2018 Newmar Mountain Aire
Only 1 complaint on file — too few for a fair verdict.
This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.
Only 1 complaint on file — too few for a fair verdict. The data below is complete but unranked.
COMPLAINTS PER YEAR
View as data table
| Year | Complaints |
|---|---|
| 1991 | 1 |
| 1994 | 0 |
| 1995 | 3 |
| 1996 | 2 |
| 1997 | 0 |
| 1998 | 2 |
| 1999 | 1 |
| 2000 | 7 |
| 2001 | 5 |
| 2002 | 8 |
| 2003 | 10 |
| 2004 | 7 |
| 2005 | 4 |
| 2006 | 0 |
| 2007 | 1 |
| 2008 | 1 |
| 2009 | 0 |
| 2010 | 0 |
| 2011 | 0 |
| 2012 | 0 |
| 2013 | 0 |
| 2014 | 1 |
| 2015 | 1 |
| 2016 | 0 |
| 2017 | 0 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 0 |
| 2021 | 0 |
| 2022 | 2 |
| 2023 | 0 |
KNOWN PROBLEM AREAS
Only 1 complaint on file for this model year -- too few to rank by share. Raw counts only, below.
1 of 1 total report mentions: engine.
Show complaint excerpts
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.
NHTSA ODI report, 20210707
SAFETY TIMELINE
Newmar Corporation (Newmar) is recalling certain 2017-2018 Dutch Star, 2016-2018 Mountain Aire and London Aire, and 2012-2018 Essex and King Aire motorhomes built on a Spartan Motors chassis.
Remedy: Newmar will notify owners, and Spartan service centers will remove, clean, apply thread locker, reinstall and torqued the ball joints, as necessary, free of charge. The recall began on May 3, 2017.
Campaign 17V195000 — check if this car was fixed
Newmar Corporation (Newmar) is recalling certain model year 2016-2018 Bay Star, Bay Star Sport, Canyon Star, Dutch Star, Essex, King Aire, London Aire, Mountain Aire, New Aire, Ventana and Ventana LE motorhomes.
Remedy: Newmar will notify owners, and dealers will inspect the electrical connection at the ATS, tightening it as necessary, free of charge. The recall began on February 5, 2018. Owners may contact Newmar customer service at 1-800-731-8300.
Campaign 17V830000 — check if this car was fixed
Newmar Corporation (Newmar) is recalling various 1995-2018 motorhomes. A list of the affected vehicles available at: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17V809-2309.pdf.
Remedy: Newmar will notify owners, and instruct them to contact Kidde for a replacement fire extinguisher, free of charge. The recall began on February 7, 2018.
Campaign 17V809000 — check if this car was fixed
Newmar Corporation (Newmar) is recalling certain 2018 Newmar Bay Star, Bay Star Sport, Canyon Star, Ventana LE, Ventana, Dutch Star, New Aire, Mountain Aire, London Aire, Essex, and King Aire motorhomes.
Remedy: Newmar will notify owners, and dealers will tighten the loose electrical connections, as necessary, free of charge. The recall began on May 17, 2018. Owners may contact Newmar customer service at 1-800-731-8300.
Campaign 18V236000 — check if this car was fixed
Newmar Corporation (Newmar) is recalling certain 2016-2018 Newmar Mountain Aire motorhomes. The Diesel Exhaust Fluid (DEF) tank bracket may contact the tag axle tire, possibly causing tire damage.
Remedy: Newmar will notify owners, and Spartan Motors dealers will move the DEF bracket away from the tire, free of charge. The recall began on June 21, 2018. Owners may contact Newmar customer service at 1-800-731-8300.
Campaign 18V307000 — check if this car was fixed
Newmar Corporation (Newmar) is recalling certain 2018-2019 Newmar Mountain Aire, London Aire, Essex, and King Aire motorhomes.
Remedy: Newmar will notify owners, and dealers will replace the wiper arms, free of charge. The recall began on August 3, 2018. Owners may contact Newmar customer service at 1-800-731-8300.
Campaign 18V387000 — check if this car was fixed
Newmar Corporation (Newmar) is recalling certain 2018 Newmar Bay Star, King Aire, London Aire, Mountain Aire, Bay Star Sport, Canyon Star, Dutch Star, Essex, New Aire, Ventana LE, and Ventana motorhomes.
Remedy: Newmar will notify owners, and dealers will replace the slide-out room controller, free of charge. The recall began August 24, 2018. Owners may contact Newmar customer service at 1-800-731-8300.
Campaign 18V438000 — check if this car was fixed
Newmar Corporation (Newmar) is recalling certain 2017-2019 Newmar Ventana LE and Ventana motorhomes, 2018 Mountain Aire and Essex motorhomes, and 2017-2018 London Aire motorhomes.
Remedy: Newmar will notify owners, and authorized Daimler Trucks service centers will inspect the caliper mounting bolts and tighten them to the proper specification, free of charge. The recall began on August 30, 2018.
Campaign 18V505000 — check if this car was fixed
Newmar Corporation (Newmar) is recalling certain 2018-2019 Newmar Ventana LE, Mountain Aire, Essex, Ventana, Dutch Star, New Aire, London Aire and King Aire motorhomes.
