I drive a Multipla 1.9 Jtd 8v owned it 7yrs and the engine is brilliant, a little tappety but thats normal..
i have had a few aux belt tensioners (3 genuine ones, the last 1 i got free as the 2nd one was faulty) + one air pressure sensor..
If its the 8valve jtd then its plain sailing providing you change the cambelt and waterpump every 40k. and regular oil changes ..
cambelt book states "check at 36k and replace at 72k" but i have seen and heard too many go, mostly due to seized water pumps (on 16v engines).
16valve engines need the same cambelt - water pump changes every 40k but can also suffer from fuelling problems but these problems i have found to be mostly when fitted in vauxhall vectras & zafiras etc..
hope this helps
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