P0299 in 2009 ML320 Diesel - Mercedes-Benz Forum
 
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post #1 of 2 (permalink) Old 06-02-2018, 06:24 PM Thread Starter
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P0299 in 2009 ML320 Diesel

Hi. I have a 2009 ML320 Diesel. It recently started have a problem where it would not rev above 2900 RPM. When I restart the car it goes back to normal. This appears to occur randomly when I accelerate and it shifts down all of a sudden it goes into this limp like mode. The gears change fine but the car simply won't go over 2900 RPM. When I connect OBD scanner I get error P0299. Any insight into the problem would be greatly appreciated.
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post #2 of 2 (permalink) Old 06-02-2018, 09:25 PM
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Start with checking for leaks in intercooler system.
It will show up as oil smudge.
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