Good amusing video. Not a problem with my K.5700. My machine simply stopped working in the middle of a project. Stripping it down - the bolt holding the ‘wobble plate’ had fractured. A £350 machine and a bolt inside breaks - that’s simply a bad component during manufacture - and just out of warranty with no redress back to Karcher. But I agree with you, why do Karcher use a hard plastic for components under stress, apart from built in obsolescence ( and a waste of resources ).

Nice video. Thanks! The main cause of cracks like that is the ice. Most people dont pay attention during winter, and left their Karcher filled with water. That water turns into ice, and since the ice take more space than same amount of liquid water, it ends with exactly same cracks like that in the video. So, people, empty your machine during the freezing days!

Thank you for the video. I had the same symptoms and found out I had the same crack at the exact same place. I first replaced the triangle ring without sucess, only after that I noticed the crack. I just ordered the part. Let's hope I get as successfull as you. Like many, I left my pressure washer during winter in the garden shed without draining it first. Mr. Freeze had no mercy. Lesson learned.

Thanks for the video. I turned on my K4.600 today after 3 years of it being in the garage and guess what ... had exactly the same issue ! Now i know what to do, thanks again.

Thanks - was really helpful in trying to troubleshoot my dad's K4, which he claims was 'meant' to leak and always be on (He's often stubborn about these things!). Little plastic pump head had indeed split and spraying a jet of high pressure water around inside the unit. Seems strange they wouldn't have used a metal piece given the right angle and the high pressure directed straight into it, but the machine has had 6 years of use and Karcher parts are pretty plentiful/compatible so can't be too aggrieved.

I have exactly that same model with that exact same problem. Followed your video, got a new part. Swap it and it works fantastically well. Thanks!!

Parts arrived . Just went with both parts and a seal as I couldn't see where it was leaking from . No leaks now . £50 but saved me putting it in the bin. Cheers for the video and gave me the confidence to tackle it.

Only taken a year to find some help on this after last winters cold snap in Aberdeenshire! Various repair centres said they wouldn't touch it and it was cheaper to buy new..... Someone on fbook mentioned a cheap fix with a 90deg bend part at the inlet and have now found your ace video too! Going to strip down this week and see if it's the same as you found. If successful, I can't thank you enough!!

Useful warning to hopefully stop someone else doing this! I did this repair successfully and left the machine standing without the front cover on. WARNING - the unit it is front heavy!! The whole unit tipped over and the thin grey T shaped spindle (see it in the video sticking out) that is connected to the mains switch unit and fits into the front On/Off switch hit the floor and snapped off. You can't seem to get these as spares so I had to buy a complete mains switch / cable assembly for £38. I considered trying to repair but it is so thin and it snapped just at the point it enters the housing. (An expensive faux pas).Quite a few bad things about the design of this unit - the least of which is the plastic PRESSURE head. (On the other hand if this wasn't plastic then the the metal housing might crack instead which would be much more expensive to replace)

Got the same issue and almost exactly the same hairline crack. Ordered the new part and will see if that's the only problem.. gone up in price a bit now €50 from Karcher direct, nice video, thanks and cheers

Thanks very much had my karther k4 stripped down. Couldn't find anything, watched your post, Found leak. Well done. Brian.

Hopping mad today took my K4 out and exactly the same problem again bought in BQ 2 years ago ot receipt, but of course knew immediately frost had got at it, thank you for a very informative and great video

When you shut down your pressure washer, turn off the water supply, and remove hose pipe, remove vario lance from trigger gun. Run machine for approx 10 seconds to pump out water. This will leave your machine frost protected during winter!!!

Excellent repair and comments from other contributors. I’ll be careful to drain the water from my K4 before freezing nights return. Top man

Cheers for the info . You mentioned the hunting sound . My K4 is doing exactly that . Will investigate

Mines has just started leaking from inside casing as well. Thanks for yer video. You've given me the confidence to strip it down n see where its coming frae. Will let ye know how a get on wae it.

