Bosch Cabin Air Filter P/N:C3870WS
Bosch P3743WS cabin air filter for the 2007-2011 Mercedes-Benz CLS550 and other vehicles traps dust particles before air reaches the cabin. It is a particulate filter for the HVAC system.
A clogged cabin filter can show up as weak airflow from the vents or more dust inside the car. Before you replace the filter, rule out a blower or vent problem, since those can weaken airflow too.
The 2007-2011 Mercedes-Benz CLS63 AMG and the 2003-2009 Mercedes-Benz E320 take this filter, and so do many other Mercedes-Benz models. A 2007-2011 Mercedes-Benz CLS550 takes one filter; if your car is not named here, look up its year and model in the "Vehicles it fits" section.
Product information is for general reference and may contain errors. See our Disclaimer.
Will the Bosch P3743WS cabin air filter fit a 2007-2011 Mercedes-Benz CLS63 AMG?
Yes, the Bosch P3743WS fits the 2007-2011 Mercedes-Benz CLS63 AMG, and it fits the 2003-2009 Mercedes-Benz E320 too. For any other car, look up its year and model in the "Vehicles it fits" section.
Is the P3743WS a Bosch HEPA cabin air filter?
No, the Bosch P3743WS is a particulate cabin filter, not a HEPA filter, and it traps over 97.5% of dust particles 3 microns or larger.
How often should I change this Bosch car air filter?
The recommended replacement interval for the Bosch P3743WS is 12000 mi. Following that schedule helps keep the HVAC system running efficiently.
Does this Bosch cabin filter have an activated carbon layer for odors?
No. This particulate filter has no activated carbon pre-filter for odor removal.
Are Bosch car filters like the P3743WS tested as direct OE replacements?
Yes. Bosch designs and tests all its cabin air filters as direct OE replacements, with an OE-measured fit.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.