NISSAN MICRA K12 control chain

I bought a new K12 EZ 03/2003 and always praised it 100000km and recommended it further.For a long time he went out after starting and jumped again and ran perfectly, that went about one3/4 year until the indicator (yellow engine) engine malfunction lit up and no longer went out.The death of the engine became more and more common and he jumped increasingly worse.I drove into the workshop to have the error read out.The reading said Einspitzzeitpunk falsc h.I thought of a sensor that does not work perfectly.When the Wekstatt informed me after a short time that it is most likely the control chain, I got a shock because I knew the effort about.The next day the Wekstatt had the costs overturned 1300EUR +VAT are 1500EUR.The car had 108,000Km on it and was 31/2years old shortly after the guarantee.Now the bill 1600EUR chain tensioner had entered and the chain has hanged.The workshop writes a However, I have little hope for this. Question: who has a K12 from the first series Baj.2003 with more than 100000Km with the same synthesizers or the same repair costs