IllustrationEXTREME EXOTHERMIC REACTION IN EXHAUST CATALYST GENERATED SUFICIENT LACALIZED TEMPERATURES TO IGNITE SURROUNDING MATERIAL, RESULTING IN FIRE AND DAMAGE TO REAR PORTION OF TRANSIT BUS.
1995 Neoplan AN440
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all AN440 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 0 of 3 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Engine And Engine Cooling. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports3 fire reports0 injury reports
What owners actually said
3 reportsEXTREME EXOTHERMIC REACTION IN EXHAUST CATALYST GENERATED SUFFICIENT LOCALIZED TEMPERATURES TO IGNITE SURROUNDING MATERIAL, RESULTING IN FIRE AND DAMAGE TO REAR PORTION OF TRANSIT BUS.
EXTREME EXOTHERMIC REACTION IN EXHAUST CATALYST GENERATED SUFFICIENT LOCALIZED TEMPERATURES TO IGNITE SURROUNDING MATERIAL, RESULTING IN FIRE AND DAMAGE TO REAR PORTION OF TRANSIT BUS.
Official recalls
498V298000 · Fuel System, Other:delivery:hoses, Lines/piping, And Fittings
Nov 19, 1998
VEHICLE DESCRIPTION: TRANSIT COACHES EQUIPPED WITH CUMMINS L-10 ENGINES AND NELSON CATALYSTS AND SOLD TO LOS ANGELES, CALIFORNIA TRANSIT AUTHORITY. THE CATALYST CAN EXPERIENCE HIGH TEMPERATURES, WHICH COULD BE CAUSED FROM UNBURNED METHANE IGNITING INSIDE THE CATALYST BRICK.
Consequence & remedy
Consequence: THIS CONDITION CAN RESULT IN EXTREME OVERHEATING OF THE CATALYST AND COULD CAUSE IGNITION OF SURROUNDING COMBUSTIBLES IN CLOSE PROXIMITY TO THE CATALYST.
Remedy: DEALERS WILL INSPECT THE VEHICLES FOR PROPER INSTALLATION AND POSITIONING; INCREASE THE SIZE OF THE FIBERGLASS HOLE SURROUNDING THE TAIL PIPE, REMOVE A RUBBER AIR INLET BOOT THAT WAS TOO CLOSE TO THE CATALYST; REPLACE THE FLEX PIPE IN THE EXHAUST SYSTEM; AND ADD A BLANKET AROUND THE CATALYST TO PROVIDE ADDED INSULATION.
96V182000 · Fuel System, Other:storage:tank Assembly
Sep 23, 1996
THESE BUSES ARE EQUIPPED WITH COMPRESSED NATURAL GAS FUEL TANKS SUPPLIED BY EDO CANADA. THE FUEL CYLINDER STRAPS EXPAND WHEN TANKS ARE PRESSURIZED CAUSING BRACKETS TO BREAK THE MOUNTING HARDWARE.
Consequence & remedy
Consequence: THIS CONDITION CAN CAUSE THE CYLINDER TO FALL INCREASING THE RISK OF EXPLOSION OR FIRE.
Remedy: A NEW STRAP WITH ELASTOMERIC SPRINGS THAT WILL ALLOW THE STRAP TO EXPAND WITH THE TANK HAS BEEN DESIGNED AND WILL BE INSTALLED ON THESE BUSES.
96V183000 · Fuel System, Other:storage:tank Assembly
Sep 23, 1996
THE TYPE 4 COMPRESSED NATURAL GAS (CNG) FUEL TANK SUPPLIED BY EDO CANADA CAN RUPTURE DURING FUELING.
Consequence & remedy
Consequence: RUPTURE OF A CNG FUEL TANK CAN CAUSE CNG LEAKAGE INCREASING THE RISK OF A FIRE OR EXPLOSION.
Remedy: EACH TANK IS BEING VISUALLY INSPECTED, ASSISTED BY DYE PENETRANT AND RESONANCE TESTED. A DETECTION SHIELD IS PLACED UNDER EACH PAIR OF TANKS, UNDER THE BUS, TO PROVIDE EASE OF INSPECTION FOR ANY DAMAGE. ANY DAMAGED TANK WILL BE REPLACED.
95V188001 · Fuel System, Other:storage:tank Assembly:pressure Relief Devices
Aug 30, 1995
SOME TEMPERATURE SENSITIVE TRIGGERS WERE NOT X-RAYED. THESE TRIGGERS COULD CONTAIN INTERNAL VOIDS THAT WOULD MAKE THE TRIGGERS SUSCEPTIBLE TO ADVANCED CREEP CAUSING FALSE ACTIVATION AND VENTING OF THE CNG.
Consequence & remedy
Consequence: VENTING OF THE CNG COULD RESULT IN A FIRE.
Remedy: NEOPLAN WILL REPLACE THE PRD WITH THE NEWER DESIGN "GENERATION 2.5" PRESSURE RELIEF DEVICE.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.