Quick answer: Wiper Blade Replacement on a 1996–2024 Mercedes-Benz Vito is rated Easy and takes about 10-20 minutes. You'll need 1 tool for this job, and parts cost about $66. This guide walks you through the full job step by step, including the mistakes to avoid.
| Part Name |
Part Number |
Price |
Buy |
| Driver wiper blade, 26" |
Bosch 26A |
$32.99 |
|
| Passenger wiper blade, 22" |
Bosch 22B |
$32.99 |
|
About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.
💡 Pro tip: Order all parts at once to save on shipping
Step-by-Step Instructions
Follow these steps carefully
1
Get the right blades: 26"/28" (W639) or 28"/18" (W447)
Vito wiper sizes vary by generation, so identify yours first. Check which side your long blade is on). Rear blades are 16 inches on most W639/W447 vans (two on barn-door models). Measure the old blades or check the owner's manual.
🔧 Mechanic's note — Tom Becker
I never trust a catalog blindly on the W639 — the long blade sits on the passenger side on left-hand-drive vans, which surprises people. Check which side your long blade is on before ordering.
2
Protect the glass
Lift one arm at a time with a folded towel on the glass beneath — strongly sprung arms snapping back can crack the windshield. Work one side at a time so the other blade stays on as your orientation reference.
3
Remove the old blade
On W639 pinch-tab arms, squeeze the connector tabs and slide the blade off; on the W447, press the Mercedes clip's tab and slide it free. Note the old connector's exact orientation first. Pull straight along the arm — never twist sideways, which bends the arm.
4
Install and lock the new blade
Fit any adapter the new blade requires, slide it onto the arm until the latch clicks, and tug gently to confirm it is locked. Check that each blade lies flat with the rubber edge facing the glass.
5
Test with washer fluid
Lower the arms carefully onto the windshield, check the washer fluid, and run a full wash-and-wipe cycle — the sweep should be smooth and streak-free. A missed band at the edge usually means a connector that isn't fully clicked home; reseat it and retest.
🔧 Mechanic's note — Ray Delgado
Here's what I do: on a windshield this big, the edges tell the truth. A missed band at the edge is almost always a connector that didn't click fully — pop it off and reseat it before blaming the blade.
All Done!
Test your repair before closing everything up. If something doesn't work right, double-check your steps.
⚠️ Common Mistakes to Avoid
- • Guessing blade lengths or connector type
- • Letting the bare arm strike the windshield
- • Installing the blade backward or leaving the locking tab open
- • Testing dry on dusty glass
- • Replacing blades when the arm spring or linkage is the actual fault
