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Windscreen Washer Fluid Leak

A blue, pink or green puddle near a front wheel that smells like glass cleaner is usually washer fluid leaking from the reservoir, pump seal or a hose.

Normal risk

Not urgent, but working washers matter for clear vision and are often an inspection item.

Short answer · How do I know it is washer fluid?

Washer fluid is thin like water, often coloured blue, and smells of alcohol or glass cleaner. The reservoir is usually behind a front bumper or wheel arch. Leaks often come from the pump seal, a cracked reservoir after frost or a split hose to the jets.

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Safe checks you can do

  1. Smell and feel the fluidThin, watery and smelling of glass cleaner suggests washer fluid.If it is sweet-smelling and slippery, it may be coolant instead.
  2. Fill the reservoir and watchLook for drips around the pump and hoses.
  3. Run the washersWeak spray with a leak points to a split hose.

Questions that narrow it down

  1. Did it freeze in winter?Frost cracks reservoirs filled with water.
  2. Does the level drop without use?Reservoir or pump seal leak.
  3. Is the puddle near the engine?Check it is not coolant.

Possible causes

Listed without ranking. Use the questions above to see which ones fit your car.

  1. Pump seal leakCommon at the reservoir.
  2. Cracked reservoirOften from frost.
  3. Split hoseLeaks when spraying.
  4. Loose hose jointDrips near the jets or pump.

Questions about Windscreen Washer Fluid Leak

Can I use only water?

In winter, water can freeze and crack the reservoir. Use a washer fluid suitable for the temperature.

Is washer fluid harmful?

It contains alcohol and is toxic if swallowed. Keep it away from children and pets.