Washer and Expansion bottles

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Washer and Expansion bottles

Postby aikmanmosquito » Mon Jan 29, 2018 3:44 pm


Can anyone shed some light as to what's the best method for cleaning up expansion and washer bottles to as close to new! I've seen some absolutely spotless ones on 'concours' cars and wish mine to look that good.


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Re: Washer and Expansion bottles

Postby Noel » Mon Jan 29, 2018 3:58 pm


See above. Toothpaste and a stiff brush.
For the inside a long soak with bleach and a handful of gravel and a good shake.

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Re: Washer and Expansion bottles

Postby Paul G » Mon Jan 29, 2018 6:15 pm

To get at the inside top of them I heated the handle of an old toothbrush with a cigarette lighter and when the plastic is hot enough you can bend them to various shapes to get in all the nooks and crannies that an ordinary brush can't get to. Did my washer and expansion bottles a treat.

I used Cif liquid sink cleaner which worked well.

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Re: Washer and Expansion bottles

Postby Jasonmarie » Mon Jan 29, 2018 7:02 pm

The thootpaste really brings it up to that white look . Also soke the bottle in some bleach as this works out all the dirt .
I did make a mess so make sure the wife is out . Also I used the autoglym screen wash with spring water . Might think that’s mad but it should last 2 years before I need to change the water . :beer:
Ford Capri 2.0 Laser 1987 Mercury Grey ....... :beer:

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Re: Washer and Expansion bottles

Postby Stish704 » Tue Jan 30, 2018 6:59 am

Didn’t think of using bottled water before? Perrier a bit too much? :xd:
Nope, I suppose it would stop any limescale build up in the washer bottle.

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Re: Washer and Expansion bottles

Postby pbar » Mon Feb 05, 2018 10:08 am

I just used normal washing up liquid and warm water with mine, bendy toothbrush to get at all the insides. Took a couple of hours in the kitchen sink.

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Re: Washer and Expansion bottles

Postby timfromull » Mon Feb 12, 2018 7:05 pm

Ive used baking powder / bicarbonate of soda to good effect.
I chuck everything in the dishwasher.......including engine parts ....