wwq5

Just got a new cls 63 AMG and accidentally went over 3000 RPM last night. I was wondering what effect will it has on the car?

thanks

bltserv

I asked this question when we tortured the brand new AMG`s at the AMG Challenge. The cars we were driving had under 1000 miles. Some had under 100. And we were beating them to the max. The response was. Those are "Suggested procedures for break in". In other words these cars are really capable of taking what you can dish out. But it is best to treat you new AMG nicely and do your best to take it easy while its new. But fear not. You have not caused any damage whatsoever. Enjoy your new car !!!

wwq5

phew.. it really takes a huge load off my mind.
thanks for the reply. was enjoying it so much last night didn't even noticed the RPM went that high up.

thanks again

MB_Forever

Just a few comments on the brea-in procedure, as I've read so much about this when I first purchased my car:

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......

RJC

Remember break-in affects more than just the engine.

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...

TREZ63

Do NOT baby you engine. But do baby the transmission. You can go as fast as you like and revv it as high as you like. AMG engines are all broken in before sale. But your transmission needs to be broken in properly. So don't down**** and hammer it superfast for a 1000 or so miles. For god's sake though, do not take it easy, your car will dyno low later for it.

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!

RJC

Is there any written and confirmed scientific data that shows a hard break-in for the first 1000 miles creates a more powerful regular production automobile engine than following the the manufacturers guildines?

MB_Forever

Here is one article discussing the topic:

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

AsianML

The engine is already broken in. However, the rest of the car likely isn't (e.g. transmission).

RJC

My former 06 E55 was broken in by the book and ran the second fastest time at the drags a few months ago against some of the memebrs here and it was the new owner's (Deaguero) first time dragging. I think some engines are just stronger than others right from inception. I wish we could get a former AMG engineer to tell us what their research really shows about this subject, as it sure would be interesting.

Jon2007E63P30

Yea, the output shaft of the engine goes into the transmission, so something in the tranny is trying to spin at 6000 RPM sooner than it may want.

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

MB_Forever

LOL, I remember that, but to my defense, that was only because I didn't know it was just a recommendation for "break-in" 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.....

BlackHammer

My break in was get in, wait for the temp to come up, and hammer it (repeatedly) when I picked it up from the transport with 126 miles on it (and if I think someone else did not have their way with it before me I am off my rocker...).

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

TREZ63

How many HP do the Toyo Tires add?

clos

Listen to qoute one of the best drivers I have ever seen;

"drive it like you stole it, and if you ain't first your last"

Ricky Bobby

Enough Said
Clos

Schiznick

[QUOTE=TREZ63;2586036]Do NOT baby you engine. But do baby the transmission. You can go as fast as you like and revv it as high as you like. AMG engines are all broken in before sale. But your transmission needs to be broken in properly. So don't down**** and hammer it superfast for a 1000 or so miles. For god's sake though, do not take it easy, your car will dyno low later for it. QUOTE]

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.

RJC

[QUOTE=Schiznick;2587063]Good to finally hear from someone who's been to AMG and seen the process...

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!

E55texas

**** the guidelines, HAMMER on that *****, it is dyno proven.

MB_Forever

I thought they make as much money on service as they do selling the car

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

ItalianStallion

On both the CLK500 and SL55, I did multiple 0-120 runs within the first couple of hundred miles. I'd do a nice run, let it cool down and cruise, then get right back to it. How can you resist with that much torque anyway? Lol

And my CLK500 is one strong ****. The SL55 was an animal as well.

Schiznick

Very scientific......

FastDonzi

i really think that AMG breaks in their engines on dynos prior to to installation. in my opinion i think 6-8 heat cycles is enough for break-in. i would venture to say they take the same precautions for the trans.

Schiznick

You are certainly free to think that but they do not. Ask anyone that has been to visit AMG and they will tell you that every engine is not run on the dyno except the 65's.

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

Jon2007E63P30

Particularly since the LSDs on the 65's and others come with special breakin additives.

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.

Schiznick

Again, more incorrect information. I was all around this issue when I had my original LSD fluid changed back in 05 with my SL65. I spent quite a bit of time talking to an AMG engineer about this topic since I think I was one of the first to get the fluid changed and none was in the country yet. At that time I had to wait to change the fluid and was concerned about how long the initial fluid was in the differential.

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