traumadoc

HI. Will be getting the CLS55 soon.... So they tell me. The dealer has not mentioned the break in schedule for the car. What have you done?

idrive

I followed the break-in schedule as close as possible. A lot have not.
First 1200 miles...
No full throttle starts
Don't exceed 4200 rpms
Top speed is 90
gradually work your way up

traumadoc

Thanks for the info. What happens is not? Loss of power or engine life?

Stiggs

I've seen other threads on this topic. It might help to do a search. In these threads people state that when they drive the car sorta hard during break in, they get better horsepower numbers from the dyno. Not sure if this is true. I would rather play it safe than sorry. I broke my CLK in easy. I still drove her fast...just didn't push the pedal too hard.

VelocitE55

I still have the Run-In Instructions sticker from the windshield. It reads as follows:
-No full-load operation and no kickdown until 1000 miles are exceeded
-No engine speeds above 4500 RPM until 1000 miles are exceeded
-No speeds in excess of 85 MPH until 1000 miles are exceeded
-After 1000 miles, increase load slowly.

Once I broke 1000 miles, I was done being nice, lol!

traumadoc

thank you