2014 Mercedes-Benz CLA250 Long-Term Road Test

Edmunds.com

2014 Mercedes-Benz CLA250 Long-Term Road Test

Here is the proper engine break-in procedure for a 2014 Mercedes-Benz CLA250.

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vvk

WOW, this is by far the most stringent break in procedure I have ever seen!

No downshifting for engine breaking? I don't think I have ever heard of this before.

arcticbluetsx

At least they allow for a normal max speed. I typically keep my break-ins at 55 or below (I always stay in the right lane on highways to avoid getting flipped off)

noburgers

I wonder if e-mode prevents any of those events from occurring? The hardest to hold to must be the one about not manually down shifting--thaqt's just habit.

bassrockerx

i have my doubts most customers still do this

mfennell

I was under the impression (from a long ago Kevin Cameron article in now-defunct Cycle magazine) that some engine braking was useful for break-in.

agentorange

If the engine breaks when you downshift you are doing it wrong. Please advise your spell checker (or is it chequer?) about breaking and braking. I thought this car had an automatic? What is this manual downshifting all about? If you are driving a car in break-in mode, you won't be going fast enough to need engine braking in addition to the brakes.

eriches

Interestingly, driving in E mode is pretty much a must during highway travel anyway. In Sport (S) mode, you can't access 7th gear -- 6th is as high as it will go. Of course, there is a third option: manual mode. --Erin

fordson1

If this thing has rev-matching on upshifting and downshifting, the technically it's not engine-braking even if you downshift manually.

agentorange

@fordson1 Even with a matched shift you may be are slowing the car against the compression at significant revs = engine braking.

iode

Broken the 1k break in period not long ago. It's time to explore my options for fun with Sport and Manual.