Mercedes vito 108 cdi wont start when hot?

My Vito van will start up fine but if you turn it off it will not start again you have to wait for engine to cool down before it will start again ?
Phil, March 2009


done
try replacing the o-rings in the fuel presure monitoring switch which has 3 small o-rings inside. if any of these are split they can cause this problem..

griff, November 2009
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