*** Another tip for heat management ***
After doing some research I found that Star Diagnostics can be used to "tweak" the fan turn-on setting. Since I was going to get my UHI phone kit and VR module installed tonight by Steve I asked if he could make the "tweak" for me...
We discovered that the Star Diagnostics allows you to change the fan turn-on temp 0C - 10C BELOW the factory setting (I dont know what the exact factory temperature is that the fan gets activated at).
-0C is the default.. I had Steve set it to -10C.. My fan now turns on -10C earlier and man is it alot louder now.. I think it also adjusts the speed because I've never heard the fan scream so loud before.
Anyways.. My car seems to have been running at 100C whenever I was on the throttle.. It would settle down to 95C if I just cruised but the minute I accelerated it climbed back up to 100C.
Tonight on the drive home (35km) I was on the throttle the whole way.. The engine temp never went above 90C !!!!!!
I guess that 10C setting really does work!
Next time any of you are around Star Diagnostics, I would recommend you change this setting. You modified boys (EVO Stage 2, 3 and Kleemann 2, 3) would benefit the most from this.
Just thought I would share...
I'll see if my tech can find it. Any tips on where it's at in star?

Trending Topics
I dont remember the exact menu it was in, but, I will get the location of this and post it for you guys. On my car it made a big difference because it liked to run on the hotter side..
The biggest change you will notice is when you park the car.. If you get out of the car while it is running and the fan is on, it sounds like the turbine engine on a plane spinning up... It's quite loud now.

I will post the location later today if I can get it confirmed.
The Best of Mercedes & AMG
Thanks for the infomation. After reading your post, I was able to arrange for an appointment with Steve to adjust mine this Saturday while he is in the Los Angeles area.
How is the EVO cooling upgrade working out for you? I'll probably pull the trigger on that in the spring when the temps start to go back up -- I just realized how stupid that sounded.
Where I live, the average high temp rises from 66 degrees in January to 84 degrees in August. Nothing like what you must experience. -Mark.
In case I don't get the info confirmed before then, please post it up for the rest of the guys.. I think if you can get the menu hierarchy that he goes into that should be enough for a dealer to be able to find it.
EVO cooling system is great. Had a pump failure but other than that it works great.. I had data logs that showed IAT within 10C - 15C of ambient temps.
When they are ready with the SLR intercoolers they are going on my car also.. Both systems together should put IAT at least at ambient or maybe even below...

Yeah.. You L.A. boys are really lucky.. It went down to -40C with windchill here last winter.. How's that for cold ??

Hope to hell it isn't a really cold winter this year...
Thanks for the infomation. After reading your post, I was able to arrange for an appointment with Steve to adjust mine this Saturday while he is in the Los Angeles area.
How is the EVO cooling upgrade working out for you? I'll probably pull the trigger on that in the spring when the temps start to go back up -- I just realized how stupid that sounded.
Where I live, the average high temp rises from 66 degrees in January to 84 degrees in August. Nothing like what you must experience. -Mark.
Last edited by vrus; Oct 19, 2005 at 01:41 PM.
Mine is still consistently 10C below what I normally ran at. I am seeing 85C - 90C on my temp display where I was getting 100C before.
Yup. I have the Evosport headers. I am looking to buy a set of Kleemann headers to test on the dyno and see how they compare to the EVO ones.
I'll take a stab (a guess) at answering your question. The answer is: it can't hurt.
Someone will correct me if I'm wrong, but here was my thought: I believe that the coolant (at stock) is shared between the engine and the intercooler. (I seem to remember that the EVO cooling upgrade separates the two and, with the EVO system, the intercooler has its own coolant). I don't have any cooling mods on my car. Anyway, in my mind, I figured that I would see a benefit in performance by lowering the temp of the coolant used by the intercooler. (Even a small benefit would be great because the cost was negligible.)
But it I'm wrong
the best answer still is: it can't hurt. Yup. I have the Evosport headers. I am looking to buy a set of Kleemann headers to test on the dyno and see how they compare to the EVO ones.
Btw closer to spring im planning on getting slightly used 05 E55 + kleemann mods... :v it will stay for a long time tho!
While I'm generally happy to take credit for somone else's idea, I got the idea from you when you made your original post on this thread:
Btw closer to spring im planning on getting slightly used 05 E55 + kleemann mods... :v it will stay for a long time tho!
The headers have a thermobaric coating on them which help to contain heat so I know it was better than the stock headers but I have no concrete #'s to share.
E55 + mods is the way to go.. Forget the E63.. Pickup a used E55 and go nuts... By then a few other products will be on the market to push power well into the 700hp range.
Talk about tire-shredding fun...
After doing some research I found that Star Diagnostics can be used to "tweak" the fan turn-on setting. Since I was going to get my UHI phone kit and VR module installed tonight by Steve I asked if he could make the "tweak" for me...
We discovered that the Star Diagnostics allows you to change the fan turn-on temp 0C - 10C BELOW the factory setting (I dont know what the exact factory temperature is that the fan gets activated at).
-0C is the default.. I had Steve set it to -10C.. My fan now turns on -10C earlier and man is it alot louder now.. I think it also adjusts the speed because I've never heard the fan scream so loud before.
Anyways.. My car seems to have been running at 100C whenever I was on the throttle.. It would settle down to 95C if I just cruised but the minute I accelerated it climbed back up to 100C.
Tonight on the drive home (35km) I was on the throttle the whole way.. The engine temp never went above 90C !!!!!!
I guess that 10C setting really does work!
Next time any of you are around Star Diagnostics, I would recommend you change this setting. You modified boys (EVO Stage 2, 3 and Kleemann 2, 3) would benefit the most from this.
Just thought I would share...
https://mbworld.org/forums/showpost....0&postcount=10
I have read great things about Steve, so I assume that he knows what he is doing.
Can anyone explain this?
Does that make sense?
https://mbworld.org/forums/showpost....0&postcount=10
I have read great things about Steve, so I assume that he knows what he is doing.
Can anyone explain this?



)
