Reckless

What does your engine temperature normally run? Mine sometimes fluctuates between 80-95 C. I notice it gets a bit cooler when I am pushing the car a bit faster.

How bout gas mileage? I am currently getting about 200 miles per tank. I believe the gas tank is 20 gallons. I am pretty heavy on the throttle and like to floor it alot (the power is addictive).

Oxygen

Temperature runs between 80˚ and 95˚ like you said. It's about 20˚F outside so sometimes it hangs out a little lower than 80˚.

Highway driving @ 75MPH - 22.0MPG
Stop and go traffic - 11.0MPG

whoover

Temp sounds fine, but the mileage sounds a little low. Mine is an S65 so it's not exactly the same, but your style can't get much more aggressive than mine and hold onto your license for long and I get around 13 MPG. The tank holds 23 gallons, but I usually fill it when it's a little less than 20 down and have about 250 miles on the tank.

I've heard that the S600 is a little less fuel-efficient that the AMG, but 10 mpg sounds a bit low.

Oxygen

I'm not sure how a 6.0L engine can be more fuel efficient than a 5.5L engine?

whoover

MB quoted a higher mpg for the 2006 S65 than the S600. (I think they still do.)

There are lots of ways that a modified 6L engine can be made more efficient under partial, cruising load than a 5.5. Different boost curves, different fuel and timing maps, improved flow heads, different combustion chamber geometry. There are a lot of differences in the engines. Engineering for higher output can easily improve efficiency. Displacement is just one part of the equation.

whoover

http://www.fueleconomy.gov/feg/calcu...enz&model=S600

http://www.fueleconomy.gov/feg/calcu...odel=S65%20AMG

silver65

80-95 on mine also and I even have an extra intercooler. The motor runs stronger the closer to 80 it is. I would really like to find a way to keep the temp close to 80 all the time. I find if it's cool out, and I turn on my defroster, the temp comes down about 10 degrees Celsius. Never lower than 80. But I'm in South Florida. It doesn't get cold here too often.

80=176
85=185
90=194
95=203

13.9 all around mileage. I can get close to 21 when cruising.

Reckless

whoover: I have gotten more than 50 speeding tickets in 8-10 different counties before I bought my first valentine one (I had whistler, escort, bel, cobra prior). I usually drive 120 mph on my way to work and back. Suprisingly my insurance rates are pretty low (I pay $600 a year for the 600).

silver: Cory from Kleemann warned me not to try to cool the engine as that will mess with the ECU esp in colder climates. He said something about a thermostat in order to cool it.

I find it a bit annoying have to fill gasoline everyday... in my bmw v12 I could get close to 400 miles per tank. I describe the benz as the one that drinks gasoline like its coca cola.

Any of you guys thinking about the Kleemann LSD... with soo much power to the wheels, I'd like less wheel spin.

whoover

I have done a few stretches at considerably higher speed, including about 100 miles on I-5 where I averaged 120. For about 25 miles of that, a 997TT and I sustained 145 indicated. But even on that run I never saw 10 mpg.

I'm just answering your question, not looking to compete. Maybe at high speed the consumption difference between the S600 and S65 is more dramatic than the EPA numbers would indicate. I just know that in 30,000 miles I've never seen lower than 12 mpg.

Reckless

whoover - thanks, I appreciate your input! I forgot to consider that since its a really cold winter and the benz takes a minute to warm up that I have let it warm up for 20-30 mins a tank. That's probably why my mileage figure is low. I am going to watch it next few tanks.

Also, since its a biturbo car - do you guys start wailing on it before the engine fully warms up or let the turbos warm up a bit?

silver65

I always allow the engine to warm up for a few minutes before driving. Cold or hot weather included.

Oxygen

+1... always let her warm up.

Also don't forget about turbo cool down... I usually let it idle for about 20 seconds before turning the car off.

Reckless

I asked Cory at Kleemann about turbo timers and he said that Mercedes uses oil and water to cool the turbos. He mentioned that there are after-run pumps which circulate coolant when the car is parked.... effectively acting like a turbo timer.

Oxygen

Here is the M275 V12TT passenger side turbo... please show me the water cooling:

Reckless

I'm not a mechanic so I wouldn't know anything but the two thin pipes going into the turbo look similar to one of my water cooled heat sinks on an old CPU. I imagine it is oil cooled not water cooled.

Oxygen

Yes... the metal tubes are for the oil... used for cooling and lubrication of the turbos. There is no water cooling on these KKK K24 turbos.

bp95gsx

Those are some sexy pictures! Any more detailed pics of the S600 engine?

Oxygen

Reckless

SWEET PHOTOS!

Oxygen

That's the only kind I post.

Vadim @ FD

Reckless: If you have over 60K miles, the thremostat gets lazy and in below 50F weather car will never let engine warm up. It will stay at 80C. - proper temp is at 90C.

My mileage is 14 city/22 hwy.

Oxygen

After 60K miles, do you recommend replacing with an OEM thermostat or is there an aftermarket alternative?

Reckless

Does anybody have this problem where they will be driving their 600 and hanging around 3-4k rpms and the pre-safe disengages because of abrupt shifting?

whoover

Anything involving Presafe needs to be checked out. That is not normal operation. You should also have them look at why your LEDs don't light when you raise the car. LEDs don't burn out, so some control logic is not working properly. Any sign of ABC problems should be checked before they become dangerous or expensive.

Reckless

The LED's work fine (I just noticed some little leds on the bottom of the switch and was wondering what they are for). I think the ABC lift operation is the coolest thing... I wish it had even more settings.

The dealer resynchronized my Presafe once. I wonder if it's my driving style that is causing the problem (I'm used to being a lead foot and keeping the rpm's a bit high).