Audi a3 bkd idle problem

[Jay2017]

Hi all I was wondering if some one could help me out I have a 2004 audi a3 2ltr tdi sport with the bkd engine when u start it from cold it will idle fine for about 5 to 10 minutes then idle really rough then when it starts to warm up the problem goes away untill the next cold start any ideas anyone

[Rob82DZL]

Hi Jay, do you get any warning lights on the dash when it does it? (glow plug warning light intermittent possibly?)

[Jay2017]

No warning lights at all pal I fitted 4 new bosch glow plugs as I thought the same thing but problem is still there the car does not loose power when it's doing it either the engine does move back and forth when it's doing it

[Rob82DZL]

I mite be wrong but I think there is a 5th one that plugs into the cooling system, not sure if that was just on the 1.9 PD thought. If so that is the one I was going to sugest to check.

[Jay2017]

Where would I find this glow plug for the cooling system pal