Kärcher K 3 Power Control high pressure washer: Intelligent app support – for effective cleaning of everyday dirt
Kärcher high-pressure washers: performance classes in comparison
 K 3 Power Control |  K 7 Smart Control |  K 5 Power Control |  K 4 Power Control |  K 2 Power Control | |
| Pressure | max. 20 – 120 bar | max. 20 – 180 bar | max. 20 – 145 bar | max. 20 – 130 bar | max. 20 – 110 bar |
| Surface performance | 25m²/h | 60 m²/h | 40 m²/h | 30 m²/h | 20 m²/h |
| Flow rate | max. 380 l/h | max. 550 l/h | max. 500 l/h | max. 420 l/h | max. 360 l/h |
| Max. Inlet temperature | max. 40 °C | max. 60 °C | max. 40 °C | max. 40 °C | max. 40 °C |
| Weight without accessories | 4,4 kg | 17,6 kg | 13 kg | 11,5 kg | 4 kg |
| Dimensions (L x W x H) | 297 x 280 x 677 mm | 458 x 330 x 666 mm | 402 x 306 x 588 mm | 402 x 306 x 588 mm | 246 x 280 x 586 mm |
| High-pressure hose length | 7 m | 10 m | 10 m | 8 m | 5 m |
| Water suction | ✔ | ✔ | ✔ | ✔ | ✔ |
| Connection capacity | 1,6 kW | 2,8 kW | 2,1 kW | 1,8 kW | 1,4 kW |
| Weight: | 4.4 kg |
| Dimensions: | 29.7 x 28 x 67.7 cm; 4.4 Kilograms |
| Model: | 1.676-102.0 |
| Colour: | Yellow |
| Manufacture: | Kärcher |
| Colour: | Yellow |
I searched the net and youtube an eventually purchased the Kartcher 3 .I previously had a Nilfisk 125.3 120bar for around 15 years .It done me proud .So to purchase the same quality Nilfisk they where 70 more . That is the reason i have the K3 .Used it the next day and found ‘ as videos said’ a swirl wand on it for doing driveways and paths .I must say it worked a treat . So as long as it last as the Nilfisk did im a happy man.
CROOKY south wales UK
I bought a jet washer some years ago to clean our patio and it was pretty useless and the motor packed in after about a year. Just assembled the Karcher K3 (easy) and tried it out. Very impressed with the circular action nozzle which goes through the grime really quickly. The other surprise is that it is relatively quite and when you let go of the trigger the motor stops completely (not the idling you get with other washers). Add to that the 5 year warranty and you’ve got a happy customer. Made in Germany so hopefully reliability won’t be a problem.
I bought this to replace a Karcher K2 that had seen the ghost after eleven years. The K3 is just as good, if not better for occasional use. I washed the car and the power control (adjustable lancet) was quite useful. It blasted off the stubborn dirt with ease and the gentle spray was useful around the doors. Looking forward to (not really) using it to freshen up the fence, patio and driveway. Very happy with the price and purchase.
Having never owned a pressure washer, I decided to buy a Karcher before any other brand based solely on name & reputation. I was surprised at how cheap it all felt, lots of plastic, quite flimsy handle etc… but it performed miracles on patio paving slabs giving those a new lease of life. I’ve yet to use the (seperately bought) brush head for car washing but can imagine it will work tremendously. A tiny bit of clip into place assembly on the wheels and handle and you’re away.
Early days but seems better quality and quieter than the K2 which it replaced (after it broke – partly as it was dropped).
Its a good product but the control on the main lance which allows for variable soft to hard is difficult to control and can jump from soft to hard quiet rapidly (as a result I might go back to the lance from the K2 which had 3 fixed settings).