Hello All, My wife has an 06 Yaris (first registered Feb 2006, but I think it might have a late 2005 build date from memory) that seems to have a knock under load. We bought the car in January this year, through a car yard (a well known reputable one here in Perth), only one previous owner apparently. The car had 42,000 km on it when bought, about 45 or 46k on it now. I thought I noticed a slight knock not long after buying it, but it was very faint and intermittent and I dismissed it as me being paranoid. Lately it has become more obvious and more constant under moderate or high load - quite easy to induce by trying to accelerate in 5th on the freeway, or going uphill etc. The car has always been run on regular 91 ron unleaded, but last fill I put in 98 ron (BP ultimate) and the knock seems to have almost vanished but is still very faintly audible. The log books showed all previous servicing having been carried out on time and apart from some scratches showing the previous owner may not have been the most careful, it seems otherwise well cared for. Obviously it's still under warranty, so I'll take it in to a dealer to have it looked at, but I was just wondering if anyone else has come across this in a Yaris before? Cheers, Adam.
