Hi BMW mechanics, i have a '89 535i auto... my vehicle has been overheating a fair bit recently so i decided to look at it myself..... i noticed a crack in the top radiator hose so i replaced it with a new one... i also replaced the thermostat, i then topped it up with water/coolant and ran the engine for about 15mins..... it seemed ok but how can i check the cooling system to make sure that it's running correctly?

not really a non running fan can cause overheating------ overheating problem --check fluid level--test coolant--check oil and coolant for mix problem ---water pump --etc

Hi,I have same vehicle myself and I work at the Bmw dealer.
Officially the 3.0D takes 7 litres when you also change the filter.0fficially but in practise its a bit less as,some of the old oil will always be left behind.
Buy 2x 4 litre containers of 5w 30 or 0w40 ,pour in 6.5 litres ,start the engine and stopped it and wait 5 mins for the oil to drain to sump and check level.You will find that the dipstick is on the MIN mark and you just fill it up until slightly over the MED mark.
DONT overfill...best to run it on MIN than overfilled.

Hi, radiator sealant is usually only good for sealing small leaks, did you top up the coolant level? Can you see where the coolant is leaking from? What vehicle is it?

For your make and model that is a way fair price. BMW seems to be a little more labor intensive them some other vehicles. But those recommended repairs are well worth it and help the longevity on your vehicle.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_677dced97ad9bddf

Relax it's just the overflow tube.

no. Replace idle control valve, icv tubes, any intake manifold gaskets, check for vacuum leaks as well.

If youy know nothing about it have it done or buy a sevice manual at auto zone

You may want to look at Auto Zone web site, the vehicle repair guide.
It described how to change the valve cover.
You could also go to the public library and check out the Auto repair section and photo copy the section with valve cover.
Also advance auto web site also have a vehicle repair guide section.
You can check it out and decide if this something you want to get involve in. It describe ever step that is involve.

Hi there, you are experiencing a water pump failure. this may be in conjunction with a faulty thermostat as well. i wouldn't drive this car until you replace the water pump and thermostat. it will only cause more internal damage. hope that helps and, thx for using fix ya:)

Hi,

Possible causes of overheating are:

• stuck thermostat. In my country, some mechanics even remove entirely the thermostat (not applicable on cold weather);
• faulty water pump;
• too soft radiator hoses (upper and lower);
• faulty/slow radiator fan. Again, in my country, some mechanics hard wire the radiator fan to be always on when the engine is running. In some cases, it could be the fan clutch.

This is of course assuming that nothing is internally wrong with the engine, the coolant level is as required and that there are no leaks, air bubbles and the belt driving the water pump is mechanically sound. In most vehicles, the radiator fan will not work if the A/C or heater is not working.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.