manual says thermostat housing unit has to be changed if you need to change thermostat, and that you cannot seperate them. then how come i can buy seperate thermostat from small motor factor shop? can thermostat be changed once housing is removed?
I have taken the liberty and copied your question into the cars section [take a look] this section is for motorhomes & caravans and I don't think the Modeo fits either description. You will have more luck and quicker replies in cars section and as you're a taximan time is money right!.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix caravans/motorhomes.