This week I suffered what I now realise is a very common problem on the 1.2 TSI Yeti i.e. a sudden loss of power, EPC light, traction control light and general engine warning light illuminated.
The AA man diagnosed ignition failure on cylinder no 3, and a quick search of this forum convinced me that the HT lead was most likely to blame.
Nowhere local had the genuine VAG part in stock, so I settled for a set of four leads from Euro Car Parts, and easily replaced no 3 lead. This got the car going on all four cylinders, and the dashboard warning lights were extinguished but, except when driving very gently indeed, a serious misfire persisted and I felt compelled to take the Yeti to my friendly independent garage. They fitted a new coil pack, but this didn't make any difference, so I returned next day and, after some discussion, we suspected the Euro Car Parts HT lead and ordered the genuine article from VAG. My yeti is now back to normal, and I'll be demanding a refund from ECP.
I hope this anecdote is helpful to others.
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