The general build quality does not feel particularly good, with both the K2 and the K3. There are many plastic parts, and the devices feel correspondingly cheap. We have tested both models and will show you the most important differences. Kärcher K3 Power Control vs K4 Power Control comparison table Model In this post we compare the Kärcher K3 Power Control with the K4 Power Control (the K3 Compact is no longer manufactured). Along with the Power Control models, there is also the Premium Power Control version. The only difference is the hose reel, otherwise they are identical, so we won’t go into more detail here. As you might expect, the K3 is just as effective at cleaning cars, as it is bikes, though again we found that it was possible to go up a couple of notches on the Power Control screen for a bit more cleaning power. You just need to make sure you don’t get too close to the object you’re spraying, or spend too long on one area.

Although the K4 has some plastic parts, it seems to be of higher quality and is a bit more stable than the K3. The parts do not wobble or vibrate as much and the pressure hose is much more flexible.

Its secret weapon is its Power Control Gun and matching Vario Power spray lance. You can switch between three different pressure settings and adjust the spray pattern with a twist of the nozzle; you can switch from a high-powered jet to a softer, flatter spray in a jiffy. Whether you’re washing mud off the car or trying to blast mould and algae from your patio, you get what you need without having to lug around a bunch of different tools. If your bike is particularly dirty and has been stationary for some time, you might find the dirt a bit too stubborn for the lower pressure. Provided you’re careful about where you aim the lance, we found the higher (medium) setting was preferable for getting rid of mud that wouldn’t shift on the lowest setting. The best Kärcher pressure washers you can buy in 2023 1. Kärcher K2 Compact: Best Kärcher pressure washer on a budget There is enough space to store the gun, lances, power cable and pressure hose, the design is well thought out in this respect. Always have Kärcher on hand with the Kärcher app, it contains everything you need from setting up your machine to step by step application guides. Tailor the app to your machine and accessories for the perfect cleaning result.

There’s also a useful step-by-step guide to show you how to clean whatever it is — the bike-specific guide was admittedly quite handy, but it’s unlikely you’ll use the app again once you’ve got the hang of the settings.The K3 Power Control delivers a bit more water pressure than the K2 Power Control. According to the manufacturer, the K3 can clean more surface area in one hour than the K2. In practice, however, we could hardly notice any difference. The K2 cleans just as thoroughly as the K3. Comfort Key specs – Size: 40.2 x 30.6 x 58.8cm (LWH); Weight: 11.5kg; Max pressure: 130 bar; Water flow rate: Max 420l/hr; High-pressure gun: G-160-Q Power Control; Lances: Vario Power, Dirt Blaster; Hose length: 8m; Cable length: 5m; Cleaning area: 30m² per hour; Motor power: 1,800W