3.0 tdi metalic click noise when starting hot engine

tiger2345

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Hello, Problem started 3 months ago, When starting hot engine which has been off for like 10-15 mins, there is a single "bang" like or "metallic click" noise when cranking engine, engine starts normally, after turning it of and start again, no noise, i thought it would be a starter, installed brand new one, no wire corrosion, battery good, no error codes, no leaks, engine working fine but sound is loudn and annoying, sometimes there is a feeling that something is slowing crank down a bit when hot engine is stopped for 15-20 mins. Anyone has experienced something like this?

150kw 3.0 tdi BKN engine.

 
from you description i would say its the cam chain. but couldnt really here it in the video...
 
It does sound like a starter motor bendix . You need to check all the wiring for the starter solenoid. Could be an issue with the ignition switch.
 
Since summer is here, the sound came back, and i found what it is, dripping(leaking) injectors, who makes a hydrolock stop for 1 sec then cranks again on hot engine.