Mystifying Misfire

[Serge]

Hello!

I bought VW Lupo 1,4 16V engine AUA when I moved to the UK and it was a couple of month ago. I have a problem with the car. VCDS shows that there is a misfire in cylinder #1,

but a very strange misfire. It only appears in the mornings and when the car is absolutely cold. It starts around 900-800 rpm and goes away when the engine is hot (but after erasing DTC)

I changed a spark plug, ignition leads, ignition module, detonation sensor, temperature sensor. Compression is good. Manifold is checked, everything is checked and not only by me. I took the car to a several garages, nobody can find the reason. I'm really frustrated and don't know what to do. There are no errors except this one:  

Chassis Type: 6X (6X - VW Lupo (1998 > 2006))
Scan: 01 02 03 08 15 17 19 25 35 37 44 45 55 56
 
VIN: WVWZZZ6XZ1W050738   Mileage: 73210km-45490miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 036-906-034-APE.lbl
   Part No: 036 906 034 AR
   Component:  MARELLI 4LV       3634   
   Coding: 00003
   Shop #: WSC 01236  
   VCID: 62D3BD03244F412269B4ECD-4B4C
   WVWZZZ6XZ1W050738     VWZ1Z0Y1005454

1 Faults Found:
16685 - Cylinder 1 
            P0301 - 35-00 - Misfire Detected

I also checked EGR Valve and cleaned the EGR pipe, though it was relatively clean.

{Please, help me, maybe somebody has an idea or had smth similar.

Thanks