dirk1978 Posted November 22, 2020 Report Share Posted November 22, 2020 I was going to post about this earlier asking what it could be. Hesitation/misfire/3 cylinders firing from around 1500-2000 rpm but fine above that. I took the leads off and looked. This looks pretty conclusive: 1 corroded, 3 fine. I blasted the coil pack and lead with carb cleaner which cleaned it right up. It drives so much better now. Even gear changes and pulling away are smoother. I've ordered a new coilpack too. Quote Link to comment Share on other sites More sharing options...
mk2 Posted November 22, 2020 Report Share Posted November 22, 2020 Oh god, yet another vdub affected by their damned ignition leads. What is it with vdub ignition leads and coil packs?? Give it a year or two and you'll need to change them again... try squirting some silicone grease lube into every socket/cap to help keep the moisture out. 1 Quote Link to comment Share on other sites More sharing options...
Blue Loop Posted November 23, 2020 Report Share Posted November 23, 2020 As I was reading, I was going to tell you to order a coilpack. As spray cleaning is nothing but a temporary solution (been there done that). In my case it was two clean, two corroded. Changed the spark plug cables as well while I was at it Quote Link to comment Share on other sites More sharing options...
ObjectiveAway Posted November 23, 2020 Report Share Posted November 23, 2020 It is possible to buy the broken ceramic part seperately (which is actually the cheapest part), therefore you don't need to buy whole coil pack. Quote Link to comment Share on other sites More sharing options...
dirk1978 Posted November 23, 2020 Author Report Share Posted November 23, 2020 1 hour ago, Blue Loop said: As I was reading, I was going to tell you to order a coilpack. As spray cleaning is nothing but a temporary solution (been there done that). In my case it was two clean, two corroded. Changed the spark plug cables as well while I was at it Good thinking I'll get some leads too. This set has been on the car at least since I've had it so they're 10 years old+ 27 minutes ago, ObjectiveAway said: It is possible to buy the broken ceramic part seperately (which is actually the cheapest part), therefore you don't need to buy whole coil pack. Interesting. I've already ordered the coilpack for £20 so not a massive outlay. Quote Link to comment Share on other sites More sharing options...
ObjectiveAway Posted November 23, 2020 Report Share Posted November 23, 2020 16 minutes ago, dirk1978 said: Interesting. I've already ordered the coilpack for £20 so not a massive outlay. Coil packs are very important for your engine perforance, I wouldn't trust 20£ set more than OEM top part and new 20£ bottom from high end manufactuer. Quote Link to comment Share on other sites More sharing options...
dirk1978 Posted November 23, 2020 Author Report Share Posted November 23, 2020 10 minutes ago, ObjectiveAway said: Coil packs are very important for your engine perforance, I wouldn't trust 20£ set more than OEM top part and new 20£ bottom from high end manufactuer. for £20 if it fails I'll get another one. If the performance is poor I'll be able to tell and order a better one. 1 Quote Link to comment Share on other sites More sharing options...
Skajme Posted November 23, 2020 Report Share Posted November 23, 2020 Had this problem on both my GTI's, both times I replaced the pack and the leads because the ends of the leads were corroded aswell. Quote Link to comment Share on other sites More sharing options...
James_VW Posted November 23, 2020 Report Share Posted November 23, 2020 Had the same issue on my GTI, also the exact same one which corroded as yours. I replaced the coil pack with an aftermarket one about £16. Been on over 12 months now with no issues. I also replaced the leads with the ones by mr-leads on eBay. Again, no issues at all. Quote Link to comment Share on other sites More sharing options...
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