I have a 1996 318ti - the water no longer sprays up onto the front screen as it should when I want to clean it. I suspected the washer pump (black, sits on top of the washer reservoir) had gone, but replacing it has not solved the problem. I have also replaced the fuses in the fuse box and it still does not work.
If it makes the bzzing sound then washer motor is fine . The pipe line which connects the the hood and tank probably came off. Open your hood and remove the foam cover just below the spray line and connect the line back. Try to tape it because it will come off again.
Does it make a buzzing sound when you pull the lever? If it does than there is clogage somewhere and I would suggest taking the nozzles off and checking for clogage If it does not make a buzzing sound I would suggest you find and electrcian to check the wiring...
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Most likely the pump (motor) is gone and needs replacement. However, it is worth checking that fuse allocated to windscreen washer is intact. Furthermore, you may also need to check the wiring for flow of current at lever end (handle on the steering wheel) and wires connecting to pump on the water reservoir.
I would recommend checking the washer pump unit on the washer reservoir. They have a tendency to clog up with algae or fail. You can also check for voltage to the washer pump while someone is activating it.
Procedure to change the windshield washer tank or pump on an E46.
Tools needed: 10mm spanner (in toolkit), small-medium flat blade screwdriver
Undo the 10mm nut, highlighted in the red circle. This is the only
fastener holding down the washer tank. Lift the tank up about 4",
allowing you to unclip the black plastic heatshield around the washer
pump. This is where you need the screwdriver, to lift the securing tab
from the washer tank (yellow circle). You can actually pull out the
complete washer pump from the tank. Just gently pull up, it is a
Now unclip the washer level sensor plug (green
circle). This clip is a little difficult to figure out. I pulled it
hard and it came off. Taking a closer look at it once it was off, I
couldn't quite see how to unclip it from its securing catch.
At this point you have removed the washer tank. The two tabs at the
bottom of the tank fit into recesses in the body work, in order to
secure the tank. There is a filter screen in the tank, where the washer
pump plugs into the tank (blue circle). Just pry this up with a
screwdriver to remove it. I had bought a new one, just in case. You can
see the fluid level sensor socket on the left side of the tank in this
Now unclip the pump connector from the pump. Pinch the tab at the top of
the connector. This will unclip the connector from the securing tab.
Pull out the water hose from the nozzle on the pump
Replace the pump filter screen into the tank, if necessary. Plug in the
new washer pump into the filter screen. Connect the water hose back onto
Position the washer tank into its approximate location and clip the sensor for the fluid level back into its socket on the tank.
Secure the heatshield back onto the tank.
Now position the washer tank into its secured position and fill with a
little water, in order to test the pump out. Fasten the 10mm screw back
into the plug.
On the Terrano's the washer pump that controls both the rear window and the headlight washers are fed from the same water reservoir found closest to the front of the vehicle. The one closest to the windscreen is for washing that windscreen but the larger one to the front washes both of the area's mentioned in your posting. On that unit there are two seperate pumps, one for the rear and one for the headlights. These have a tendancy to stop working through a variety of reasons. To check out the wiring a "Multimeter" is needed. Put the multimeter onto 12V if there is a setting for that on yours, if not put it onto 24V as most have that setting. Disconnect the wiring harness closest to the water reservoir and try each pin within the connection leading TO the reservoir. Attach one lead of your multimeter to an "Earth/Ground" point on your chassis and use the red lead to test each pin for voltage. If no voltage is found then try all of your fuses found near the drivers right knee area, but if voltage is found then try removing the pumps from the reservoir and purchase new ones that match. Usually a "Generic" model for the pump will be found to fit. I know I was able to find one when this same thing happened to me.
to access the windscreen bottle, you have to take off the front wheel, wheelarch and dicconnect filler tube. Using 10 mm socket take off one bolt holding the bottle. To reinstall take off side indicator to make it easy for you.
for E90 model it is normal to have leak when the bottle is full. the water is coming out from breather on top of bottle. but if the fluid is complately drain, then there's something wrong with it.
I would follow the mechanics recommedations. I think he's taliking about the cam and crankshaft seals. Yes the water pump should be replaced as well. The pump that sprays windshield washer fluid onto the windshield is called the windshield washer pump. The water pump is on the engine and pumps water (coolant/antifreeze) through the engine to the radiator and heater core.
Take off the pipe at the pump then use the washer switch and see if the water sprays out. To check if the pump is working you will need someone to use the switch while you hold your hand on the pump you should feel or hear the pump working. If the pump is going but no water spraying blow back through it and try again. If it dosent work then you will probably need a pump.