Loud groaning sound from centre console during wet driving

[kennyplc]

Hi guys,

A newbie here. Have a question on my C200 pre FL here. I experienced loud groaning sound and vibration from the centre console or engine area when driving at low speed and I think it on the 4th gear during raining weather (roughly around 40-50km/h due to slow traffic on expressway) However, it's perfectly fine during sunny day and at the speed. Engine oil and ATF plus filter changed recently. 

Anyone experienced this before? Can share?

[Masamori]

Yes, my 2010 w204 have the guggling sound coming from under carriage during heavy rain, feel like engine going to stop. Having this problem for years already but cannot simulate this to the mechanic

[kennyplc]

I hope is exhaust problem which might have caused the water to seep in during rain. I will plan a visit to the workshop and ask them to check if there's any dent or holes to seal. Hopefully this is the problem.... Finger crossed...😅😅 will update the findings but have to be next week as this week I'm totally packed

[dchum]

might be the engine mounts that are worn out - possibly more vibration on cold days 

[kennyplc]

All Engine mounting changed recently. Will get them to check if it's installed properly.

[Birdchua]

I just brought W204 pre FL and have exactly the same issue.

During heavy rain, felt like no power, loud sound from centre of undercarriage and at time burning smell.

Do keep us update of any findings, I will share my findings next time I bring the ride to my mechanic

[kennyplc]

I went to the garage yesterday and they said a mid section (a small rectangle metal box) of the exhaust, the stuff inside has gave way.

I repaired it so now I need a rain to test it out.. Unfortunately today very hot...

Hopefully it's really the problem. Damage is $250.

[Huwaid]

Hi, any update on this? 

 

[waypoint12xl]

Hi All, any updates to this thread? Has anyone managed to resolve the gurgling sounds and loss of power when driving in the rain/wet? With the intention to keep the car for the long term, I have already done the following in attempts to fix the issue but still to no avail for my 2009 W204 C180 Kompressor... 

1. Changed all SC plumbing

2. Changed fuel pump/filter

3. Replaced front/back flexible shaft Coupling and centre bearing 

4. Ignition Coil Pack

5. Air-intake hose

6. Bonnet weather seal 

Thanks in advance for any inputs. 

w a y