Symptoms of a P0235 diagnostic trouble code may include: The code P0235 will be set which simply means that a problem exists somewhere within this circuit preventing proper boost control. Additional codes in progression may be set regarding this malfunction, each of which pertains to a section of the circuit. The engine may lack acceleration.
First, remove the exhaust pipe all the way to the turbo, so you can see the turbine wheel. This should look clean, with no carbon build up, scale or oil along the surface, and the blades should be free from cracks, wear and damage. Finally, you can check the turbo housing at the exhaust end for any cracks or leaks, which will also affect

Removing the turbo. First off, lets take the downpipe with catalytic converter. You will need to remove a plate held up by 4x 13mm nuts, once removed undo the 2x 13mm bolts on the exhaust clamp and slide the clamp along. Then remove the 2x 13mm bolts that hold the exhaust up these are at the back of the subframe.

Hi I have an s max 06 2.0L tdci wa6 103kw 140hp irregular turbo boost issue,turbo,maf sensor,map sensor,boost solonoid all replaced new,smoke test on vacuum hoses shows restriction flow on one way dia … read more

A Mondeo TDCi that refuses to start can be down to a number of issues. Firstly check for a faulty or badly connected battery. There may also be an issue with the alternator, fuel pump, or one of the sensors.
There must be a reason the car goes into "limp home" mode when you drive hard and not when driven "sensibly". One possibility is the variable vanes in the turbine are coked up / not moving to their fullest extent, the vanes control the boost pressure via the control rod and actuator, if these items are not attenuating boost enough it may cause
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mondeo tdci turbo failure symptoms