TNTim

I have a 2012 CLS550 and the only thing that's letting it down for me are the terribly slow gear changes. There's around 1sec between me flicking the paddle and it changing gear which can cause it to get very close to the limiter if I'm pushing on a bit.

It also means that kick-down is really slow too so when overtaking traffic I have to manually select the gear.

I've heard that Mercedes around this age are known to have rather slow gearboxes so this may be completely normal behavior, but I saw in another thread that they are prone to problems so looked into it some more and saw that 'delayed' gear changes are a common problem which can be fixed with a TCU update.

So, is it normal or should I take the car to the dealership to be looked at?

Thanks

Stens

I’ve got a 2012 as well. It does not behave like yours. No hesitation when manual shifting and no transmission hesitation when I stomp on it. Throttle response is, of course, more direct in Sport mode, but I’ve not noticed anything with gear shifts.

Good luck.

click430

I have recently had "Delayed Shifts" as well when the car is cold, and for just the first or second shift in the morning.
The car wants to downshift, but it feels like the car dies, but then picks up hard and shoots ahead.

She's going in for a B service this week, and I'll ask my tech about this...

TNTim