Undercarriage/ exhaust noise during flood

[Masamori]

During heavy rain and flood occurred, my ride PFL W204 has this loud gargling sound that seems to come from the undercarriage exhaust pipe. After consulting workshop they did a check on the exhaust but couldn't find any crack or faults on the exhaust. The gargling sound will normally go away after a few minutes off the flood water.

Does any bros has such kind of symptoms happened on your ride? It is very difficult to simulate unless during heavy rain.

.

[Old-MAN]

Yap....I got similar experience but with the suspension only when car run over very big puddles of water......

Usually goes away away after parking in the sun for a couple of day.....

[Tanzy]

During heavy rain and flood occurred, my ride PFL W204 has this loud gargling sound that seems to come from the undercarriage exhaust pipe. After consulting workshop they did a check on the exhaust but couldn't find any crack or faults on the exhaust. The gargling sound will normally go away after a few minutes off the flood water.

Does any bros has such kind of symptoms happened on your ride? It is very difficult to simulate unless during heavy rain.

.

 

Have you tried spraying or hosing the undercarriage down with water whilst engine is running?

 

Is the sound loudest on idling or during engine load or high rpm?

[Masamori]

Have you tried spraying or hosing the undercarriage down with water whilst engine is running?

 

Is the sound loudest on idling or during engine load or high rpm?

I would say the gargling sounds when idling of engine into higher rpm.

[Tanzy]

I would say the gargling sounds when idling of engine into higher rpm.

 

Sorry.

わかりません

Please elaborate.

[Masamori]

Sorry.

わかりません

Please elaborate.

t

Sorry I mean the note will increase with the rpm, わかりましたか？

[Tanzy]

t

Sorry I mean the note will increase with the rpm, わかりましたか？

 

そうですね・・・

わかた。

 

So sound is engine related. Could be broken exhaust manifold cover or cracked exhaust manifold.

[daffy]

mahmoud ahmadinejad speaks jap?