what happens when you don't break in an AMG machine?
First, you did not violate the recommended break-in procedure, which states that you should keep the engine RPM under 4500 in any gear and total vehicle speed no more than 85 mph. So 3000 RPM is still within the brea-in period.
Second, as bltserv stated, these cars go through very tough testing before leaving the factory, and there is hardly anything you can do that can damage the engine.
Third, most of the members here that drove their cars really hard from day 1 are the ones that are showing the highest dyno numbers
........ ask Trez63 (the highest dynoing 63 in the country
).Don't baby the car too much, so that the ECU will learn to give you max power most of the time......
Follow what the manufacturer suggests as 1) they know a hell of a lot more than ANY of us about preventing future issues and 2) they don't want to be paying for warranty claims, just as much as you don't want to have them. So if they say take it easy then just do it...Geez it's only +/-1000 miles...
Last edited by RJC; Jan 7, 2008 at 06:17 PM.
This fact has been known for a very long time in morocycle circles. Bike that are broken in hard always do better later on, car guys are just getting the idea now. Break the car in hard and it'll run like a race car later.
Enjoy it!
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http://www.mototuneusa.com/break_in_secrets.htm
But again, what's more interesting is this.......
the couple of members on this board who did follow an aggressive break-in period, also recorded some of the highest dyno results amoung the group!
Again, this topic is controversial and has been argued back and forth, so what I did in my break-in period is a little of both: followed the manufacturer's break-in somewhat and added a more aggressive driving here and there
The Best of Mercedes & AMG
It was funny how Mo (MB_Forever) is talking about violating the break in recommendations, but he was totally freaked when he found out he didn't get his limited slip diff oil changed per the breakin recommendations
It was funny how Mo (MB_Forever) is talking about violating the break in recommendations, but he was totally freaked when he found out he didn't get his limited slip diff oil changed per the breakin recommendations

Until just now, I thought it was supposed to be changed in order to remove the additives that were meant only for the break-in period. To my understanding, the normal engine break-in period is only a recommendation, right? I didn't change my differential oil until 7500 RPM and 8 visits to the drag strip
but no worries, I had the head AMG technician (also the shop forman) to personally inspect my differential and its internals just to be safe, and he said it looked perfect 
At the AMG Challenge, they had cars with only 100 miles on them and the AMG drivers were revving the engines like crazy around the track as well as red-lining left and right including an SLR

Also, notice I didn't say I completely violated the recommended break-in....... I just made it more aggressive (and a little extra exciting). I did it Mo style.....
Some say the stronger you run them (basically no "break in") the better they run. Unknown if any evidence if true or not.
All I know is 12.16 @ 114 (lots of 12.20's and 12.30's with a best trap of 115.6) and the car is basically stock (K&N/LOL!-- and Toyo Tires).
T
Who told you that AMG engines are all broken in before sale? They are dead wrong. Visit the factory and you will see that they are dry spun as a final QA check but except for the 65 engines they are not all run on the dyno.
Who told you that AMG engines are all broken in before sale? They are dead wrong. Visit the factory and you will see that they are dry spun as a final QA check but except for the 65 engines they are not all run on the dyno.
Follow the manufacturers guidelines as they know what's best to keep your car out of their service depts and they don't want them there any more than you do!

But seriously, all the cars that AMG took to the AMG Challenge 06 were very low mileage, and they were hammering the hell out of them. And I think in the Atlanta meet, they even dynoed a CLS63 later that week and it just happens that it dynoed very high as well
Last edited by MB_Forever; Jan 9, 2008 at 03:17 AM.
And my CLK500 is one strong ****. The SL55 was an animal as well.
And my CLK500 is one strong ****. The SL55 was an animal as well.
Very scientific......
How do you know 6 to 8 heat cycles is enough for break in? Do you even know what the block walls are coated with or what rings they are using or the piston coatings?
We are all free to do what we please and luckily our warranty is not voided if we don't follow their approch but I tend to believe that they know what they are doing.
These are not 69 small block 327's. The technology in these engines is quite impressive.
It has been said in a couple of place and by AMG that break in is a much about other components than it is about the engine. I know two people that has LSD issues on SL65's that didn't follow the break in and have their gear oil changed. The whine was so bad at 4K and 5K miles that they had to have them replaced.
Everyone has an opinion on this topic, it is just bad to give people that don't have any idea the wrong message about break in.
My .02
I did this oil change myself (yes I know the dealer was supposed to do it for free). The oil coming out matched the color of my flint grey E63. The oil going in was a nice clear wesson oil color.
I did this oil change myself (yes I know the dealer was supposed to do it for free). The oil coming out matched the color of my flint grey E63. The oil going in was a nice clear wesson oil color.
LSD's from AMG do not come with break in additives. They use the same differential fluid for the initial fill as they do for the refill after break in.
The change in color that you noticed in the fuild is the reason we change the fluid after break in. Get all the initial gear run in bad stuff out



