M275 V12 Bi-Turbo Platform Technical discussion relating to models sharing the M275 V12 Bi-Turbo (V12 TT). Including SL600, SL65 AMG, CL600, CL65 AMG, S600, S65 AMG.
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2005 S600 Eurocharged only making 12psi

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Old Aug 9, 2019 | 09:01 PM
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Pocketzest's Avatar
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C240 Wagon 6spd, 2005 S600, 2002 CLK55
2005 S600 Eurocharged only making 12psi

I can't seem to make more than 12psi. From my understanding the car should make 1 bar stock and 1.5 bar with the tune so it seems like I'm down about 10lbs. Was wondering if anyone with a eurocharged tune could confirm these boost numbers. My car seem to make a metric ****-ton of torque but no power. Boost starts falling off as soon as it peaks. I've pressure tested the system and it doesn't seem to leak. My iats are around 115*F while cruising and 140*F after a pull on the highway, which seems pretty decent. Car just hit 100k. No cel, no codes, nothing. Afraid it's my turbo seals but I haven't noticed any symptoms leading me that way. Just wondering if anyone has any input.

Thanks,
Pockets
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Old Jan 28, 2020 | 08:00 AM
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From: New Orleans, La
2005 Mercedes S600
I'm no expert but coming from a biturbo Audi s4 to my s600 boost leaks were an absolute nightmare and caused similar issue.
Turbo seals are usually indicated by oil smoking via the exhaust.
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