91bmw 3181 coolant drained. Connection fr rad to motor appears to have broken at motor. Not enough to connect back up. Piece on motor too short. Is it much work to replace the piece on the motor

Should be a drain plug at the bottom of the radiator, if not you can disconnect the lower rad hose at the radiator. Remove filler cap to allow air in as coolant drains. Catch and dispose of drained coolant as it is sweet and animals will drink it and die

depending on year the rad will have a drain tap , if not then take of the bottom hose briefly, letting out enough coolant for your need, make sure you catch the coolant as is toxic and spills can easily be drank by wildlife

in my experience i would have just changed the head gasket instead of putting in a new motor

anyway there could be an air pocket in the engine or rad what i would do is

1 drain the rad by drain plug located at the bottom of rad on left or right side looks like a valve
2 start the car and slowly add 50/50 antifreeze to the rad
3 once rad is full open and fill coolant bottle
4 watch temp to see if it goes up to the high mark

if this does not help I recommend taken the car back to the place you took it to get fixed could be a head gasket problem

The engine coolant warning actually serves the entire cooling system which includes the radiator and the water pump, so get all those checked out. thank u!

Remove the radiator connection on the bottom hose and allow rad to drain and the engine ,then refit hose and refill with coolant nothing could be simplier ,check for bleed connection on the heater hose at back of engine but it may not have one ,if no bleeder then just fill allow to settle then start engine and top up as level drops ,allow to cool overnight then top up again if needed ,job done

Hello first have a drain pan under the front under rad now open drain plug drain coolant ounce drain disconnect rad hoses and transmission cool lines use a strait head screw driver now remove the the bolts you see on top of rad usually 10mm size now lift out rad replace reconnect the bolts and hoses and refill the coolant and start engine let all the air bubbles burp out ounce coolant moves and rad fans come on top up coolant close off by putting rad cap on and check transmission fluid level add if needed you have now replace your radiator.

First drain the radiator. Next leave the rad drain open and remove the heater core hose from the top of the rad by the filler cap. plug the hole in the rad where the heater hose was and use an air gun to inject air into the cooling system via the disconnected heater hose. Be sure to use short spurts so that you so not over pressure the system. This will drain the majority of the engine and the coolant will come out in a hurry. Hope this helps.

1. drain coolant
2. remove engine cover
3. remove the 2 bolts from water hose connection (upper rad hose connecting to)
4. remove o-ring and thermostat
5. repeat in reverse order

i guess you are asking how to install it
here is how it works
first of all dont buy cheap things.im glad you bought this
here are the steps

Disconnect positive battery terminal.

Drain engine coolant.

Remove engine mounts (2) from van frame and flip them over backwards.

Remove the hood latch (leave cable connected)

Remove the two bars that connects the frame to the inside fender.

Remove the engine coolant overflow tank

remove air filter cover and filter and accordian hose

Remove upper and lower rad hoses

remove the two brackets that holds the rad

remove the two bolts that holds the fan assembly to the rad (one each end)

unplug fan plug

unhook lines from bracket at bottom of fan assembly.

remove fan assembly.

remove bolts from ac lines to condenser.

remove bracket that holds ac lines to rad (I think it's the rad)
lift rad upwards and away from frame enough to lift condenser out.

hope it helps-

make sure engine is cool then drain coolant by opening the drain plug at bottom of radiator. remove cap from radiator so coolant will continue to drain and when coolant is down enough to pull off upper radiator hose at intake then close drain, then remove two bolts at coolant housing and remove thermostate. clean gasket material from intake and housing and replace with new gasket and thermostate tighten bolts install hose fill rad with coolant water mix 50/50 and run engine with heat on floor until gets hot and you see coolant flowing in rad, install cap