Hello would have a short question to the KIA Picanto experts. My girlfriend drives a Picanto F/L 1.1 start of 2009 bought at that time. In order to keep the guarantee must be adhered to the inspections the first was on 16.12.2010 (11000km) there was only oil/oil filter and inside filter changed 97 Euro. Now on 07.01.2012 (15741km) the next, it was agreed that the bill amounts to 100 Euro if it would be more expensive the dealer had promised to My friend was totally shocked according to the dealer, the valve play had to be adjusted as well as it is on the bill valve cover seal 15 Euro oil filter 7 Euro spark plug 19 Euro oil 26 Euro cleaning and brake fluid 10 Euro 118 Euro wages without MWS My question can be that after only 15741km of running performance one (or several) spark plugs have to be replaced and the valve play will be adjusted Is it necessary?