Hello, 

I kept getting this error for few months. 




I replaced the Manifold and the Turbocharger.

Also the throttle-body seal.

After replacing them the performance was very good for 2 months. But I start getting this error again. 

Do you have any suggestions? do you think shall I change the air-pipe ? or any sensor ? 

Check the brake servo vacuum pipe for splits at the joints, brake servo end, inlet manifold, there is a non return valve in between, can also split there, basically check its integrity along the entire length.

 

A simple first check is after turning off the engine, wait 2 minutes and then press the brake pedal. If the pedal feels normal, and there is assistance still available (a soft shush as you push indicates vaccum being released as assistance is applied). You should be able to do this at least twice before the brake pedal action becomes hard. If there is a leak, the pedal will feel hard on first application with no assistance available. You still need to check the section between the inlet manifold and the non return valve though.

 

The vaccum pipe is shiny hard plastic about 10mm diameter, attached to the inlet manifold at the front right hand side of the engine and goes round the right hand side toward the bulkhead, the non return valve is around halfway from front to back.

 

Thanks very much @xman


I will check it ..

I would like to share the fault details as well 

 

18950 - Leak in Air Intake System 
          P2279 00 [237] - -
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 4
                    Mileage: 222211 km
                    Date: 2022.01.31
                    Time: 17:29:26

                    Engine speed: 3907.00 /min
                    Normed load value: 99.6 %
                    Vehicle speed: 103 km/h
                    Coolant temperature: 96 °C
                    Intake air temperature: 43 °C
                    Ambient air pressure: 990 mbar
                    Voltage terminal 30: 13.923 V
                    Unlearning counter according OBD: 40
                    Mass flow through throttle valve: 363.1 kg/h
                    Median injection timing: 6.779 ms
                    Engine operating condition: Part. load
                    Engine operating condition-Test_Program_Channel 87: 6