E87 120i N46 engine noise at cold start

[Ravix75]

When I start the car in the morning there's a little random noise like a plastic clicking/ticking. When I press the gas the noise disappear.. Does anybody has a clue??? The car has a good iddle and goes very good..

 

[Mohammed01234]

Howsit

It could be one of a few things:

Worn lifter/lifters
Worn eccentrics on eccentric shaft
Worn Belt Tensioner
Something that could be touching against another part


The sounds an engine makes can be specifically defined when heard, it is difficult to pin point the issue (not impossible:=): ) via a thread, best is to take it to a reputable workshop for accurate diagnosis

All The Best

 

[Flex]

Yes agreed, take it in somewhere for proper diagnostics. :=):

I reckon it might be the lifters ........

Let us know, cause we also drive a 120i so that I can be on the 'lookout' for the same thing one day!

 

[th3l33k]

When I start the car in the morning there's a little random noise like a plastic clicking/ticking. When I press the gas the noise disappear.. Does anybody has a clue??? The car has a good iddle and goes very good..

Does this happen only once in the morning, or always at idle?

 

[Ravix75]

When I start the car in the morning there's a little random noise like a plastic clicking/ticking. When I press the gas the noise disappear.. Does anybody has a clue??? The car has a good iddle and goes very good..

Does this happen only once in the morning, or always at idle?

Only in the morning, I read in some place that the timing chain tensioner, came with some failure from factory, BMW replace it with a new model.
The sound does not appear to be the lifters, because does not increasy the speed as you put some gas. I already order the part (number 7 ) http://realoem.com/bmw/showparts.do?model=UF51&mospid=48926&btnr=11_3189&hg=11&fg=25

I will replace it and I let you know...

Cheers from Venezuela!!