C320 nop nop nop noise I do not get assistance from Finland
Thread Starter
Junior Member
Joined: Sep 2010
Posts: 38
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From: Southern Finland
C320 W201 W202
C320 nop nop nop noise I do not get assistance from Finland
Hello from Finland 
And I apologize for bad language. I have a problem which I do not get assistance from Finland. Studied car brand business performance poor. The car is a C320 V6 Auto (bensin) -01 year. Engine or gearbox is plop plop plop plop sound when the engine is warm and the gear connected to a D or R. Free set N does not produce sound. A cold engine produces no sound but the heat must be at least 40 degrees.
The sound comes from 5 seconds to delay when the gear is set to D or R, and the engine is warm. So when in gear consists of a burden on the sound will play. The water pump is a new micro V clamp is a new driver for a new roller, new crankshaft damper.
The sound is not sharp metallic sound, the sound is a soft plop plop plop a flat, or NOP NOP NOP, difficult to describe. Is it the fault on the engine or gearbox? None of the other symptoms do not exist, otherwise the car is perfect and will change gears correctly.
Can anybody help me, I am grateful
And I apologize for bad language. I have a problem which I do not get assistance from Finland. Studied car brand business performance poor. The car is a C320 V6 Auto (bensin) -01 year. Engine or gearbox is plop plop plop plop sound when the engine is warm and the gear connected to a D or R. Free set N does not produce sound. A cold engine produces no sound but the heat must be at least 40 degrees.The sound comes from 5 seconds to delay when the gear is set to D or R, and the engine is warm. So when in gear consists of a burden on the sound will play. The water pump is a new micro V clamp is a new driver for a new roller, new crankshaft damper.
The sound is not sharp metallic sound, the sound is a soft plop plop plop a flat, or NOP NOP NOP, difficult to describe. Is it the fault on the engine or gearbox? None of the other symptoms do not exist, otherwise the car is perfect and will change gears correctly.
Can anybody help me, I am grateful
Last edited by C320 Make; Sep 5, 2010 at 01:41 PM.
Thread Starter
Junior Member
Joined: Sep 2010
Posts: 38
Likes: 0
From: Southern Finland
C320 W201 W202
I tried second C320 and it was same voice
I tried second Automatick C320 (gasoline) and it was the same voice as my car. But this car plop plop / NOP NOP sound is much much more quiet voice. Does this sound "normal" for this car model?
What's that sound is, I think this sound is, for many automatick C320 model, but my car is the same voice is much more noisy? What does this sound comes from and why my car sound a lot stronger than the second which I have tried
What's that sound is, I think this sound is, for many automatick C320 model, but my car is the same voice is much more noisy? What does this sound comes from and why my car sound a lot stronger than the second which I have tried
Last edited by C320 Make; Sep 5, 2010 at 01:41 PM.
Thread Starter
Junior Member
Joined: Sep 2010
Posts: 38
Likes: 0
From: Southern Finland
C320 W201 W202
Hello.
I speak on the phone and I tell specialist my problem...
Automatick transmission specialista say me on the phone that it is not gearbox, because it work very vell and that sound is not gearbox. i dont kow.
He get me one tip...timing chain tension tightener?
I dont know but the sound comes when the engine temperature is at least 30-40 degrees and the D or R gear with the brake in place. Now begins the steady tone for 5 seconds delay when connected to a gear (D or R) plop plop plop sound .... no metallic sound
When I move the selector to N position, the sound off.
Could this be a timing chain tension? Timing chain tensioner. Need to change the tensioner (tightener)? Or what
I speak on the phone and I tell specialist my problem...
Automatick transmission specialista say me on the phone that it is not gearbox, because it work very vell and that sound is not gearbox. i dont kow.
He get me one tip...timing chain tension tightener?
I dont know but the sound comes when the engine temperature is at least 30-40 degrees and the D or R gear with the brake in place. Now begins the steady tone for 5 seconds delay when connected to a gear (D or R) plop plop plop sound .... no metallic sound
When I move the selector to N position, the sound off.
Could this be a timing chain tension? Timing chain tensioner. Need to change the tensioner (tightener)? Or what
Thread Starter
Junior Member
Joined: Sep 2010
Posts: 38
Likes: 0
From: Southern Finland
C320 W201 W202
A complex matter. and I am talking alone 
Feeling the engine without the belt. Without the belt Nop NOP / plop plop sound gear drops D / R setting about 40-50% of silence
What does that tell
Feeling the engine without the belt. Without the belt Nop NOP / plop plop sound gear drops D / R setting about 40-50% of silence
What does that tell
help me 
