If there was ONE thing you change with your W204, what would it be?
- The unpredictable and wonky electronic throttle response.
- The horrible pitched whine that comes from the engine bay.
- The ability to get an alignment from the dealer that actually aligns the car.
- Better rear view camera with guidance.
- Instrument cluster trim that didn't rattle/buzz
Since this is supposed to be one thing I would have to go with #2 as I think the other options can be potentially fixed or hacked. This is the most god awful, horrible sounding car in automotive history ever produced and nothing can be done about it. Combine that with the instrument cluster that won't stop rattling has given me a hatred for the car that grows with time.
The main difference though with the Audis (both my crappy A4 and the RS4), was that when the tranny did downshift, the engine would pull happily until redline because they were both turbocharged. The W204 C300 pulls well once it does a double downshift, but then it dies off power wise from 5500 rpm until redline. It's sad, really.
I don't feel that the tranny is any better or worse than other cars I've owned though. The B7 A4 couldn't downshift two gears (from what I remember- please don't crucify me if I'm wrong). I do appreciate the W204 for being able to do so. (kickdown pedal)

- The unpredictable and wonky electronic throttle response.
- The horrible pitched whine that comes from the engine bay.
- The ability to get an alignment from the dealer that actually aligns the car.
- Better rear view camera with guidance.
- Instrument cluster trim that didn't rattle/buzz
.


I am not going to do noise reduction, too much work, just imaging I am doing that ...
The Best of Mercedes & AMG
I am not going to do noise reduction, too much work, just imaging I am doing that ...
Some people have reported good results from sound dampening.
But for me it's the accessory/belt system that offends the ears. The engine and exhaust are actually pleasant sounding. At certain RPMs it drowns out the engine and exhaust with a high pitched sound. This may only impact the C250.

I am not going to do noise reduction, too much work, just imaging I am doing that ...
The C class is not that much more noisier than a S class or an A8. It shocked me, and I didn't believe it until I took a sound-o-meter and measured the DB at various speeds.
Don't have to believe me - check it out yourself. Sure, an S class is quieter, but only by a few db.
The C class is not that much more noisier than a S class or an A8. It shocked me, and I didn't believe it until I took a sound-o-meter and measured the DB at various speeds.
Don't have to believe me - check it out yourself. Sure, an S class is quieter, but only by a few db.
But my complaints of the C250 are more related to the pitch. It's like nails on a chalkboard. Most people don't seem to notice it though.
73db is double the sound to 70db? I'm not disagreeing with you, I just did not know this and this info is news to me and keen to learn more. Danke!
According to that 3dB is doubling of sound power and 10dB is perceived as a doubling of loudness.
So now I'm not too sure now. Is 3dB double but we perceive 10dB as double?
According to that 3dB is doubling of sound power and 10dB is perceived as a doubling of loudness.
So now I'm not too sure now. Is 3dB double but we perceive 10dB as double?
Maybe I will have to buy a new car after all

I'm back in a W205 C300 loaner now and OMG, is it ever quiet. I get a soothing feeling of peace when I drive it. But the turbo and exhaust still sound nice when pushed.
My car has been at the shop so much I feel like the W205 C300 is my second car.

If I could realistically change one thing right now on my car it would be having the HID headlights.
If I could realistically change one thing right now on my car it would be having the HID headlights.
It's like they tried to do too much retro in the current design lineups.
I've put about 30,000 miles on my w204 and about 6,000 miles on W205 loaner cars.
Last edited by michail71; Jul 8, 2017 at 04:28 PM.
If I could realistically change one thing right now on my car it would be having the HID headlights.
Perhaps they have repaired that problem but early W204 models were all doom and gloom around 5 years old. The part probably cost 2 dollars to manufacture but the charged me nearly 2000 to repair it







