Window Switch W447 for Mercedes-Benz

OE spec power window switch, engineered for Mercedes Benz Vito and V Class W447. Restores factory window and mirror control after worn buttons, broken contacts or liquid damage. Sold per piece, select position, driver master, passenger front, rear left, rear right, and match the connector layout.

What this is / isn’t:
Included: 1× electric window switch module, position specific, with connector sockets.

Important: Match by VIN and options. Driver master switches differ from passenger and rear units. Trims with power fold or memory mirrors may use a different part and icon set. Illumination and child lock buttons vary by year and package. Always confirm by OE number.

Key Features:

• Exact fitment: Factory mounting tabs and plug interface for a no mod install.

• Reliable contacts: OE grade tactile domes and tracks for consistent switching.

• Correct logic and lighting: Works with the door control module, backlit where applicable.

• Durable housing: Impact resistant plastics that handle daily use.

• Clean look: Factory correct icons and finish to match the interior trim.

Compatibility:

• Vito W447, V Class W447, approx. 2014 onward, all body styles. Verify by VIN.
  Drivetrain and engine do not affect the switch, equipment level and year do.

Options, positions and functions:

• Driver side master → controls all windows, mirror adjust, mirror fold where equipped, window lock.

• Front passenger side → single window control, some trims include mirror adjust if configured.

• Rear left or right → single window control with illumination where fitted.

• With or without mirror fold → choose the version that matches your mirrors and door module.

Typical OE reference families, guide only:
A447 905 … , A447 545 … , variations by side, year, illumination and mirror functions.
Always order by the exact OE part number on your vehicle or confirm via VIN.

When to replace the switch:

• Window works from another door but not from the local switch.

• Sticky, sunken or cracked buttons, intermittent response.

• Backlight inoperative on the switch though fuses are fine.

• Visible corrosion after water ingress or spilled drinks.

Installation notes, pro tips:

• Disconnect the battery if required by service info, remove the trim carefully to avoid broken tabs.

• Release the locking tang on the connector, do not pull on the wiring.

• Test all windows, mirror adjust and fold before refitting the door card.

• If a window still does not respond, check the door module, regulator and fuses.

What’s included, not included:
✅ 1× Window switch module, specify side and function set
❌ Door trim panel, wiring loom, separate mirror switch if applicable, clips, fasteners or fuses

Q&A
Q1: Will a driver master switch fit the passenger side?
No, driver, passenger and rear switches use different layouts and electronics. Order by side and function.
Q2: Do I need coding after replacement?
Most W447 switches are plug and play. Some trims may require a basic adaptation through the door module.
Q3: My new switch does not fold the mirrors, why?
You may need the version with fold function, or your vehicle is not equipped with power fold mirrors. Match by OE number.
Q4: Will this fit older Vito W639 models?
No, W639 uses different switches and connectors. Match by VIN to confirm for W447 only.

Why choose TOParts:
OE grade electrical parts for Mercedes Benz vans with precise fitment, correct pinout and long term reliability, trusted by fleet operators and independent Mercedes specialists across South Africa.