CarRecallWatchThe 2018 Newmar Mountain Aire has 16 safety recalls on file with NHTSA.
Owners have filed 1 complaint with NHTSA.
The most-reported problem area is Engine (1 report).
2018 Newmar Mountain Aire recalls
Diesel fuel leak can cause fire in motorhomes
A sealing washer in the high-pressure fuel rail assembly may not seat correctly in the pilot boreholes, which can allow diesel fuel to leak from the rail.
Fuel rail may leak, creating a fire risk
The high pressure fuel rail assembly on certain diesel motorhomes may leak fuel.
Rear lights and turn signals may fail, raising crash risk
Some motorhomes may have had their rear power distribution module damaged during manufacturing.
Bedroom Header May Fall onto Bed, Risking Injury
Certain Newmar motorhomes from 2018 to 2020, including the Essex, King Aire, and Mountain Aire models, have a bedroom fascia header that may fall unexpectedly onto the bed.
Rear lights may fail, raising crash risk
The rear Power Distribution Module (PDM) in certain motorhomes built on a Daimler Trucks chassis may have been damaged during manufacturing.
Overheating Power Supply Can Cause Motorhome Fire
The power supply for the WiFiRanger system in certain motorhomes may overheat.
Loose Brake Caliper Bolts Can Reduce Braking Power
Some 2018-2019 Newmar motorhomes may have brake caliper mounting bolts that were not tightened enough during assembly.
Entry Door May Open While Driving, Raising Crash Risk
The entry door latch rods on certain motorhomes may be improperly adjusted, so the door can open while the vehicle is in motion.
Loose Brake Caliper Bolts May Reduce Braking and Raise Crash Risk
Brake caliper mounting bolts on certain motorhomes may not have been tightened to the proper specification, so they can loosen over time.
Slide-out rooms may move unexpectedly, risking injury
On certain 2018 Newmar motorhomes, the slide-out rooms can move in or out without warning when the ignition key is in the off or accessory position and the battery disconnect switch is on.
Wipers May Not Clear Windshield, Reducing Driver Visibility
Some motorhomes have windshield wiper arms with an incorrect bend, so the wipers may not properly contact the glass.
DEF tank bracket can damage tire, risking tire failure
The diesel exhaust fluid (DEF) tank bracket on certain motorhomes may contact the tag axle tire.
Loose Breaker Box Connections Can Overheat and Cause Fire
Some motorhomes from model year 2018 have electrical connections inside the breaker box that may not be properly tightened.
Loose ATS Power Connection Can Overheat and Cause Fire
A loose power connection at the Automatic Transfer Switch (ATS) in certain Newmar motorhomes can cause heat to build up in the wiring.
Fire extinguishers may clog or fail to discharge
Certain Newmar motorhomes are equipped with Kidde plastic-handle or push-button "Pindicator" fire extinguishers that may become clogged, so the extinguisher may not discharge as expected or may require excessive force to activate.
Front Ball Joints Can Loosen, Causing Steering Loss
Certain motorhomes built on a Spartan Motors chassis may have front suspension ball joints on the independent front suspension (IFS) modules that can loosen and separate.
Most common 2018 Newmar Mountain Aire problems
Problem areas named in the 1 complaints owners filed with NHTSA.
| Problem area | Reports |
|---|---|
| Engine | 1 |
What owners report
These vehicles, built on a Spartan K3 chassis and powered by a Cummins ISX-12 engine are experiencing very high failure rates in the DEF system control head. When the control head fails, it sends error codes that result in derating engine power dramatically and/or immediate engine shut-down. This creates a very dangerous situation for anyone driving a motorhome that experiences this problem. In extreme cases, it may stop the vehicle in traffic lanes. Spartan Chassis says replacement DEF control heads are in extremely short supply and they will not provide one to a repair facility unless the affected vehicle has experienced a full derating; an initial warning message of a failing control h
2018 Newmar Mountain Aire questions
Does the 2018 Newmar Mountain Aire have any recalls?
Yes. NHTSA lists 16 safety recalls for the 2018 Newmar Mountain Aire: Diesel fuel leak can cause fire in motorhomes; Fuel rail may leak, creating a fire risk; Rear lights and turn signals may fail, raising crash risk; Bedroom Header May Fall onto Bed, Risking Injury; Rear lights may fail, raising crash risk. Recall repairs are normally free at an authorized dealer.
What are the most common problems with the 2018 Newmar Mountain Aire?
Based on 1 owner complaint filed with NHTSA, the most-reported problem areas are Engine (1).
How do I check if a recall on my 2018 Newmar Mountain Aire has been fixed?
Enter your 17-character VIN in our VIN recall check. It shows open recalls that have not been repaired on your specific vehicle. Recall repairs are normally free at an authorized dealer.