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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There is a electric motor that pumps washer fluid . Located in the bottom of the washer fluid tank .
Wash Operation (Front and Rear Wipers)
The front and rear washer systems use the same windshield washer fluid pump. When either the front or rear wiper is in the washer position voltage will be supplied to one side of the windshield washer fluid pump (depending on whether it is front or rear), while the other side of the pump is grounded.
At this point, the windshield washer fluid pump sprays solvent onto the windshield. When the front or rear washer is activated, the BCM receives an input from the switch that is activated. The BCM will control the wipers while in the WASH mode. The BCM will control either the front wiper relay or the rear wiper relay to turn on the wipers. The windshield wipers operate at low speed for 3 swipes and returns to the park position.
When turning on the washers do you hear the motor run ? Have some one try it while you listen at the washer fluid tank ! These pump motors do go bad .
turn OFF the ignition.
Disconnect the harness electrical connector of the windshield washer fluid pump.
Connect a test lamp from the windshield washer pump control circuit to a good ground .
Turn ON the ignition, with the engine OFF.
Press the front washer switch.
Does the test lamp illuminate?
YES or NO !
Jerry. You said youcleaned the hoses? Did you also clean the sprayer ports? They maybe clogged. When i had this problem I used my air compressor and blew air through the hose and ports. This solved the problem. Lastly did you check to see if the tube running from the washer tank is not clogged?
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.
I'm assuming you can hear the pump motor run, the resevior has washer fluid in it, but there's no spray... correct? Then the problem is most likely a clogged pump inlet screen. You will need to access this pump/resevior from the right hand side wheel well (liner moved out of the way) and disconnect the wiring connector at the pump & the rubber hose at the pump housing. This particular pump is 'snapped' in place with plastic holders as part of the resevior housing and a rubber grommet where the inlet tube of the pump is inside the housing. Once you remove the pump, the inlet screen can be removed & cleaned. You'll also want to flush out the reseviore to clean it. Refill with fresh water & W.W. solvent after you reinstall the pump after cleaning the screen. Reconnect the hose and wiring connector to the pump. before refilling.
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.