Karcher K4 Full Control Review

A review of the Kärcher K4 Full Control Pressure Washer


David England says:

Spot on…nice practical demo….your patio same state as mine too!!

Riki Whytock says:

hi do I need to buy a connector to go on my hose pipe

Rea Black says:

thank you for sharing!

Krystekk says:

Great review and explained really well. This helped me a lot as i was too lazy to read the instructions. haha

Elvis Pourier says:

leaking water

Revers76 says:

No blabla !!! Only very usefull test and explanation.
Congratulations for this good review.

Kim Crest RA says:

thanks for the review!

Leeallicat says:

Very useful video, i have just bought one and on setting up i found the screws for the handle are ineffective and just pull straight out of the extendable rods does any one have any idea how to solve this problem? Thanks

Neil Mcintosh says:

A little tip – when using the garden hose be sure to fully unwind (even though you may not need the length) because it allows full water pressure which means better cleaning results!

frantic storm7 says:

Is this one any good at removing ‘Blackspot’?

Riki Whytock says:

Can’t seem to load the cleaning fluid do I just take lid off and push in

hmd matar says:

hot water???? what is the temperature?

миха хисамутдинов says:

ебата сломался через месяц

Christopher Ellis says:

As a professional car valet I can assure you that the hardest setting is completely safe to use anywhere on a car as long as you hold the lance at least a foot away from the car, it is much more effective as the car setting is much too soft.

Julia Graf says:

Great review!

teabag3339 says:

Excellent demonstration – thanks. That said the dirt buster lance is poorly manufactured and Karcher know this. Mine from new lasted approximately 10 hours before it became faulty. I therefore looked on Amazon for a replacement and found that the price range for a new lance was £27 to £30. Rather annoyed to find the price was unacceptably excessive I by chance checked Karcher on-line and low and behold the price of the lance from them was £8 each. This is a situation where one finds that the parasitic middle man is trying to profiteer at the expense of naive Karcher customers. Of course I posted this on Amazon, but Amazon rejected the publishing what clearly is theft run by greedy freeloaders.

Sat Singh says:

A really good review. Thank you

Shinama Records says:

Great video,
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ZANDER says:

thank u

david birch says:

how do you replace the battery’s for the LED in the trigger gun ? instructions supplied by Karcher are dismal

azhar hayat says:

good job mate

Mcpricex says:

The only way a domestic pressure washer will do any kind of damage to vehicle paintwork is if there is already some damage there to begin with such as rust, flaking paint or down to the metal scratches. The K4 puts out 130bar/420 litres per hour, which is perfectly safe even at full power with a normal lance, obviously you wouldn’t use a dirt buster type lance on a car. You’d do far worse damage using one of the brush type attachments.

Xavier Martin says:

Nice demo. But how did you plug the cleaner bottle ? not see on the video

Jeremy Funnell says:

Great, detailed review. Thanks.

Caroline Cee says:

Is there a knack to pressing that yellow button to release the hose from the gun because I cannot remove it for the life of me. The yellow button hardly moves ☹️

zodiacfml says:

The noise makes reminds me of my old, unknown brand of pressure washer. Watching videos of the K2 in operation has a smoother and less noise. I’m trying to decide if the pressure of the K2 is enough for me.

aah57 says:


Is your unit still working? I have read a number of negative reviews about reliability issues of Karcher’s products. Just wondering if they were biased…

Jamie Gilman says:

Nah dude good demo. I was looking at buying one. But I miss my old partner in valeting the compact karcher B302 and trying to find a company which fixes them is a nightmare when you live in the middle of the Irish sea..

amaz one says:

Excellent. Exactly as described. Good quality. They work great and are very handy. Absorbent. Easy to rinse and clean afterwards. They do a great job https://goo.gl/ZktSSp

Mohammed Alamoudi says:

can i pls have a pic of the

vernoncasuals says:

But when and how are the detergent bottles used?  Does one application use the whole bottle?

paul kissick says:

do you have to use the detergent bottles? Or with the machine operate without them?

Dunnanga Mupazzy says:

Very Good dermo well explained

Emile Brechoire says:

juste pour info il s’utilise couché et non pas debout.

andrew hutchinson says:

not a good product used karcher machines for over 20 years and this one has by far been the worst,the hose is a nightmare to coil up and put away the soap no longer comes out of the machine bit bad for only being over a month old..contacted karcher to be told they can fix it but will take anywhere up to 5 weeks…a machine used maybe 8 times in a little over a month needing to be fixed no thanks..Tip to karcher in future do not try and fix what is not broken the old style soap system was brilliant and you did not use much compared to 2 bottles that i have used in a little over a month….can,t wait until it,s totally knackered probably in about a months time so then i can go out and get something better..

maciczka says:

good job mate!

Julie Cutting says:

Very useful bought one took me 6 hours today to clean patio etc .using wrong Lance lol, thanks to you won’t make thst mistake again. When I start mine up I turn the on switch then the water flow tap is this right or dosnt it matter as I saw you put water tap on first

Emrah ARGIN says:

hi from Turkey. thanks for video.

Fergie x says:

Do you have to actually plug it in to a plug? Or does it work off of batteries or something?

Extra Hulp says:

excellent to see not reclame but real practic work.

Paul Jenner says:

well done mate ! You should work for Karcher .

Keith Walker says:

I have one but I can’t figure the correct way to plug the bottle in. The cap is too hard to be penetrated by the plastic nozzle that sticks up.

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