How do you remove the heater matrix on a peugeot expert

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This information will be contained in the owner manual, which can be downloaded from here:
http://www.repairservicemanuals.com/Peugeot/

sounds like you have an air blockage in the pipes to the heater matrix, you need to undo the outlet, under the bonnet and start engine, put blower on full, let water come through. You will need to keep an eye on your water level, dont let it go down too far.

it could be a slight leak from the heater matrix (check for damp in the passanger foot well) its self or the thermostat may be sticking this may cause the bottom hose to stay cold. you could try removing the thermostat and running it without it and then putting a rad weld in the coolant system to seal the matrix.


let me know if this helps


cheers big mike

well if you can get at it yes, if not i would just put on some radiator stop leak, (ford's put it in brand new van to stop any water leaks) it should last a fuw years or so?

Hi ,
you need to check the air pipes from the turbo as it sounds like you`ve blown a pipe they fail due to oil inside,quite a common problem and not expesive to fix

low water clogged heater matrix or head gasket, take rad cap off, start engine, if bubbly then head or gasket, if all fine you need a matrix, this is very common to leak or clog, things like rad weld blocks them in months to come.

check yhe fuel filter is it new if ok check the fuel pump or lift pump that may bre your problem

check the water pump

Hi, I have a 2.0HDI Expert which was doing the exact same thing as yours, blowing thick black smoke, sluggish and loss of power on gradients, a hissing sound and surging. I replaced the air flow meter but that didn't help. I was told to replace the turbo but a turbo expoert told me not to as it would blow white smoke if it was faulty. I was then told to replace the injectors but a diagnostic test showed them to be functioning fine. I was then told to look at the intercooler which had thick sludge at the lower left pipe. I replaced it today - Sunday 12th July and it is now driving like a new van. It now pulls me up gradients with ease in 4th and 5th instead of having to drop gear to get to the top. I got a replacement from Euro Car Parts for £147 inc VAT. To tell if this is your problem, look through the gaps in the lower section of the bumper at what looks like the radiator and look for sludge over the inside of the bumper and all over the pipe where it joins the back of the radiator (intercooler). Also open the bonnet and look down behind the grille for the same sludge. Hope this sorts it for you. Barry, Newtownards, Northern Ireland.