Remedy: Newmar will notify owners, and dealers will readjust the door latch rod, free of charge. The recall began September 5, 2018. Owners may contact Newmar customer service at 1-800-731-8300.
Campaign 18V518000 — check if this car was fixed
Newmar Corporation (Newmar) is recalling certain 2018-2019 Newmar Essex, Ventana LE, Ventana, London Aire, and Mountain Aire vehicles. The brake caliper mounting bolts may not have been sufficiently tightened.
Remedy: Newmar has notified owners, and Daimler Trucks North America dealers will inspect and tighten the brake caliper mounting bolts, free of charge. The recall began January 10, 2019. Owners may contact Newmar customer service at 1-800-731-8300.
Campaign 18V859000 — check if this car was fixed
Newmar Corporation (Newmar) is recalling certain 2018-2019 Bay Star, Essex, New Aire, 2018 Bay Start Sport, Canyon Star, Dutch Star, King Aire, Mountain Aire, Ventana LE, Ventana, and London Aire motorhomes.
Remedy: Newmar has notified owners, and dealers will replace the power supply, free of charge. The recall began April 18, 2019. Owners may contact Newmar customer service at 1-800-731-8300.
Campaign 19V257000 — check if this car was fixed
Newmar Corporation (Newmar) is recalling certain 2016-2019 Ventana LE and 2017-2019 Dutch Star, Essex, London Aire, Mountain Aire and Ventana, and 2018-2019 New Aire motorhomes built on a Daimler trucks chassis.
Remedy: Newmar will notify owners, and Daimler Trucks dealers will inspect and replace the rear PDM, as necessary, free of charge. The recall began July 18, 2019. Owners may contact Newmar customer service at 1-800-731-8300.
Campaign 19V426000 — check if this car was fixed
Newmar Corporation (Newmar) is recalling certain 2018-2020 Mountain Aire, Essex, and King Aire motorhomes. The bedroom fascia header may fall unexpectedly onto the bed.
Remedy: Newmar will notify owners, and dealers will add screws and brackets to properly secure the fascia header, free of charge. The recall began September 17, 2019. Owners may contact Newmar customer service at 1-800-731-8300.
Campaign 19V610000 — check if this car was fixed
Newmar Corporaton (Newmar) is recalling certain 2016-2019 Ventana LE, 2017-2020 Ventana, London Aire, Essex and Dutch Star, 2017-2019 Mountain Aire, 2018-2020 New Aire, and 2020 Kountry Star motorhomes that received the 'inspection-only' remedy from...
Remedy: Newmar will notify owners, and Daimler Trucks North America dealers will replace the PDM, free of charge. This recall began September 11, 2020. Owners may contact Newmar's customer service at 1-800-731-8300.
Campaign 20V421000 — check if this car was fixed
Newmar Corporation (Newmar) is recalling certain 2019 Mountain Aire, 2020-2021 New Aire, 2020-2022 Super Star, 2018-2021 Ventana, and Dutch Star vehicles equipped with certain Cummins diesel engines.
Remedy: Cummins service centers will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owner notification letters were mailed on August 24, 2021. Owners may contact Newmar customer service at 1-800-731-8300.
Campaign 21V506000 — check if this car was fixed
Newmar Corporation (Newmar) is recalling certain 2017-2022 Dutch Star, 2017-2019 Mountain Aire, 2019-2021 Ventana and 2021 New Aire motorhomes.
Remedy: Dealers will inspect the rail threads, and replace the rail as necessary, free of charge. Interim notification letters were mailed to owners on July 16, 2021. Owners may contact Newmar customer service at 1-800-731-8000.
Campaign 21V372000 — check if this car was fixed
BUY-SMART CHECKLIST
2018 Newmar Mountain Aire — pre-purchase inspection
- Test/inspect for engine issues (1 reports on file for this year).
- Verify recall 17V195000 (suspension) has been completed.
- Verify recall 17V830000 (electrical system) has been completed.
- Verify recall 17V809000 (equipment) has been completed.
- Verify recall 18V236000 (electrical system) has been completed.
- Verify recall 18V307000 (fuel system, diesel, tires) has been completed.
- Verify recall 18V387000 (visibility) has been completed.
- Verify recall 18V438000 (electrical system, equipment) has been completed.
- Verify recall 18V505000 (service brakes, hydraulic) has been completed.
- Verify recall 18V518000 (equipment) has been completed.
- Verify recall 18V859000 (service brakes, air) has been completed.
- Verify recall 19V257000 (equipment) has been completed.
- Verify recall 19V426000 (electrical system, exterior lighting) has been completed.
- Verify recall 19V610000 (equipment) has been completed.
- Verify recall 20V421000 (electrical system, exterior lighting) has been completed.
- Verify recall 21V506000 (fuel system, diesel) has been completed.
- Verify recall 21V372000 (fuel system, diesel) has been completed.
FAQ
Is the 2018 Newmar Mountain Aire reliable?
There isn't enough NHTSA complaint data on file yet to give this model year a verdict.
What are the most common problems with the 2018 Newmar Mountain Aire?
The most-reported component is engine, accounting for 100% of complaints on file.
How many recalls does the 2018 Newmar Mountain Aire have?
16 recalls on file for this model year.
Data updated 2026-07-11 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.