Thank you mate, just picked one up at John Pye Auctions and it has exactly the same issue, I've stripped the front off and it's coming out the side. Just the rest to strip out and order new part. 🙏

Hello, just thought I'd left you know I watched your video on Saturday evening as I have a karcher k4 and it had started surging when in standby. (It had been to karcher and they had said it was due to me using an extension lead....and not enough volts to the pump. To be fair to them they didn't charge me and it was ok for an hour or so) Anyway, I took it apart and I found the big triangular O ring on the junction between the pump and the plastic cylinder head wasn't seated correctly, nipped by the lid. I re-sat it and after reassembly, back to full pressure. Thank you, Laurie

Well done for mending your pressure washer, mines got the same problem it’s just over a year old but only used twice. I resent having to buy the parts for what is obviously a common problem. My last karcher washer had the same problem but I just chucked it out as I left it out one night when we had a slight frost, thinking it was beyond repair. I will buy the part and repair mine but never again will I buy anything from karcher.

Thank you bud, very helpful I have the same issue and just ordered the new part. Hopefully, i don't lose a spring when reassembling.

Very helpful thanks! Mines been leaking a while and I’ve been putting off opening it up and fixing it for a while. Exact same issue and place.

I've just ordered the part as I've got a leak coming from the same place. Bloody frost! Fingers 🤞

Great helpful video. Thank you for taking the time to post this. You have a new subscriber. 👍👍

Thanks very much for the video. I’ve just had exactly the same leaking problem you describe: so I’ll follow you directions and strip it down and hopefully 🤞I can also fix the problem. Thanks for taking the time to make this video. All the best

Cheers for the advice mate, mine has just started leaking and I’ll give it a bash and try and fix it myself

Very helpful and informative video. I have a K4 with the exact same problem and this helped a lot. Time to order the part and give this a try 😬

Super. thank you so much you helped me fix my k4. greetings from Edinburgh.

Hi there thank you my dad's k4 Is leaking so I will have a look I'll strip the yellow boxing off and see where it's exactly coming from

Thanks for a great video. I'm thinking of getting the K4, first ever pressure washer, but read lots of people moan about the water leaks. Your experience has shown me that if that happens then its a not a major problem and can be fixed quite easily by draining the unit before storing over the winter months should prevent this. My only other concern is most people complain about the pressure hose twisting up during use, what's your experience?

Hi, video really good. Not too Technical and straight to the point. Easy to follow. I have similar issue with my K4 Full Control pressure washer, but cannot find the replacement part (control head) Would you be able to advise where I can buy one please?

ive done one of these before and i can see you are struggling by putting pressure onto the top end . you dont need to put any force on it as the bolts are long enough to screw in and all you need to do is make sure the switch box as you screw the pump bolts down goes straight into the side of the motor. also the other places the k4 leaks is the elbow on the backfoot and the high pressure pipe which fastens to the top of the pump but you can buy both these pipes in alloy and they never leak again

Hi thank you for your video , you have given me the inspiration to try and repair my K4 same problem .

That’s great fix going to do the same fix thanks for your video don’t need a new one now

Thx for a great video.

Obviously this is a fault with the k4 same problem for me, Edit: thanks man you gave me the confidence to operate on my marcher, wasn't the same issue in the end but sorted now back to 100%, the water inlet has two screws holding the to the frame, these popped on me, found after 10 mins inspection for hairline cracks 🤣

Watched your video today, what a hoot, loved it. Have got same problem so will give it a go. Thanks for posting it. R U from Dundee?

Exact same problem thank you very much for the help!

It’s not a filter, it’s a safety valve!!!

putting it back together, i think ratchet straps would be the thing to use, thanks for video same problem .

Thanks just mended my sons k4 thanks to your video be lucky

Great video after watching I decided to tackle my K4 and found the same airline crack in the control head, unfortunately the retaining clip was badly coroded trying to remove it the motor act slipped out of my grip and some of the interior parts fell out I managed to locate the parts and work out where they had to go but I was left with one small blue plastic piece could not work out where it fits, any ideas.

