Mercedes Actros MP4 - MCM 660012 Error Code: Motor Flashes, Power Loss & Troubleshooting

In the Actros mp4 the motor flashes, there is a slight loss of power and the error code MCM 660012 is displayed. Any idea for the fault?

Hello, I have the same problem when it is hard up the hill after a long climb, the engine light comes on. MCM error 660012. The fault disappears when the car is lightly. Switching from normal to Eco driving mode helps, but going up the hill with Robur to Eco is paranoid. Nothing showed on the website. Someone something?

For me, the topic is solved, the Venturi tube is replaced and the problem is gone.

What tube replace?

Andik1313 wrote:

I have the topic resolved, the wenturi tube replaced and the problem disappeared.

Hello what tube you have replaced??? Thanks

I have a problem too. Replacing the turbo sensor did not help. All sensors have been replaced without improvement. Anyone have an idea?

Adrian.86 wrote:

Hello, I have the same problem when it is hard up the hill after a long climb, the engine light comes on. MCM error 660012. The fault disappears when the car is light. Switching from normal to Eco driving mode helps, but going up the hill with Robur to Eco is paranoid. Nothing showed on the website. Someone something?

Did you fix it?

Andik1313 wrote:

For me, the topic is solved, the Venturi tube is replaced and the problem is gone.

Try cleaning or replacing this tube as your colleague mentioned. At a friend's, after cleaning, the fault has ceased. Likewise, they changed the boost sensors, the turbines did not do anything.
Additionally, if the Mercedes is weak and smokes a lot, I recommend to plug the retarder (if any) and code it. At a colleague, after being blinded from 30/31, he went down to 27 with full charge.

What exactly are we talking about? About the EGR exhaust pipe or the turbo pipe?

Hello

I am fix this problem with the turbocompressor. I am changed the turbo and all is ok, the error code 660012 and the sensor B608 is due at the turbocompressor.

So, if I understand correctly, have you finally replaced the entire turbocharger? Was the turbo failure related to oil consumption?

I am changed yes the turbocompressor, 2 weeks all ok, after 2 weeks now today the same error come back.... i will change the tubes, but i don.t know wich tubes, the tube of turbo when is the sensor for turbo, or the tube after EGR. Some people can help me wich tube i can change?

Did DPF regeneration become more common than average? The AMC module interferes with the EGR control, the turbocharger may not have enough exhaust gas ... Check the data on the NOX sensors first!

aliveratrans wrote:

I am changed yes the turbocompressor, 2 weeks all ok, after 2 weeks now today the same error come back.... i will change the tubes, but i don.t know wich tubes, the tube of turbo when is the sensor for turbo, or the tube after EGR. Some people can help me wich tube i can change?

Is the turbopressure control unit (A0001531559) fault not possible? my 1845 Actros, makes a mistake when the weather temperature is over 30 degrees Celsius. I suspect the pressure control unit will malfunction due to heat.

I had the same errors and it turned out that AdBlu injection was pouring, it led to clogging of the muffler. I cleaned it and it's ok now.

The venturi tube is at the very front of the engine, the sensor is screwed into it from the top. The sensor is removed and cleans this small hole if I remember correctly.

I fixed this error after 3 months of trouble and after turbo and all sensors changed and failed. I changed the engine computer software and now everything is wonderful.