23rd Mar 2011, 06:39

I had the same on a 2003 Polo 6 v 3 cylinder, quite common apparently, the chain tensioner is made of monkey metal, so the chain jumps a few teeth, still drives OK, but eventually burns out the exhaust valves, hence the uneven tickover. Just cost me £480 trade price, new modified chain, 3 valves, and I'm a mechanic, thought it was a coil going AWOL, bought the Polo cheap with the misfire, will think twice next time..

Everett.

14th Feb 2013, 07:54

One of the coil packs for sure!

12th May 2013, 06:40

Hello,

The same is happening to my car, but what was the exact problem with your car? You mention you took it to a garage and now it's fine, so what was causing it??