Symptoms
Weak airflow or a musty smell, especially after dusty trips.
The fix, step by step
- This is the same as on the wagon.
- On a left-hand-drive truck, slide the passenger seat back, recline it and lie in the footwell with a headlamp.
- Unsnap the two clips under the filter frame, let the hinged plate swing down, pull the old filter out and fit the new one with the airflow arrow toward the cabin.
Tools & part numbers
- Headlamp
- curved pick
- OEM INEOS #100326881, or Microguard 3692 reported to fit
Where to buy the parts
Microguard 3692 cabin air filter (owner-reported fit, no charcoal layer)Amazon (search) ↗
OEM INEOS cabin filter #100326881INEOS Grenadier service centre ↗
Hunting a used or discontinued part? Search eBay Motors for Ineos Grenadier Quartermaster parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.