Kärcher K4 Full Control Pressure Washer

In this review we’re going to take a look at the Karcher K4 Full Control Pressure Washer,  which is the best selling pressure washer at the time of writing.

However, if you are on a budget or if you want something that you can use to complete small cleaning jobs, we have other reviews of less expensive pressure washers, such as the Kärcher K2 Compact Pressure Washer.

We are reviewing quite a few top pressure washers on this website and they tend to range from about £78 all the way to £400+ depending on the features that you need and the size of the jobs that you want to use it for.

If you are looking for a quality built product that will do most outdoor cleaning jobs, then this is a great choice for you.

In fact, if you landed on this page and you are just looking to Karcher K4 Full Control Pressure Washer  then you can click here and go straight through to Amazon.com where you will be able to see the full product page and you will also be able to see the price as well as what people are saying about this product.

Will the Karcher K4 Full Control Pressure Washer Do What You Want?

We will now take a look at the features that you get with this chair and tell you some of the pros as well as the cons before you order.


Here is an overview of the features of this pressure washer:

  • LED display trigger gun
  • Extendable aluminium handle makes transporting your pressure washer simple
  • The high-pressure hose is stored at the back of the unit, making it easy to set up and store away
  • 3 years manufacturer’s warranty

Review at a Glance:

If you’re just looking for a quick overall look at this product and our verdict, then we will say it is very good. This pressure washer will satisfy people that need something that will quickly clean almost any surface, and also something that is easy to store.

Click here to check out the Karcher K4 Full Control Pressure Washer at Amazon.com

We will now take a closer look at each feature so you can decide whether the Karcher K4 Full Control Pressure Washer is the one for you.

You can also check out our top 10 pressure washers list of 2018 if you want to have a closer look at the available options out there.

 Full Control trigger gun and spray lances

This washer gives you direct feedback as to the pressure setting you are on, ensuring you get the right pressure setting for the surface you are trying to clean.

The pressure can be regulated by twisting the Vario Power spray lance until the desired level is shown. The LED display on the Full Control trigger gun allows you to easily check the pressure setting you are using.

Parking position for easy accessory storage

The Full Control trigger gun and the connected spray lance can be stored whilst still on the pressure washer during cleaning.

The Full Control trigger gun is easily accessible. So after you have finished, the trigger gun and spray lances can be stored on the pressure washer to save space.

Plug and Clean

You get a quick and easy application of detergents through the pressure washer, when it’s in detergent mode. The Plug and Clean detergent can be replaced quickly and easily with one simple movement.

Karcher detergents increase efficiency while cleaning, help prevent dirt from returning and help to protect and care for your surface.

An add-on product people usually buy together with this washer is Kärcher 1 L, Universal Cleaner Plug and Clean, Pressure Washer Detergent.

The Karcher K4 Full Control pressure washer is a great addition to your tools. This product will help you achieve amazing results. You can clean your patio, car, wheelie bin, garden furniture, fencing and many other applications. The full control system can help you find the right pressure setting, ensuring an optimal clean.

Simply choose the correct spray lance, based on the surface you wish to clean, using the surface symbols on the spray lances as guides. Once you have chosen the lance you wish to use, simple twist the vario lance to find the correct pressure setting, guided by the LED display on the trigger gun.

This great system helps you achieve the best possible clean for your home. Your Karcher K4 Full Control pressure washer is perfect for tackling medium sized patios and cars and yet powerful enough to tackle tough dirt. This pressure washer comes with a dirt blaster spray lance and a vario power spray lance.

Customer Feedback of the Karcher K4 Full Control Pressure Washer:

We now want to take a look at the customer feedback of the Karcher K4 Full Control pressure washer. This will help you get a detailed picture from people who eventually purchased this pressure washer. Plus what they are saying about it.

You will be able to see both good and bad that people are saying.

Here is an overview of the pros and cons of this pressure washer based on the customer opinion.

Overall Rating:

This chair has an overall rating of 4.5 out of 5 stars so it is definitely very popular with this great score.

For the price you cannot go wrong however. If you’re looking for something that will give you a fantastic wash for the garden and car then it is well worth a try!

We will also tell you about the overall pros and cons below and get a better picture!


  • You can control the water pressure needed for different jobs around the garden
  • Dirt blaster especially effective on stone and bricks
  • Very powerful and controllable
  • The washer has a built in detergent bottle cartridge slot on the top
  • You can buy an attachment for use with any water supply, such as a barrel or pond


  • If you just want to clean paintwork then make sure you use the correct lance. This gives an option for lower power otherwise it may take loose paint off
  • Could do with a longer hose. Say 10m as standard would be sufficient to get around your car without the need to move the washer
  • Some problems with leaking hoses.

Our Verdict

This is the best selling pressure washer and with all the great features and ease of use for big cleaning jobs. We recommend that you go ahead and buy yours now.

It gets 4.5 stars which means it is in the top league of pressure washers, according to its users.

So if you want to check on these reviews and see more on the Karcher K4 Full Control Pressure Washer, then click here or select the link below to go direct to Amazon.co.uk;