Are you trying to replace the wiper blades on your Mercedes W221? Well, look no further. Our review will give you the proper wiper blade size and recommended brand to fit your S550, S600, S63 AMG, or S65 AMG. Please note that this is only accurate for Mercedes-Benz W221 models from 2006-2013.
The original wiper blades on W221 S-Class models are 27” for both the driver’s and passenger’s side. Some people opt for varying wiper sizes, such as 28” and 26”, but continue reading and we will tell you why NOT to do that!
Bosch AeroTwin 27″ Wiper Blade Set
Bosch OEM W221 Wiper Blades
The 27” Bosch AeroTwin wiper blades are the superior choice for your W221 S-Class. They are the most durable and best fit for your car. They last about a year, or longer with proper cleaning and care. Bosch is the OEM choice for Mercedes, and they were fitted on your car from the factory. Installation is super easy and takes less than a minute, they snap right on!
Why Your W221 S-Class Shouldn’t Use Two Differently Sized Wiper Blades
When using two differently sized wiper blades, the intermittent wipers on the W221 will not function properly. Due to the difference in weight of each wiper blade, the windshield does not get wiped properly. This is why 27” is the recommended W221 wiper blade for both sides, and these Bosch AeroTwin blades are the best option. Many companies sell wiper blade packs with 28” and 26” blades, do not fall for that trap!
W221 Wiper Blade Part Numbers
The Bosch part number for these blades is 3-397-118-946, and they are the exact same as the Mercedes part number of 221-820-13-00. Why spend the extra money on Mercedes branded blades when you can get the same part from Bosch?