Does the M113 have cam oilers that go bad?

The tick tick sound started one day (that I noticed it), so I'm thinking something broke.

I hear the noise when the car is idling, but not when I'm running a normal driving speeds.

Your thoughts and suggestions are appreciated.

2002 W210 M113 E430
Miles: 107,000

I did just change the spark plugs, and after that is when I noticed the sound.

The sound concerns me, but the car accelerates nice and smooth, with no other symptoms.

__________________
Thanks for the help
Bill Fisher

'86 560SL (186K) - Now a 'classic' : Registered as an Historic Vehicle
02 E430 in the stable
'14 LS460 (Lexus)
- - - - -
'95 E420 (198K) found a new home
'99 E320 (80K) (gave it's life for me as we hit a bumper)
'95 E420 (231K) Sold to a happy buyer, new to Mercedes
'90 300E (65K) Sold to an Mercedes Lover
'92 190E (215K) - retired to the salvage yard
'93 500SEL (214K) - Moved to another family, still runs like a young pup

A ticking noise after replacing the spark plugs is more likely an electric arcing noise than a mechanical one. Check for loose plug wires (with the car off), cracked plug ceramics.

Look at the engine at night with it running to possibly see the arcing. Be careful, secondary ignition voltage can jump farther than you realize to shock you.

Good luck!!!

__________________
"Rudeness is a weak man's imitation of strength" - Eric Hoffer

The sound does not go away with speed, but does not get louder.
The tapping frequency does change with speed

At night, there are no visible sparks (yes, removed the engine cover)

Thanks again

__________________
Thanks for the help
Bill Fisher

'86 560SL (186K) - Now a 'classic' : Registered as an Historic Vehicle
02 E430 in the stable
'14 LS460 (Lexus)
- - - - -
'95 E420 (198K) found a new home
'99 E320 (80K) (gave it's life for me as we hit a bumper)
'95 E420 (231K) Sold to a happy buyer, new to Mercedes
'90 300E (65K) Sold to an Mercedes Lover
'92 190E (215K) - retired to the salvage yard
'93 500SEL (214K) - Moved to another family, still runs like a young pup

Hook up an oil pressure gauge to the oil pressure test port. This engine has no built in oil pressure gauge or oil pressure idiot light. There's an O rings between the oil pump and block that is known to fail. The first symptom of low oil pressure is ticking lifters.

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CENSORED due to not family friendly words

Yes, Sugar Bear called it out.

Problem solved today by simply pushing the plug wire on for all the plugs. I noticed one moved when I pushed.

Seems the ticking stopped.

Others suggested Oil Change - which I did.

And I appreciate tjts1 comment about oil pressure. I found many articles referencing the oil pressure or lack of it.

Thanks all.

Now if I could just find how to replace the Instrument Cluster (pixels dead and the gas gauge is not always accurate)

__________________
Thanks for the help
Bill Fisher

'86 560SL (186K) - Now a 'classic' : Registered as an Historic Vehicle
02 E430 in the stable
'14 LS460 (Lexus)
- - - - -
'95 E420 (198K) found a new home
'99 E320 (80K) (gave it's life for me as we hit a bumper)
'95 E420 (231K) Sold to a happy buyer, new to Mercedes
'90 300E (65K) Sold to an Mercedes Lover
'92 190E (215K) - retired to the salvage yard
'93 500SEL (214K) - Moved to another family, still runs like a young pup

tear open a oil filter, different motor but mine thee top end was sliver, aluminum. I replaced engine

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1999 w140, quit voting to old, and to old to fight, a god damned veteran