Backing down driveway.....
MBWorld Fanatic!
Joined: Jul 2015
Posts: 1,216
Likes: 114
From: SoCal
2016 C63S Sedan
That's entirely true, though the issue i have is more either the clutch engaging in a rough manner (rather than gradually/smoothly) or slipping entirely in comfort mode. What i would expect the clutch to do is to engage nice and smoothly but that doesnt seem to happen from time to time. It could be misbehaving when it is cold admittedly. i dont have a easy to find tranny temp gauge like i did on my gla so i'm not sure whether operating temperatures have anything to do with it rather than just driving style.
During the run in period (which i have just completed), even in sport plus, if i rely on auto shifting (which most of the time i have been ), the ECU will shift depending on what run-in stage the engine is in (ignoring kick downs). For the first few hundred miles, the ECU was great (C, S and S+) at shifting up at under 3k revs provided i didnt kick down on the pedal (which i havent really done at all due to the vehicle having so much torque). When i went over around 850 miles, the ECU would take the revs up to 4k even in comfort driving in a similar manner and without me pushing the car particularly hard. The ECU is opening the revs up very nicely now that i'm just past 1k miles.
Post run-in, I expect it to be just like the GLA 45 i used to own and the C63 i tracked a couple of years ago, ie holding revs much higher in S+ compared to comfort. What i'm not sure about is whether the transmission will settle down into a nice smooth experience in comfort mode or not which is the main area i've got my focus on.
The lack of motion/inertia problem was completely absent the last three days that i'd driven and it was much warmer outside than the "beast from the east" temperatures. Clutch was engaging and the vehicle was moving off without any issues.
During the run in period (which i have just completed), even in sport plus, if i rely on auto shifting (which most of the time i have been ), the ECU will shift depending on what run-in stage the engine is in (ignoring kick downs). For the first few hundred miles, the ECU was great (C, S and S+) at shifting up at under 3k revs provided i didnt kick down on the pedal (which i havent really done at all due to the vehicle having so much torque). When i went over around 850 miles, the ECU would take the revs up to 4k even in comfort driving in a similar manner and without me pushing the car particularly hard. The ECU is opening the revs up very nicely now that i'm just past 1k miles.
Post run-in, I expect it to be just like the GLA 45 i used to own and the C63 i tracked a couple of years ago, ie holding revs much higher in S+ compared to comfort. What i'm not sure about is whether the transmission will settle down into a nice smooth experience in comfort mode or not which is the main area i've got my focus on.
The lack of motion/inertia problem was completely absent the last three days that i'd driven and it was much warmer outside than the "beast from the east" temperatures. Clutch was engaging and the vehicle was moving off without any issues.
Thread Starter
MBWorld Fanatic!
Joined: Nov 2015
Posts: 1,095
Likes: 52
C63s
Here is a video of what I'm talking about:
Dealer refuses to actually claim the problem is a result of the modification (Mid City Engineering ECO OFF module), but they also refuse to warranty it.
Stated the wet clutch has been damaged.
But they now also claim the warranty is essentially void on any computer system or device attached to the CAN-BUS because the module was attached.
Effectively, my electrical and drivetrain warranty is void because they'll just blame the module (which has been removed).
This is illegal because they have yet to actually PROVE it's the module.
We've sent them video of the codes being sent by the module which show that the module is ONLY sending a toggle up, which the owner clearly does him/herself without damage to the transmission.
Code P0949 has been stored in the TCU multiple times, as early as June of last year (could have been even earlier).
They will also not provide me the TIPS case # to reference, an official estimate for the repair or any document claiming the module has actually damage something.
The dealer is clearly trying to appear to help, but won't document anything so Mercedes cannot point fingers at them later.....
Thankfully, I have everything documented myself.
I've contacted Mercedes Corporate and AMG this afternoon.
I have over $10K in other options installed that I do not want to lose the value of (full car wrap, tint, sub/DSP installed, spoilers, blacked out emblems, Ceramic Coating, etc.).
Car has <10K miles and the problem was first reported at 1200 miles (actually started at 500 miles and just couldn't get an appointment).
As you can see from my original post in this thread that I had inquired on the forums about this as early as 2/2017, just 3 months into ownership and ~400-500 miles.
Dealer refuses to actually claim the problem is a result of the modification (Mid City Engineering ECO OFF module), but they also refuse to warranty it.
Stated the wet clutch has been damaged.
But they now also claim the warranty is essentially void on any computer system or device attached to the CAN-BUS because the module was attached.
Effectively, my electrical and drivetrain warranty is void because they'll just blame the module (which has been removed).
This is illegal because they have yet to actually PROVE it's the module.
We've sent them video of the codes being sent by the module which show that the module is ONLY sending a toggle up, which the owner clearly does him/herself without damage to the transmission.
Code P0949 has been stored in the TCU multiple times, as early as June of last year (could have been even earlier).
They will also not provide me the TIPS case # to reference, an official estimate for the repair or any document claiming the module has actually damage something.
The dealer is clearly trying to appear to help, but won't document anything so Mercedes cannot point fingers at them later.....
Thankfully, I have everything documented myself.
I've contacted Mercedes Corporate and AMG this afternoon.
I have over $10K in other options installed that I do not want to lose the value of (full car wrap, tint, sub/DSP installed, spoilers, blacked out emblems, Ceramic Coating, etc.).
Car has <10K miles and the problem was first reported at 1200 miles (actually started at 500 miles and just couldn't get an appointment).
As you can see from my original post in this thread that I had inquired on the forums about this as early as 2/2017, just 3 months into ownership and ~400-500 miles.
Last edited by auditoamg; Mar 30, 2018 at 06:29 PM.
MBWorld Fanatic!
Joined: Dec 2012
Posts: 1,537
Likes: 372
From: Austin, TX
2017 Porsche 911 C4
Thread Starter
MBWorld Fanatic!
Joined: Nov 2015
Posts: 1,095
Likes: 52
C63s
Originally Posted by AlexZTuned
Burden of proof is entirely on the dealership, but that's only in court. Unfortunately, you may need to pursue that option and we all know that costs $$$.
I don't think it'll get that far when I push them at corporate....
Member
Joined: Dec 2017
Posts: 168
Likes: 16
From: Bay Harbor Island, Miami
2018 C63S Sedan
About 459 miles now and no issues regarding clutch engagement. Only issue I have is when I get to 1000 miles and a Sporty mode is where to go to see how the beast goes.
Last edited by midareff1; Apr 13, 2018 at 06:36 PM. Reason: add facts
Thread Starter
MBWorld Fanatic!
Joined: Nov 2015
Posts: 1,095
Likes: 52
C63s
Originally Posted by midareff1
So far no issues with clutch engagement drive or reverse, 300 miles on car so far. OTOH, cold in South Florida probably has a different meaning than cold elsewhere. Cold here is low 50's.
