Before buying in the United States
This dossier retains the cited French-market specifications. Match the full local model number, accessories and warranty before using it to choose a US offer.
Check the dock or charger label for a compatible 120 V/60 Hz supply and the correct plug. A plug adapter does not convert voltage. Photos may show another regional package; the seller’s exact contents take precedence.
The sources below do not yet establish an exact US retail variant. Use this as an international model reference; no foreign listing is presented as a verified local offer.
Why consider this model?
An alternative with automatic water and suction adjustment, plus a mode designed for confined spaces.
This assessment interprets documentation. It does not establish effectiveness on a particular stain, perceived maneuverability or appliance lifespan.
What to know before choosing
- The stated weight is 5.2 kg without accessories.
- Clearance under furniture is not documented.
- Stair!Assist is not a measurement of how easy it is to carry.
Documented specifications
Manufacturer documentation for the French-market model, translated into English. Check the exact US model, dock or charger voltage, plug, package contents and warranty before buying. The European reference is not proof of electrical compatibility.
FCV 4, FCV 3 and SCV 4 Steam Vac are three different models.
Manufacturer figures. Missing information stays unknown; it does not establish that a feature is absent.
| Criterion | Value and conditions |
|---|---|
| Stated weight | 5.2 kg Without accessories, according to Kärcher. Source KARCHER-FCV4-FR |
| Stated maximum runtime | 45 min Manufacturer’s maximum; the table does not specify the exact mode. Source KARCHER-FCV4-FR |
| Clean-water tank | 750 mlSource KARCHER-FCV4-FR |
| Dirty water, upright | 450 mlSource KARCHER-FCV4-FR |
| Charging time | 4 h Stated charging time: 240 minutes. Source KARCHER-FCV4-FR |
| Roller self-cleaning | Yes, statedSource KARCHER-FCV4-FR |
| Dry vacuum mode | Yes, statedSource KARCHER-FCV4-FR |
| Automatic water adjustment | Yes, stated Dynamic!Control mode. Source KARCHER-FCV4-FR |
| Lay-flat body height | Not documented Not established in the selected sources. Source KARCHER-FCV4-FR |
The budget beyond purchase
Real cost depends on the price paid, rollers, filters, detergent and your use. We have neither measured consumption nor a verified annual cost for this model.
Calculate a scenario using your assumptionsPractical answers
Questions about FCV 4
What does Dynamic!Control adjust?
Automatic mode adjusts suction power and water volume to the dirt detected.
Does Stair!Assist mean the appliance is lightweight?
No. The feature changes its behavior in certain positions; the stated weight remains 5.2 kg without accessories.
Does FCV 4 have a larger clean-water tank than FCV 3?
No. FCV 4 is stated at 750 ml, compared with 800 ml on the FCV 3 specification.
Sources and traceability
- FCV 3, reference 1.056-122.0; specifications and modes — French sourceDocumentary check: 2026-10-31 · Reference KARCHER-FCV3-FR
- FCV 4, reference 1.056-131.0; specifications and modes — French sourceDocumentary check: 2026-10-31 · Reference KARCHER-FCV4-FR
A manual may cover several variants. Check the exact reference and supplied accessories before buying. Report information that needs correcting.