Mercedes W123 Windshield Washer Fluid Bottle And Or Pump Replacement Repair Guide

Difficulty

Easy

Steps

4

Time Required

                          10 minutes            

Sections

1

• Windshield Washer Fluid Bottle and/or Pump
• 4 steps

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Introduction

What you need

Step 1

              Windshield Washer Fluid Bottle and/or Pump               

• The windshield washer bottle is not attached to the car with any screws, nuts, or bolts. It simply sits in a bracket that holds it in place.
• To remove your washer bottle pull it up and out of this bracket.

The windshield washer bottle is not attached to the car with any screws, nuts, or bolts. It simply sits in a bracket that holds it in place.

To remove your washer bottle pull it up and out of this bracket.

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Step 2

• If you are performing this job because your washer bottle is leaking now is the time to inspect the bottle for cracks.
• If no cracks are found then inspect the spot where the pump enters that bottle.
• The pump is not held in by any fasteners, instead it is a friction fit in a whole at the bottom of the bottle. There is a rubber grommet that seals this whole and seals the pump to the bottle. This grommet may be the source of your leak.
• Whether you need a new bottle due to cracks, a new grommet due to leaks from the seal, or a new pump because the one on your car has failed, you will now need to remove the pump from the bottle. To do this pull the pump up, and then outwards away from the bottle.

If you are performing this job because your washer bottle is leaking now is the time to inspect the bottle for cracks.

If no cracks are found then inspect the spot where the pump enters that bottle.

The pump is not held in by any fasteners, instead it is a friction fit in a whole at the bottom of the bottle. There is a rubber grommet that seals this whole and seals the pump to the bottle. This grommet may be the source of your leak.

Whether you need a new bottle due to cracks, a new grommet due to leaks from the seal, or a new pump because the one on your car has failed, you will now need to remove the pump from the bottle. To do this pull the pump up, and then outwards away from the bottle.

Step 3

• To replace the pump, start by unplugging the electric connection at the top.
• Then disconnect the plastic hose from the bottom.
• Replace with new pump, reconnecting the electric connection and plastic hose.

To replace the pump, start by unplugging the electric connection at the top.

Then disconnect the plastic hose from the bottom.

Replace with new pump, reconnecting the electric connection and plastic hose.

Step 4

• To finish, re-install the pump (old, if working, or new) in to your washer bottle (old, if good, or new, and possibly with new rubber grommet).
• Then simply re-insert the bottle in to the retaining bracket.
• On this car the pump worked fine, and the washer bottle and grommet were both OK. The bottle was simply very dirty and filled with really old, gross washer fluid. The bottle was simply removed, emptied, and cleaned and then refilled with a mix of water, isopropyl alcohol for freeze-prevention, and a few drops of dish soap.

To finish, re-install the pump (old, if working, or new) in to your washer bottle (old, if good, or new, and possibly with new rubber grommet).

Then simply re-insert the bottle in to the retaining bracket.

On this car the pump worked fine, and the washer bottle and grommet were both OK. The bottle was simply very dirty and filled with really old, gross washer fluid. The bottle was simply removed, emptied, and cleaned and then refilled with a mix of water, isopropyl alcohol for freeze-prevention, and a few drops of dish soap.

To reassemble your device, follow these instructions in reverse order.

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                    Nicolas Siemsen                     

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fezcabdriver - Nov 30, 2018

Reply

Any tips on installing the grommet? Should I put grommet on pump first then jam it in? Or should I put the grommet in the tank, then push the pump into it?