i had the same problem, i cleaned my throttle body and the Coolant Temp Sensor and that solved my problem, 3 months down the line it's doing it again. so i'm not to sure what the problem is as i have just checked my tbh and it's clean. but yeah hopefully the Coolant Temp Sensor should solve your problem.
I hope the temp sensor fixes it, mine idles a little high when i start the car at about 1100 rpm, but 1800 is insane. clean the throttle body and maybe vag-com it.
Right been poking around the car and found a split hose..but I have no idea what it is!
It's under the inlet manifold, to the very right. A small brown/gold pipe runs right under the inlet manifold to it, and it connects to a larger hose which plugs into the right hand side of the engine, think the larger hose is called the main breather pipe?
Any ideas what my split pipe is called so I can get it replaced? Got a big gash in it...
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