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Discussion Starter #1
Hi,

cant seem to find any info on this one...

CLA 45 Engine running in period/ requirements any feedback appreciated.
 

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should be in your manual

According to the owner's manual, this is the recommended engine break-in procedure for our 2014 Mercedes-Benz CLA250. The condensed version:

  • Vary engine speeds for the first 1,000 miles.
  • Avoid driving at full throttle during this period.
  • Change gears before throttle is two-thirds of the way to redline.
  • Do not manually downshift to engine brake.
  • If possible, do not depress the gas pedal enough to cause a downshift.
  • Ideally, drive in "E" mode for the first 1,000 miles.
  • Do not drive faster than 85 mph.
  • Only allow the engine to reach 4,500 rpm briefly
 

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should be in your manual

According to the owner's manual, this is the recommended engine break-in procedure for our 2014 Mercedes-Benz CLA250. The condensed version:

  • Vary engine speeds for the first 1,000 miles.
  • Avoid driving at full throttle during this period.
  • Change gears before throttle is two-thirds of the way to redline.
  • Do not manually downshift to engine brake.
  • If possible, do not depress the gas pedal enough to cause a downshift.
  • Ideally, drive in "E" mode for the first 1,000 miles.
  • Do not drive faster than 85 mph.
  • Only allow the engine to reach 4,500 rpm briefly
basically go easy with it and don't go much further away from 4500rpms
 

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Discussion Starter #4
running in

Thank guys, have no manual at the moment as car is yet to be ordered. However thank for the heads up.

Never had a 4 cylinder Merc, had 8/6 cylinder Audi RS/S etc.

just had a brief look at a A45 AMG just delivered to my local dealership. Must say it looks stunning. Someone will be very happy picking that up this week..
 

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The break in steps all pretty standard across the brand

Just vary the RPMs and you should be good. Try not to pedal to the metal too much for the first bit :)
 

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The break in steps all pretty standard across the brand

Just vary the RPMs and you should be good. Try not to pedal to the metal too much for the first bit :)
And just what AMG driver doesn't want to immediately rev their car and give the neighbors for the next 5 miles down a heart attack? All the while sending enough tire smoke into the sky to change the weather forecast? :D
 

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And just what AMG driver doesn't want to immediately rev their car and give the neighbors for the next 5 miles down a heart attack? All the while sending enough tire smoke into the sky to change the weather forecast? :D
Haha so true. Thats why we have to learn to have control, it'll pay off in the end in a case like this. Better safe than sorry,
 
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