Bosch Cabin Air Filter P/N:C3870WS
Bosch C3861WS cabin air filter for the 2007-2015 Audi Q7 and other vehicles filters the air entering the cabin with an activated carbon layer.
A clogged or saturated cabin filter can show up as weaker airflow from the vents, musty or exhaust odors inside, or more dust on the dash. Before you replace the filter, rule out a failing blower motor or a blocked vent, since those can also weaken airflow. This listing is one filter, and the 2007-2015 Audi Q7 takes one.
It is a direct-fit replacement cabin air filter for the 2007-2015 Audi Q7, the 2003-2006 and 2008-2018 Porsche Cayenne and the 2004-2010 Volkswagen Touareg.
Fit and size
Build and materials
Product information is for general reference and may contain errors. See our Disclaimer.
Can I use the Bosch C3861WS as a cabin air filter replacement for the 2007-2015 Audi Q7?
Yes. The Bosch C3861WS cabin air filter fits the 2007-2015 Audi Q7, and that vehicle takes one filter.
Is the Bosch C3861WS a HEPA cabin air filter?
No. The Bosch C3861WS is not a HEPA filter; it uses activated charcoal media with an activated carbon pre-filter for odor removal.
Is this one of the Bosch car filters that replaces the engine air filter?
No. This Bosch C3861WS filters the air entering the cabin. An engine air filter is a separate part and is not included.
How often should this Bosch cabin air filter be replaced?
The recommended replacement interval for the Bosch C3861WS is 12,000 miles.
What does the carbon layer in this filter absorb?
The activated carbon layer absorbs exhaust fumes, industrial pollutants and organic compounds. The filter also captures over 98% of airborne dust, grime and soot.
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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.