Well the rad couldn't hold any coolant for longer than about 15 minutes before so its done well to last another 10 months with radseal. I'll have to sort out a new rad at some point by the sound of it
yes fuses in the main fuse box under the bonnet.thought I would check mine, went to the shops came home and let the car run outside for 10 mins max, put the aircon on and the radiator fan never moved....... then all of a sudden the coolant pished out of the expansion tank, so what should I check first?
yes fuses in the main fuse box under the bonnet.
did the fan not come on at all even when the coolant pished out? does the fan ever come on?
The cooper has a flip cap the cooper s has a screw cap which is a pressure cap and its crap , if only there were 4 components that fail : the pas fan on early cars if jammed would blow a fuse , through a mastery of design the same fuse runs the cooling fan for the rad .hey guys, the problem with radseal is basically what it says on the tin. it seals your radiator with gunky gluey stuf and blacks up any holes but in the process blocks up nearly half of the raddiator channels where the water passes through hence why you have problems after you have put radseal in.
the best soloution is a new radiotor i paid like £70 ish for mine because coolant level was dropping and noticed tiny leaks until it got bigger and just poured out.
i know many of you say mini cooling system is crap with regards to the plastic cap on the expansion tank, but the expansion tank is not pressure regulated its literally in normal peoples terms an "overflow" tank when there is too much coolant in the system hence the plastic cap.
the mini cooling system which i found out my self has 4 main components which can fail:
1. fan - low speed mainly (which is the MOST important, with out this your whole system will be knackered)
2. leaks - thermostat housing (cheap replacement part) radiator lower hose and expansion tank and hose
3. need proper green coolant from bmw or local parts shop make sure its green not blue will help cool the engine and take care of it because of its ingredients
4. head gasket failure - simple check open oil cap if creamy looking then headgasket is allowing water to leak into the engine
number 1 is the most common and most important role in the cooling system without this and without checking this first you will get NO where believe and your problems will continue as i have found out for the past 2 years.
how many plugs do you have the leads into the fan loom at the top? there should either be 1 big plug? or 2 plugs 1 big and 1 small... if it has 2 plugs then no resistor was installed because this need to be done near the resistor. but if it has 1 plug then possibly a resistor was installed, but 2 wires should be comming out from the plug.if it is the loom that runs across the the top of the air intake pipe (front of the bonnet area) it has been previously tampered with cos they is electricians tape on the wire just where the passenger light is, was gonna get the psp replaced and tracking done on Wednesday, looks like I,ll have to phone my mate and get him to do this first
oh ok did not know this i aplogise, because im only running a ONE atm but now the little bro going away to uni i can sell and buy an SThe cooper has a flip cap the cooper s has a screw cap which is a pressure cap and its crap , if only there were 4 components that fail : the pas fan on early cars if jammed would blow a fuse , through a mastery of design the same fuse runs the cooling fan for the rad .
The rads split at the plastic join on the side , this leak is hard to spot , the fans control temp can go random from the control unit , the header tanks split at the seam and loss of pressure and coolant , the water pump on the back of the charger can have a drive failure , loss of charger belt = overheat , even when all is working the cylinder cooling is not even across the engine
SO other than the pump ,the rad ,the stat , the fans, the header tank , the tank cap , the gauge, and the control unit - it's a great system a design marvel .....