CL65 M279 Stock Turbos - length of reliability question
Thread Starter
Junior Member
Joined: Jun 2008
Posts: 55
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From: The Beach, SoCal
'08 CL65 AMG Prior Design Wide Body
CL65 M279 Stock Turbos - length of reliability question
Curious as to how long people believe the stock turbos last from a mileage perspective before they fail.
My experience at Weistec has been amazing and I'm considering internal upgrades on the stock turbos as a preventative measure.
My experience at Weistec has been amazing and I'm considering internal upgrades on the stock turbos as a preventative measure.
MBWorld Fanatic!
Joined: Nov 2010
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From: Welwyn, Herts, UK
2006 S600
Turbos last a very long time if the engine is well-looked after.
If they fail, it's usually because of poor lubrication, cooling or filtering elsewhere, rather than because they run out of life.
It's important that you let the turbos cool down for a few minutes before shutting down, otherwise they're kinda bob-proof.
I have a V12TT at 165k miles, and I've had both turbos out recently.
Nick
If they fail, it's usually because of poor lubrication, cooling or filtering elsewhere, rather than because they run out of life.
It's important that you let the turbos cool down for a few minutes before shutting down, otherwise they're kinda bob-proof.
I have a V12TT at 165k miles, and I've had both turbos out recently.
Nick
Member
Joined: Sep 2009
Posts: 107
Likes: 17
From: Chicago
'06 SL65
I second Nick's evaluation. I have only owned turbocharged vehicles my entire life. With a combined mileage of close to 1 million miles, and I have never replaced a turbo for wear. Turbo longevity is more operator dependent than mileage dependent. If you keep surging to a minimum, maintain EGTs in check, and cool them down before shutdown, they will live a long time.
Thread Starter
Junior Member
Joined: Jun 2008
Posts: 55
Likes: 5
From: The Beach, SoCal
'08 CL65 AMG Prior Design Wide Body
Turbos last a very long time if the engine is well-looked after.
If they fail, it's usually because of poor lubrication, cooling or filtering elsewhere, rather than because they run out of life.
It's important that you let the turbos cool down for a few minutes before shutting down, otherwise they're kinda bob-proof.
I have a V12TT at 165k miles, and I've had both turbos out recently.
Nick
If they fail, it's usually because of poor lubrication, cooling or filtering elsewhere, rather than because they run out of life.
It's important that you let the turbos cool down for a few minutes before shutting down, otherwise they're kinda bob-proof.
I have a V12TT at 165k miles, and I've had both turbos out recently.
Nick
So when you guys refer to "cooling" the turbos down, are you referring to simply letting the car idle for 5 minutes before shut off?
Last edited by slowdiver; Mar 3, 2018 at 08:52 PM.
Member
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It is said that the M279 turbos are capable of flowing similar amounts of air as the black series turbos as they are more or less identical. I was told that they are able to deliver around 800hp (crank) with just a downpipe and ECU tune (maybe a slight update of the intercooler system as well) Can anyone confirm this to be true? Is it possible to plug and play them on a M275 engine? Sorry for the slight off topic, I did not want to open a new thread for this question.
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2006 W221 S500L M273
Member
Joined: Sep 2009
Posts: 107
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From: Chicago
'06 SL65
"EGTs" are Exhaust Gas Temperature. They are commonly measured before the turbocharger or after the turbocharger.
Last edited by PrecisionEngine; Jul 3, 2018 at 08:23 PM.
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Joined: May 2015
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From: Miami, FL
2003 CL 600
279 turbos will bolt right on to a 275, same engine/head. The exhaust outlet may be slightly different but I think where it meets the downpipe is the same. I've replaced turbos on a 279, they look exactly like the 275 units from what I could see, although I didn't have them side by side to compare sadly.
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Well, I was confused as well but in case the turbos are technically identical to the black series turbos it might be possible. Renntech gets 800 crank hp out of the SL BS as well.
I got the information from GAD Motors and although I have no personal experience with them, real life performance doesn't lie. And boy do their cars deliver in real life, they build the fastest Mercedes cars in the world. So it's safe to say they know what they are doing. And the statements I got were very conservative as I was told the M275 turbos have trouble hitting the 700 crank hp mark, no matter what you do to the car. The exhaust side just kills all efforts to go any further. So they definitely seem to know what they are talking about.
I got the information from GAD Motors and although I have no personal experience with them, real life performance doesn't lie. And boy do their cars deliver in real life, they build the fastest Mercedes cars in the world. So it's safe to say they know what they are doing. And the statements I got were very conservative as I was told the M275 turbos have trouble hitting the 700 crank hp mark, no matter what you do to the car. The exhaust side just kills all efforts to go any further. So they definitely seem to know what they are talking about.
Senior Member
Joined: Oct 2004
Posts: 471
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From: Germany
SL65 R230
Yes, this special one off white SL65 BS from Renntech from the old RT-Days was advertised with 800 or 805 Crank HP. But this was never confirmed or proved with results.
I highly doubt it and without machining the Turbos and change the internals it is not possible in my opinion.
GAD-Motors is the best adress for Mercedes High-HP builts. My picture in the Avatar is my SL in their Headquarter, Stuttgart Germany, while upgrading my Intercooler-Pump.
I highly doubt it and without machining the Turbos and change the internals it is not possible in my opinion.
GAD-Motors is the best adress for Mercedes High-HP builts. My picture in the Avatar is my SL in their Headquarter, Stuttgart Germany, while upgrading my Intercooler-Pump.
