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Karcher Pressure Washer - K 4 WCM Flex eco!Booster

Karcher Pressure Washer - K 4 WCM Flex eco!Booster

The K 4 WCM pressure washer features a powerful water-cooled motor for extended lifetime and relia...

Best current price£179.00from Amazon

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ClassicPower ControlPower Control Car & HomePower Control FlexPower Control Flex Car & HomePower Control Flex HomePower Control HomePremium Power ControlWCM Flex eco!BoosterWCM Flex eco!Booster Car & Home

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AmazonKärcher K 4 WCM Flex eco!Booster High-Pressure Washer, max. 130 bar
Free delivery in 1–3 days
£179.00
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Viking UKKärcher K4 Wcm Flex Eco!Booster High Pressure Washer Yellow
Free delivery in 1–3 days
£227.99
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B&QB&Q - K4 Wcm Flex Eco!booster Pressure Washer Corded 130Bar 1.4Kw
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£229.00
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Tooled UpKarcher K 4 WCM Flex Eco!Booster Pressure Washer 130 Bar
£6.95 delivery
£238.95
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eBayKärcher K4 WCM Flex Eco Booster Pressure Washer 130 Bar Patio Driveway Car NEW26
Free delivery in 1–3 days
£249.99
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Product Information

Full details

The Karcher K 4 WCM Flex eco!Booster is a powerful pressure washer designed for homeowners needing to tackle moderate dirt around their property. Its key benefit lies in the eco!Booster lance, which provides enhanced cleaning power while optimizing water and energy use. A potential caveat is that it's best suited for occasional domestic tasks, not heavy-duty industrial cleaning. This model features a water-cooled motor for durability, multiple lances for different cleaning needs, an 8m PremiumFlex hose for good reach, and onboard accessory storage.

All features

Model Part NumberK 4 WCM Flex eco!Booster
BrandKärcher
OptionsWCM Flex eco!Booster

Extended Product Information

FAQs

What is the main advantage of the eco!Booster lance?

The eco!Booster lance provides 50 percent increased cleaning performance compared to standard Kärcher flat jets, while simultaneously improving water and energy efficiency, making cleaning more effective and sustainable.

What types of surfaces is this pressure washer suitable for?

It is designed for occasional domestic cleaning tasks on moderate dirt. This includes paths, patios, garden furniture, vehicles, and garden walls or fences.

How long is the high-pressure hose?

The pressure washer comes with an 8-meter PremiumFlex high-pressure hose, offering good reach and maneuverability for medium-sized outdoor areas.

Does it come with detergent?

The unit includes a detergent suction hose for applying cleaning agents. Detergent itself is not typically included and must be purchased separately.

How do I maintain the water filter?

The integrated water filter should be checked and cleaned regularly. Detach the hose, unscrew the filter, rinse it under running water, and then reinsert it to ensure optimal pump protection.

What is the area performance of this pressure washer?

The Karcher K 4 WCM Flex eco!Booster has an area performance of 30m² per hour.

Can I use any brand of detergent?

It is recommended to use only Karcher-approved detergents. Using other brands may not provide optimal cleaning results and could potentially damage the machine.

Troubleshooting

Pressure washer does not start

Check that the power cable is securely plugged in. Ensure the water supply is turned on and connected correctly. Verify that the trigger gun is properly engaged.

Low or no pressure

Check the water supply connection and ensure the tap is fully open. Clean the water filter and check for blockages in the hose or lance. Ensure the correct lance is selected and properly attached.

Water leaks from the machine

Inspect all hose connections and accessory fittings for tightness. Check the O-rings for damage. If leaks persist, contact customer support.

Detergent is not being drawn

Ensure the detergent suction hose is correctly positioned in the detergent container. Check that the filter on the end of the suction hose is not blocked. Use only Karcher detergents.

Motor stops during operation

The machine may have overheated. Allow it to cool down for a few minutes before restarting. Ensure there are no blockages in the hose or lance that could cause the motor to work excessively hard.

Pros and Cons

Pros

  • Efficient cleaning with up to 130 bar pressure and 420 l/h flow rate.
  • Water-saving and energy-efficient operation with the eco!Booster lance.
  • Durable due to the water-cooled motor.
  • Versatile with interchangeable lances for different cleaning tasks.
  • Good maneuverability with the 8m hose and Quick Connect system.
  • User-friendly with integrated storage and easy detergent application.

Cons

  • Primarily designed for occasional domestic cleaning; may not be suitable for heavy-duty or commercial use.
  • The 5m power cable might limit reach in very large areas without an extension cord.
  • Requires a water source connection for operation.
  • Maintenance, such as cleaning filters, is necessary for optimal performance.

Setup, Compatibility & Care

Setup:

  1. Connect a garden hose (not included) with the appropriate fitting to the water inlet on the machine.
  2. Ensure the water supply is turned on.
  3. Attach the high-pressure hose to the Quick Connect outlet on the machine and the trigger gun.
  4. Select the appropriate lance and attach it to the trigger gun via the Quick Connect system.
  5. Plug the power cable into a suitable electrical outlet.

Compatibility:

  • Requires a standard garden hose with a 3/4 inch thread connection.
  • Compatible with Karcher pressure washer accessories designed for the K 4 series.
  • Use only Karcher-approved detergents for optimal performance and to avoid damage.

Care:

  • After Use: Run the machine with water only for a short period to flush out any residual detergent.
  • Storage: Store the pressure washer in a dry, frost-free place. Ensure all accessories are cleaned and stored on the onboard holder.
  • Filter: Regularly check and clean the integrated water filter located at the water inlet to prevent blockages and protect the pump. To clean, detach the hose, unscrew the filter, rinse under running water, and reinsert.

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Price History

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