like 250km on it. Changed the spark plugs the second I bought it. Now THOSE were due.
I’ve had my cx5 since August of 23. Put 48k on it since owning it, bought used at 44k it’s been a dream come true. cx5 just takes regular maintenance like oil changes spark plugs and brakes..and another plus it’s a very sharp looking vehicle inside an out.
Spark plugs, coolant exchange, transmission drain/fill, brake fluid flush, and air filter replacement, stat.
These are OEM plugs without the VW branding so cheaper, I run these in my stage 1 Mk7 GTi and they are good just need to gap them down quite a bit as out the box they are I think .32? I change them every 15,000km or every 2nd oil change
That price at 63.5k miles isn't bad imo. I spent roughly that same amount for my 2017 back in 2019 with around 40k miles (64k km). What's the service history look like? Have spark plugs been replaced, belts checked, engine oil changed at least 10-12 times by now? How are the pads and rotors?
Hope you screwed them in with the correct torque, unlike my VW dealer. They started to unscrew themselves and causing instant misfire and rpm drops to 200 and engine shutoff.
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In March 2026 on PartReview, spark plug OEM Volkswagen and OEM Mazda were roughly equal.
In March 2026 on PartReview, spark plug OEM Volkswagen were overall more popular than OEM Mazda.
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