Mercedes E320 Bluetec 2008 Turbocharger Under Boost Condition
10-15-2014, 08:00 PM
#1
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Mercedes Benz E 320
Mercedes E320 Bluetec 2008 Turbocharger Under Boost Condition
I have Mercedes E320 Bluetec 2008. My engine lost power and gave me codes that it has turbocharger under boost and over boost condition. I went to Mercedes for diagnostics and replaced Pressure Boost Sensor as diagnostics show. After replacing sensor nothing changed. Can anyone give me a hint what should I check next? Thank you.
10-16-2014, 06:56 AM
#2
Out Of Control!!
I can't believe the company was an authorized MB dealer----Take the car back to the company that did the diagnostics as they did not solve the problem!! It's their problem not yours!!
PS---does this have anything to do with your yesterdays post and your misunderstanding of your car!!
PS---does this have anything to do with your yesterdays post and your misunderstanding of your car!!
Last edited by Plutoe; 10-16-2014 at 06:59 AM.
10-16-2014, 10:53 AM
#3
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I agree with Plutoe. Find a real mechanic - Mercedes or not - and have a diagnostic. Seems like most dealers and "mechanics" now are just parts changers. My FIL (RIP) was a Ford mechanic...you could start to tell him a problem based on symptoms and before you were finished explaining he would give you two or three things to check. The one he stated was most likely the cause - was the cause 99% of the time.
10-16-2014, 11:48 AM
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Mercedes Benz E 320
Thank you guys. I thought the same. Dealer wants to charge for diagnostics every time you come. I will try to get it again since diagnostics were inaccurate.
10-17-2014, 12:05 PM
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2007 E320 Bluetec, 2007 ML320CDI
I had an a similiar issue on mine, it would go into limp mode. It had a code for too low boost pressure. The morons at the dealer tried to tell me it needed intakes and a "possibly" a turbo charger, all for the low, low price of $5600. I am glad I got a second opinion, it was the right side inter cooler hose, it had a hole/leak on it, $250 to fix. All good now. The moral of the story, stay away from dealers with diesel's, they are absolutely incompetent. Find a good independent shop that knows diesels and turbo.
10-18-2014, 07:46 PM
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Mercedes Benz E 320
Mercedes E320 2008 Turbocharger Underboost/Overboost Condition
I have underboost/overboost turbocharger condition. What can cause it? I replaced turbocharger pressure boost sensor and checked pipes and hoses, everything seems in place and no cracks or holes. Turbocharger actuator was broken and I send it to europe and it was fixed. I place it back and problem didn't go away. Does anybody knows what can cause the actuator not working right? Where can I buy new turbocharger actuator? Thank you!
