Airstream Interstate Engine problems by year

Vehicle then re-entered limp mode with no codes stored. Further diagnosis found the DPF clogged/broken, requiring full replacement. Prior to this trip, the same vehicle's EGR valve had already been cleaned twice and eventually replaced with the EGR cooler. Mercedes-Benz has separately extended the EGR valve warranty on this model range to 15 yrs/150,000 miles, indicating a known reliability issue. EGR problems are mechanically linked to DPF soot loading, and may have contributed to this DPF failure. All failures (EGR, DEF nozzle, DPF) occurred at approximately 72,815 miles - well under 100,000 miles and well short of the manufacturer's stated ~150,000-mile design life for these components. Filing to document a pattern of premature emissions-system failures on this platform and the real safety hazard created when the vehicle was forced into a dangerously slow, uncontrolled speed on a high-traffic mountain highway grade. It appears both the Diesel Particulate Filter, Injector Nozzle were the main failure points of this emission system. It should have at least a 10 year, 100,000 mile warranty (not 5yr, 100,000)! VIN: [[redacted]] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

before. Under the Dieselgate emission modification (per the 2021 Daimler/EPA/CARB settlement), the DEF/SCR system components got even more explicit extended coverage, since the settlement warranty language specifically calls out the SCR catalyst and related dosing components for extended protection beyond the base warranty. This component is failing on a regular basis and should be added to the recall regardless of whether it had the diesel gate modification.

power to stop the motion, manually retract the awning, and secure it to prevent detachment. This created an immediate risk of collision and danger to surrounding motorists. Additional failures include complete engine non-start, generator failure, and a severe propane odor originating from the exterior propane system. The propane odor was strong enough to trigger the interior propane alarm, indicating a potential fire or explosion risk. The vehicle is now completely inoperable. The engine will not start and the ignition key will not turn. The vehicle cannot be driven and would require towing for inspection. These failures occurred progressively under normal use and were not caused by collision, misuse, or modification. This vehicle is a 2016 Airstream Interstate built on a 2015 Mercedes-Benz Sprinter chassis; the VIN corresponds to the Mercedes chassis model year.