P2070
Thread Starter
MBWorld Fanatic!
Joined: Sep 2010
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From: Texas
2011 P31 C63 2015 CLA45
P2070
Powertrain Intake manifold tuning valve stuck open.
That's the fault code. No lights on my dash. Only found it through torque app. Scantool app didn't read it. Car drives fine. What do?
That's the fault code. No lights on my dash. Only found it through torque app. Scantool app didn't read it. Car drives fine. What do?
MBWorld Fanatic!
Joined: Jul 2012
Posts: 1,556
Likes: 15
From: Canada
07 E63 + 07 CLK63CAB
There are actuators on the intake that direct the air when the engine is at low rpm and then changes the flow to shorter more direct injection of the air mass at high rpm's.
These should be checked, apparently I have seen on this forum where the plastic rods break or become stuck, careful these are fragile, this could be your issue.
Worth a look.
These should be checked, apparently I have seen on this forum where the plastic rods break or become stuck, careful these are fragile, this could be your issue.
Worth a look.
Thread Starter
MBWorld Fanatic!
Joined: Sep 2010
Posts: 2,290
Likes: 4
From: Texas
2011 P31 C63 2015 CLA45
Thanks for the help. What are the consequences of this fault? It could be like this for thousands of miles prior. Only found out because I bought a reader. I'll just have it checked by the dealer.
Ps. I also tried clearing the code when engine was running. Was that bad? Should I clear codes only when it's off? Torque app didn't warn me. When I tried it afteron scantool and it warned me to turnoff engine before clearing.
Ps. I also tried clearing the code when engine was running. Was that bad? Should I clear codes only when it's off? Torque app didn't warn me. When I tried it afteron scantool and it warned me to turnoff engine before clearing.
Last edited by khmergod; Aug 4, 2013 at 06:56 PM.
MBWorld Fanatic!
Joined: Jul 2012
Posts: 1,556
Likes: 15
From: Canada
07 E63 + 07 CLK63CAB
I would just check that the actuator and arm is working with a source of vacuum, then leave it alone after this test. If the car is pulling good at low speed as well as high rpm then all is well.
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Thread Starter
MBWorld Fanatic!
Joined: Sep 2010
Posts: 2,290
Likes: 4
From: Texas
2011 P31 C63 2015 CLA45
Still pulls strong as ever. Always chirp or spinning on wot. And still loud as f.
