I've owned the car for barely 30 hours and yet some things already seem bone headed.
1. Active Brake Assist - WHAT bean counter thought this is a good idea? I can brake just fine with my foot thank you. With this on, braking feels unnecessarily harsh (not smooth at all). Turning it off makes braking smooth and pleasant, as my foot knows what to do. But I can find no way to turn it off permanently. Every time I get in the car I have to turn it off again..
I've not had "Active Brake Assist" kick in for Me, though done less hours than You!!
Do You have the "Distance Pilot Distronic" - Though over here every car now has to have the feature where it will brake for You, if it thinks You SLC is going to crash into the car in front...
As for the "Brake Assist" - I haven't perfected the art of engaging it (Sales Person did say it takes practice - Apparently go to release the brake pedal, then give it a dab), saves holding the brakes at the lights and would help for a quick take off, from the line, now the manual hand brake has gone..!!
2. Attention assist - I dont need the car telling me when I need a cup of Joe. Same as brake assist, re activates every time I turn the car off and back on again..
Now I was reading the manual
...and thought "Attention assist" monitored Your driving, and if Your driving is no longer as sharp, it will flash up the message..?? (Red Bull & a power nap is Your friend on long drives..!!)
3. Fuel reminder - yeah I know I am low. No I dont need you to find me a gas station. Hopefully a member here with the diagnostic tool can help me permanently deactivate this, as that is the only way afaik
That is the downer on the newer UK SLC43's that it only comes with a 60 litre fuel tank & can't order the 70 litre either over here... And be interested for "range" reasons, not running costs what the SLC43's MPG is going to do on a long Motorway run..??
So what Octane do You have to run Your SLC43's in America??
4. The pops and crackles are obnoxious in sport+. It feels forced and unnatural. If the car is as fast in Sport as it is in Sport+, I may never use that mode..
Agree that the "pops and crackles are obnoxious in Sport+." and don't plan to use that mode, un-less I want to annoy some bystanders...
Sure the engine doesnt sound as sexy as that lovely V8 in the 55, but other than sound quality and acceleration ABOVE 100mph (aka go to jail territory if not on a track), it feels every bit as capable after 1300 miles in the car as the V8 did the one weekend I got to borrow one. I definitely feel the weight of the car less when taking corners hard, and feel like I could chew up a track day much easier in the 43 than the 55 as a novice driver..
Agree the 55AMG sounds better than the SLC43 & think the 55 is quieter in Comfort mode..??
But the SLC43 sure is quick, with instant gear changes - though not sure if I like or not like the way that if You over ride the gear box with the flappy paddles, it reverts back after a short period?
So useful for some short term engine breaking, or being in a better gear to accelerate out of a bend:
(Though You can press the "M" mode for manual changing, with no interference, if You really what to play..!!
As for the handling, the SLC43 sure is nimble and the variable powering steering makes small to medium roundabouts a lot easier than My old 2010 SLK350, that didn't have variable powered..
Weird, but also loving the shift knob being so low and out of the way. Its a minor thing but I never really noticed how the pre-facelift R172 shifter got in the way until now. I am going to try to get the AMG shift nob and silver dial to replace the stock ones. Ive seen the AMG shift knob on the SLC43 Redart edition. Ive only seen the AMG silver dial on ONE SLK55 I saw on autotrader, possibly a retrofit from an SL65 silver dial.
Agree the SLC "Shift Knob" is a lot neater & nicer to use - Only down side is "when" We take it to the Alps, where You have hair pin bend, after hair pin bend, the ability to just tape the Gear Shift Knob left or Right to change, especially from 1st to 2nd after coming out of a inside hairpin bend will be missed...
(Not seen the AMG one's - any pictures..??)
Now that our UK roads are covered in Salt.... I won't be doing many more miles for a while to get use to My SLC43, but will try and do a full pro's & con's report to un-grading from a face lift R171 SLK350..
(I remember @Col
saying that it took a while to fully transfer over to His R172 55AMG)
But till then, make sure You have a good long test drive, before un-grading to a SLC43....