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Tarmacterror

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    Heaters Help!

    in BMW 5 Series Forum

    Posted

    Hah I like that I love polar bears

    If the first method isn't working then try the 2nd listed here.

    How to bleed the cooling system.

    1.Jack the front of the vehicle up onto stands as high as possible,

    2.Turn the ignition on to Aux 2, Engine OFF, heater on fan setting 1 and temperature fully hot,

    3.Remove the rad cap/expansion cap,remove the bleed screw from the radiator and IF you have them the bleed screw(s) from the thermostat housing/top hose, return pipe or EGR thermostat.

    4.Fill the radiator/expansion tank up and keep pouring till there are no more air bubbles coming out from the bleeds, using a funnel that fits tight in the expansion tank neck and filling it full of water will help push any troublesome air out, when good you can then install the bleeds and tighten down(don't snap them),ensure the rubber O-rings/seals are still on the screws/on the bleed holes.

    5.Suck some water out so it's not full to the brim, start the car up and check coolant shoots out of the small hole on the inside of the expansion tank neck when the revs are held up, if it does then replace the cap and then run the car up and check for heat from the vents when the car is warm, then carry on and check if over heating still persists. You may have to bleed troublesome cars again afterwards.(but very rare).

    6.If all is good then check the water level again in the morning when cool.

    or

    Ignition on, heater set to hot, bleed screw out.

    Pull the top hose off the radiator. Pour coolant SLOWLY down the rad hose a litre at a time. When the coolant is building up in the hose, hold it above the level of the rad hose stub and keep adding it. When coolant starts to dribble from the rad, refit the hose. You may find that coolant starts to overflow from the rad cap orifice - if it does, just screw the cap back on. Once you've done that, the engine and radiator are full of coolant - the little air pockets that might be left will come through the bleed screw.

    After the vehicle is bled you should check that when the revs are held up you get a flow of coolant shooting out of the hole in the inside of the expansion tank neck, this will help tell you if the water pump is circulating, then run the car up and check the lower radiator hose gets hot.

    Heaters Help!

    in BMW 5 Series Forum

    Posted

    I had same problem on my 530 sport,I changed the radiator which was all blocked up from many years was told it was the original one! also replaced the thermostat and the heater resistor and it done the trick no problems after that. You could just try bleeding the cooling system who knows might just be a quick fix

    Fuel For My New Beemer

    in New Members Welcome

    Posted

    It's your call, ultimately. The fuel does have a lot of extra bells and whistles, but that's not to say 'ordinary' fuels don't. Most of the petrol and diesel fuels sold in the UK are formulated to clean and protect your engine – even the stuff sold at supermarkets. Some fuels are better than others, obviously, but if you value performance and economy there's probably no harm in investing in a fuel you think will give you the best value for money in the long term.

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