munis

So is that done with a separate fuel injector connected to the exhaust manifold? If so, I am not sure why it wouldn't be possible to drop a few more droplets of gas on the hot exhaust.

powerrrrr

The tuning companies are probably a little more focused more on performance than audio only tweaks, the stock settings probably erred on the conservative side with that, even the old carburated engines only had a few pops when you lift off.

If you want a lot of pops, you should put in an anti lag system. Switch it on, and as soon as you go off boost, the system kicks in to maintain boost pressure with continuous backfires.

Sanch

That's who I found out through too!

It's funny that hes the only one that knows about the update?

Andyroo

Mercedes in the UK doesn't seem to know! I hope it's true--I really want it to be

Dthquazi

this is not entirely accurate. The pops in the exhaust can be caused by changing timing in the motor.

munis

Are there any Anti lag systems available for these cars? I ALWAYS WANTED ONE!

Bueller178

I hope if the exhaust does indeed get quieter that there is a solution. The exhaust is awesome and a major part of the enjoyment of the car for me.

Dd1101

I haven't hit a 1000 miles and I feel the same way. I have had the car for over a month now, but I am sure its just me getting use to the car.

SBH-

after the 30k KM service, I felt the change in the exhaust tone, but unfortunately was very lazy to do anything about it.

munis

Thing is if you bring this up with the dealership, I know exactly how they are going to react. They will be like it is all in your head, then I would say no it isn't, they would say yes it is and it will continue.

If anyone here can give me a very viable argument for getting this diagnosed from the dealership, I will be more than willing to do the leg work.

Dthquazi

Thought you had comparison videos. Also take yours in when they have a new one in stock. Test drive that one and then yours with the service guy in the car.

munis

I do have comparison videos, but I can't tell for all the service centers, but ones I have been dealing with point blank refused to look at some pictures I had of my tail lights with condensation in them. As far as I have seen they don't take in video or photo evidence. They apparently have to diagnose it themselves.

arnold0523

It all depends on the forman as it's the case for me. One foreman drove the car with me either had hearing problem or intended not to hear obvious rattles from the seatbelt adjuster. He said he wanted to hear it while driving, not from a video.

As to exhaust note, I think it may be hard to tell a difference from videos. Temperature, road condition etc. may vary.

Also, my personal note, when the temperature is very cold, and engine/exhaust/transmission temp are low - there's almost no pops and cracks from the exhaust (in sport +). Same day I tested it when all those temps went up, I could hear the exhaust not clearly (didn't notice a "quieter sound" - 2000 miles since delivery)

juse

Exactly
dont know how to be with it

Modio1234

I have not had my exhaust note get quieter but my c63s compaired to my friends we got them a few days after each other and his has 3000 miles and mine has 2500. When revving in park i get very loud cracks and bangs almost every single time i rev and he can rev for 10 minutes straight and not even get one in race mode.

303_AMG

Do you both have the "s" version and the optional performance exhaust?

rbohgan

i have 9k kms on mine and on idle its quiet. on cold start is a rumble but when its warm on idling its half the sound or less. no pops or crackles on revs. i sometimes get a little pop/crackle on shifting.

when i start moving from a light you can hear the rumble a bit more. i will be cutting out the secondary cats tho soon. i need more sound in my life. easy and cheap mod.

Modio1234

Yes we both have the s model and we both DONT have the performance exhaust both are bone stock. Our cars are exactly the same including the engine builder except exterior color and performance seats.

Andyroo

Anyone heard any more about this dealer exhaust software update?

DuncWatts

This thread's making me worried - guessing it's a sensible idea to get some videos demonstrating exhaust noise at delivery so there's a reference point in case they claim it's all in your head later on.

Is there a sensible place to sample the noise to get a decent reference - put a GoPro next to exhaust at idle, at x RPM or similar?

juse

-

munis

Small update guys, the exhaust being quieter might have been due to really cold temperatures. This weekend the temperature is a very nice 15C, and the car is properly loud again.

No idea behind the physics of this, but thought I will let you guys know.

5ilver-5urfer

The weekend weather here in the GTA was beautiful - I tested the cold / warm weather theory too and was pleasantly surprised as well! Mystery solved

1Gunner

Interesting...

Last Thursday I had a C43 w/PE loaner for a few hours. It had just over 6,000 kms on the odo. When I got my C43 w/PE back (it only has ~500kms on the odo), I found my C43 definitely sounded louder.

Same day... same ambient temps.

kck77

Check his Instagram... although not the comparison video he promised, he posted his "exhaust updated" ED 1 doing some revs ( albeit with a birthday cake and candles in tow ) ... none the less, the thing sounds pretty bloody mean and louder, maybe its just the cameras position, who knows ....