Hmmm, this makes me wonder if mine has a problem. It runs fine and so far seems to regenerate every 20-30 hours.
Have you mentioned this concern to your dealer? If so, they should have informed you of this TSB to rectify the situation.
TSB-2022-035-E-R2 June 27, 2022 Revised: February 13, 2023
FIX AS FAIL EXTENSION: B-Series; LX3310 Strong Exhaust Gas Smell
Repairs described in this bulletin may be made only in the event of a failure.
KOBD ACE must be used when installing the kit.
Product Line: B-Series Model: LX3310 Serial Numbers Affected: Model Serial Numbers LX3310 ROPS, LX3310 CAB 10001 to 14735
Issue: The LX3310 may produce a strong exhaust gas smell during certain working conditions.
Solution: If the above issue occurs, install the appropriate heater relay kit.
Parts Information: Part Number, Description, Quantity, & Remarks
6C810-99712 RELAY,KIT(HEATER,BH) 1 ROPS
6C830-99713 RELAY,KIT(HEATER,BHQ) 1 CAB
Warrenty covers parts & installation for 5 Years from the retail date.