Karcher K4 Full Control Home Pressure Washer Review

Buying a pressure washer is a great investment for those who live in a part of Australia that receives adverse weather that comes with dirt. 

If you are looking for a pressure washer to clean your car driveway and more, then you should continue reading this article. 

In this article, we have reviewed Karcher K4 Full Control Home Pressure Washer. This is a powerful high-pressure cleaning machine that gives you an easy time as you clean your home. 


Karcher is a popular pressure washer brand that offers high quality products at reasonable prices. The Karcher K4 Full Control has been designed to give cars and homeowners complete confidence in cleaning. The pressure of the unit can be adjusted according to the status and texture of the surface you are cleaning. 

Moreover, if you want to check the level of pressure selected then you can check it through the LED display. 

This pressure washer is an ideal pick for a car or bike. It comes with different attachments. It includes a patio cleaner fitment ideal for driveways and slabs as well as cleaning vertical surfaces like garage doors. 

The high flow rate combined with increased pressure offers the target with a deep clean. The high level of controls of the unit means that you can perform the best cleaning without cutting into the surface. 


  • High pressure gun with standard quick connect
  • Dirt blaster spray lance
  • 6m high pressure hose
  • Vario power spray lance
  • Power rating (kw) 1.8 
  • Flow rate (L/h) max 420
  • Pressure ( bar/MPa ) 20 – up to 130 / 2 – up to 13
  • Telescopic handle 
  • Water Cooled motor
  • Integrated water filter


The design of the unit is pretty amazing. It has a telescopic handle. You can select the perfect pulling height to move to conveniently from one place to another with ease. 

In order to ensure everything in one place. The manufacturer has proved on-board storage for the lances and cable. 

In order to ensure the stability of the machine. It comes with a low centre of gravity, hose guide and larger base which combined offers a better stability. 


The Karcher K4 is equipped with a 1800 watt motor that draws 7..5 amps and generates up to 130 bars of pressure at the ends of the nozzle. 

It is a perfect pick for deep cleaning the garden tools and wheels hubs. Moreover, if required you can spread the jet out to clean larger areas at a time. 


One of the great features of the Karcher K4 is the included vario lance. This specially designed pressure washer lance allows you to adjust the power output on the fly between 20 – 130 bars. 

This special lance allows you to do cleaning activity more effectively by changing the pressure as per your cleaning requirement. 

 Like the other models of Karcher K, the K4 comes with the option of being fed either from a standard ¾ inch hose connection or via a gravity fed system. 

The Karcher K4 is an ideal pick for performing cleaning activities around the garden and home. 

It is e quipped with a 1.8Kw motor that provides power to this machine. It has the 420 lites per hour maximum throughput and 30 meter per hour coverage. 

The motor installed in this machine is a specially designed water cooled motor that enables this machine to run for a longer duration as compared to normal motors of pressure washers. 

LED display

Another great feature of this pressure washer is the LEd on the trigger that guides the user to select the correct pressure settings. The symbols on the screen make the setting adjustment highly convenient. 

The LED display of the unit uses two AAA batteries that come along the unit. It ensures that you can put the machine to work from day one. 

It features an integrated handle to clean vertical surfaces such as garage doors. 

Final Words

Overall, Karcher K4 is a great all-rounder. It is an ideal pick for regular use as well as for cleaning your car every week.  The on-board storage of the unit allows you to keep everything in your reaches such as lances and cable. The cooled motor of the unit ensures the high-end performance of the unit. It is designed to offer you years of use.