Intermittent Coil Warning Light on Mk5 GT TDI

[doink]

I recently bought a genuine Varta from VW for my GTI for a similar price to that. I've also used a supercharge gold plus battery in the past which was reliable. They come with 3 yr warranty. Try autobarn for the supercharge.

[ozrcboy]

Thanks doink - can see I'm not getting away for less than $200. The Supercharge is $225 roughly it seems.

[neil]

Bursons if you have one nearby have century still aussie made , replaced mine last year Jetta TDI MY07 and is in my rodeo ute now.
Seemed to fix the issues I had with motor turning over and not firing unless you kept your foot flat to the floor when you turned the ignition.
Hasn't done it since. Ute is now 25 years old and the old VW battery replaced a 10 year old aussie Yuasa (century) battery.

[Jesss]

interesting enough, my GT TDI has the same issue as of 4 weeks ago, scanned it, inlet manifold controller runner error (cant remember the code) replaced part, seemingly fine and ran great, a week ago it came on again, same error, still intermittent, cleared code, battery is only a year and a half old but does seem harder to start in recent months, had a tune on it, so I've since removed the tune and running stock to see what happens from here. When the coil light started flashing the car did run like a pig.

if you have any other updates I'd love to know since i'm stuck in the same boat.

[ozrcboy]

Hi Jesss. We just did the battery replacement in our Golf. Seems to have resolved the issue of the coil warning light coming up when the engine is cranking. The other issue - I think the inlet manifold decard was also pretty useful. Get the liqumoly stuff - make sure you get the diesel.

[Jesss]

Battery is still under warranty, so might look into that, i have some liquimolly stuff i bought a while ago sitting at home (the diesel one) might give it a go.