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I get this error code. the car performs bad at low rpm. Like there is no boost pressure available. At 2000+ rpm the car runs as it should.
Mechanic have changed a vacuum solenoid that controls the wastegate I believe (the one that can be seen in the top front of the engine).
But shouldn’t there be an additional one for controlling the valve between the low / high pressure turbine ? If so where is this located ? And can anyone provide a part number?
Are their any guided tests for the code? If you click the book icon in the upper right corner you can additional information like: wiring diagrams, connector pinouts, component locations, etc...
Post the question in diesel section for better exposure.
There is no wastgate on those engines, so the diagnosis sucks.
What is mileage, or kilometrage on the engine?
Sounds like your turbo is due for rebuild. Here is related video, who MIGHT apply
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
