406oc.co.uk

hi guys plz help , my 406 HDi 110 2001 320k , i notice lately oil pressure light can stay 1-2 sec after cold startup , after that when i park the car about 3 to 4 hour the light comes off immediately during startup as it should be ,is this normal? or is it a bad oil pressure sensor ?

You have an oil pressure light? My HDi didn't so I assumed none of them did. Is it clattery when the oil light is on? Without an accurate way of measuring the oil pressure your safest option is to change the oil and filter. I'm not sure if they have them any more but I've had issues in the past with the bypass in the filter jamming open, so if it's not long had an oil change you should at least change the filter.

thanks for your reply, yes for the old model 2001 have oil light can ,and i forgot to mentioned that when oil light stay 1-2 sec a "STOP" light flash real quick

please guys anyone can help me with this problem ?, somebody said to me it is theEngine Oil Bypass Valves stuck open that is why oil drain over night to the sump ,so do i have this valve?

Apparently oil filters do still have a bypass valve inside them so yes, as above, change the oil filter.

thanks man , i'll try that and i'll keep you posted.

As long as you don't rev it while the light is on it shouldn't do much if any damage but I would agree - oil and filter change.

Peter

thank you all guys i really appreciate your help,and yes you were right ,i changed the filter and switch to thicker oil 15w40 solved the problem.