Great video buddy. Whats the part number or description and where did you get it from?

I enjoyed that I'll be having a go at mine noo, I especially liked the swearing as it was like watching and listening to masell lol take care mate.

I had the same problem and repaired it with the new part and no leak, but not its making a pulsating noise when I turn it on and has no pressure. Any ideas ??

Well dun young man first time watching well explained

Didn’t work for me K4 chucked it in the skip spending no more money on the krap

Would have been good if you had shown how to turn the plastic nut to get the rear hose part out

Well done, it wait to me too , easy fix I see well for shure will do this.

Hi. This was the problem on my husbands pressure washer - ive replaced the part and no more leak 👍 However, im now having a problem with it maintaining maximum pressure - when operating if the hose is put to maximum pressure it works until the gun trigger is released, sounds like it's sucking air back. When the trigger is pulled again there is no pressure unless you turn the lance down to low output and then back up to maximum ( if that makes sense!). Any ideas why?

Thanks a lot for your help.

Hope this helped. Please subscribe and flick through the rest of my videos. Also feel free to request anything 😊 also trying to get 1000 subscribers so i can do live videos and live drone flights . Thank for your support 👍

Nice, well explained video,Thank you.........

Just hopefully fix my grandsons one I will test it tomorrow I am 71 grandmother so if I can have a go any one can brill 😀

Hi there , just watch your video my friend went use my k4 today no pressure and water leaking from bottom, was it easy to take apart...what size of hex screwdriver is it...

Nice 1 thank u for that! I have the same problem. High pressure and plasic definatly dont like each other. I wonder why they make them like that lol

What is the name of the part we need to order fro Spares2You? I've just went to use my K4 after 7-8 months out of use, last autumn and winter, discovered it has the same issue, what is the part called?

Great Video 👍👍 Many Thanks

I had previously fixed like this buddy. Now the pump constantly runs as soon as you turn it on but no getting pressure from the lance.

Suspect I have just had the same issue with mine, after 18 months so out of warranty. Any thoughts about filling the metal clamp with epoxy to surround and reinforce the plastic part that split?

Thanks very much it’s really helpful 👌👏

great video but you left out the main reason i was watching was to see how to get the cover off ,,why didn't you show this ,,?

Really great video

Well explained

Just this minute bought a AVA pressure washer £130 5year guarantee it looks the bees knees they even put maintaining videos up cheap as chips the bits 120 Bar made in Norway so used to the cold

I have managed to take off the yellow face cover.. I believe I have the same leak. How do I change the rest of it I'm so confused 😕

Hi all, understand every 5'th word! :-(

Hi there, very good video. I have the same problem but i cannot find in the Greek market that spare part. Can you please give me a website where i can order it from.

How the hell did you get the case back on. I’m taking a hammer to it soon 😂

Mine leaked not long after guarantee ended can they leak any where else?

I had to replace the same part as you mentioned in this video yesterday cos it was leaking water in my K4 Full Control washer. It had a tear near the metal cover. What was your technique in getting the yellow cover back on? As it is a puzzle for me getting the power cable and detergent hose etc on without trying to break the plastic clips around it clipping it into the back cover.

Translation would be good !

hi,got a leak changed the o ring (by disambly dit not nottiched a o ring weerd ) keeps leaking need some help, video is on my channel happy new year

Alright buddy... i was wondering if you knew which oils i can put in my K4 motor? had a bit of a leak on mine

I’ve got a leak issue with my k4 but I can’t figure it out. Is there any chance you can get in touch with me and I can send you my issue via email please? I’ve basically got a leak coming from under the metal cap that covers the control head and cylinder head - however both seem to have their structural integrity with no cracks so I’m stumped!

😂😂😂😂

I think mine has the same issue, however I stripped it down and the control head looks ok, as in no obvious cracks, holes, etc... I've taken a short video. What do you think is the issue? Do you think it may be that bearings or seals have gone? kzfaq.info/get/bejne/nZZjlLOXl9u-c6c.html