20 Most Recent 2005 Peugeot 405 - Page 5 Questions & Answers

I am not familiar with the 407 but I would think it is a HDi, if so what you describe is an air leak from a pipe from the pressure side of the turbo, I have had this on a Saab, in that case there was an over pressure switch under the dash and the pipe fell off. Look at the top of the engine, on the inlet side there will be a pipe from the inlet trunking or manifold, it should (maybe with a tee piece in there) go through the bulkhead

See if the door that diverts the air from the fan motor is changing from heat to A/C You could have a vacuum leak in the controls preventing the door from operating.

dealer can tell you..

Under stearing column, inside engine bay all over the place, least hand door recess.

this is the engine light and the CPU goes to limp mode to protect the engine/gearbox. Check oil and coolant levels and run fault codes to detect which sensor put the light on.

hi peter yeah it should have a small tank next to the filler neck under neath the wheel arch can b a bit tricky to do can b done with a squeasy bottle and a hose pipe best doin it on a ramp

hi robbiem i would change the module its fitted on to the motor 9 times out of 10 thats what goes first of all check the wires inside the rubber sleave that goes from the car body to the door it could b a broken wire

sounds like your control module is going out..its expensive to replace but the dealer will do it and they can reprogram the language also..

how do I lock crank and cam shafts to change timing belt

Go to your local parts store , I know autozone can print you up the firing order,