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M119 bad noise

RRR

E500E Newbie
Hello I have an issue with M119 engine in the car that I recently bought. It has some knocking noise. I don’t know when oil was changed last time. Do you have any idea what that might be ?

https://www.youtube.com/watch?v=5zFSGhJscZM

[video=youtube;5zFSGhJscZM]https://www.youtube.com/watch?v=5zFSGhJscZM[/video]
 

carboRS2

Member
My car had the same ticking noise. I removed cam covers and found slacken timing chain so decided to replace chain and tensioner. Then something went wrong and new chain got stuck into engine.
Then removed front engine cover, which led me to remove cams as well...
Finally found the source of the ticking noise: 3 valve lifters in driver's side had no pressure.

Before going all the way I did I would check the lifters first.

Enviado desde mi Aquaris X Pro mediante Tapatalk
 

gsxr

.036 Hoonigan™, E500E Boffin
Staff member
The higher-pitched ticking noise sure sounds like one or more plastic oil tubes have the end caps popped off. You'll need to remove both valve covers to inspect all 16 tubes.

There appears to be a separate, lower-pitched knocking noise which does not sound like lifters... hard to say what that is. I'd start by checing / repairing the oil tubes first. Search the forum for more information on this, it's been discussed many times in the past.

:mushroom:
 

RRR

E500E Newbie
I know the first ticking noise are lifters. I have No idea jest a this second lower-pitched knocking. This is bearing?
 

gsxr

.036 Hoonigan™, E500E Boffin
Staff member
I know the first ticking noise are lifters. I have No idea jest a this second lower-pitched knocking. This is bearing?
Yeah, that is the scary noise. Maybe bearings, maybe piston slap, maybe wrist pins? Or possibly none of the above. If you have access to a Pick+Pull you could snag some plastic oil tubes cheap or free and fix that first. If several tubes are popped you have a bunch of lifters with low oil pressure making a racket.

:hornets:
 

gsxr

.036 Hoonigan™, E500E Boffin
Staff member
Bummer you removed the first video. It would have been interesting to compare before (with popped oil tubes) vs after (with new oil tubes).

Something still doesn't sound right.

:mushroom1:
 

RRR

E500E Newbie
Yes i know, but think, this is bearing noise or piston slap? Or maybe only hydraulic lifters?
 

JC220

Active member
I have had lifter noise on many of my older w124s with m104 engines and my 500E once after it stood for winter.

Wynns have a valve lifter treatment which is added to the engine oil. It has worked every time for me to keep the lifters quiet. A short gentle drive is best to get it circulated through the lifters and start working.

You could try a valve lifter treatment first and see if it helps any. However that soft knock doesn't quite sound like a lifter to me....
 

kiev

Active member
JC220, any downside you can think of adding Wynn's valve lifter treatment? Isn't engine oil already high-tech with all sorts of additives?
 

gerryvz

Site Honcho
Staff member
In cold-ish weather, if the car hasn’t been driven in a bit, it’s not unusual to have a lifer noise for a couple seconds upon startup on a 104. I don’t think I’ve ever heard a startup tick/noise on my 119, even after not driving the car for weeks.

Had the slight noise on multiple 104s, and 117 on occasion too.
 

gsxr

.036 Hoonigan™, E500E Boffin
Staff member
JC220, any downside you can think of adding Wynn's valve lifter treatment? Isn't engine oil already high-tech with all sorts of additives?
If you aren't experiencing fairly serious mechanical issues, where you want to try a last-resort option of additives... skip the oil treatments. Usually, any issues that arise after long-term storage go away on their own after some time at full operating temp. I wouldn't be worried about a lifter tick unless it never, ever went away. In that case I might try an oil treatment before shelling out $600+ for 32 new lifters.

You are correct, oil mfr's put a lot of work into getting their additive package to work properly, and when you add other stuff it may not help. The M119 (also M104 and M120, which share a lot of design elements) rarely have lubrication issues.

:klink:
 
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