Rino71
Date registered: Dec 1899
Location:
Vehicle(s):
| ML 400 CDI CLicking noise from engine
I have ML 400 CDI..Last three weeks when I start my ML for 3-5 sec some strange clicking coming out from engine but when engine is hot no clicking at all during start.
Found on one of the forums guy who has similar problem as mine.(154 000 km)
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3 years ago the car would make a clicking noise in the first 3-5 secs since start coming form the engine.Later that 5 secs the engine sounded OK.I was told by a couple of service MB dealers that it was something with the oils not going up intime and that it should not bother me.Note that if i step the throtle in the first seconds the clicking sound would go away before the 5 secs.
Every 100.000km / 80.000 miles the timing chain has to be replaced on this ML 400 cdi v8 OHM 628 engine.The first indicator on the problem is the clicking sound on every cold start up of the engine.My car at 170.000km and after all merc official service point denying to repair my car two years now from when the sound came in about 115.000km and today i had a screw of the slider that keeps the chain in track broken and thus the noisy crank i describe above.
Finally the mechanic had to take off the timming chain covers,the diesel evaporators,all radiators,the front belt and the headlights to have access to the sliders and syncro the timming chain.
Painfull and timefull job all have been avoiding.
Total cost 700euros for parts - 500euros for labor..
today after 2000km and the car drives beautifully.
Any suggestion or opinion??????
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