Tiffin WAYFARER problems and owner complaints

Traveling on I 25 construction on highway created lots of bumps. The water tank mounted near rear of motor home ripped free of its mounting bolts and dropped down, only thing keeping it from completely falling off was the generator exhaust pipe which was underneath the tank. This also tore the support strap off the exhaust pipe. The water tank is mounted in an aluminum casing with a flange with bolts attached to frame. Called Tiffin and was told they were aware of this problem and could send us some straps to support tank until we could get…

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The Tiffin Wayfarer is built on a MB Sprinter 3500 chassis. Tiffin adds rear wheelwell liners made of plastic. These liners are held onto the chassis by 4 screws all on the outside of the liner. There is no inside support of the liner or reinforcement of the screws. My right side liner detached while traveling on I-81 in PA at 65 mph. It went under the wheels which caused the vehicle to bounce and it acted like a blow-out. I pulled over and could see no significant damage and there were no warning lights so we kept traveling. Luckily there wer…

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All driver assist functions randomly shut down and start working again. It may work correctly all day and then the next day it might work for 30 minutes or an hour or not at all. It has been to Mercedes for this problem, I don't think they know how to fix it. Based on the number of people I read having the same problem. It might be related to computer hardware being hard to get, makes it hard to drive much distance when the system is designed to keep you from accidentally running into something and then it just shuts down.

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During a cross country trip, failure of tire valve extender, resulted in loss of tire pressure. This sudden loss of pressure could have resulted in a vehicle highway accident. This problem occurred twice (each incident within 2 hours of each other). Our RV, has dual rear tires, and was not detected until we stopped for fuel. We did not receive an alert from the tire pressure sensor that pressure was lost. The first failure was detected when we stopped for gas and noticed the right rear, outside tire was severely damaged/flat. Fortunatel…

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Alcoa outer dualy rim developed a circumferential crack. Alcoa returned under warranty. Now the opposite side wheel has failed. Alcoa part number 251802. Mfg date 081021 Made in USA

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COMPLAINT 1 , Iowa Failure ([XXX]) Vehicle: 2026 Tiffin Wayfarer XPW VIN: [XXX] Date of Incident: [XXX] Location: Near [XXX] Mileage: Approximately 10,000–11,000 miles Narrative: While traveling at highway speed on [XXX] near Grinnell, Iowa, the rear wheel and hub assembly of my 2026 Tiffin Wayfarer XPW catastrophically failed. The rear wheels dislodged from the vehicle, disabling it on the highway. The vehicle had approximately 10,000–11,000 miles at the time of failure and was purchased new on [XXX] Emergency roadside repair was required. …

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Answers to NHTSA questions. Q. What component or system failed or malfunctioned, and is it available for inspection upon request? A. I don’t know if a system failed or malfunctioned, I only know how the system performed under the described conditions. Q. How was your safety or the safety of others put at risk? A. My safety and the safety of others were put at risk because the vehicle slammed on the brakes causing other drivers to respond to avoid a collision. Q. Has the problem been reproduced or confirmed by a dealer or independent service …

Look up ODI 11560733 at NHTSA ↗

All driver assist functions randomly shut down and start working again. It may work correctly all day and then the next day it might work for 30 minutes or an hour or not at all. It has been to Mercedes for this problem, I don't think they know how to fix it. Based on the number of people I read having the same problem. It might be related to computer hardware being hard to get, makes it hard to drive much distance when the system is designed to keep you from accidentally running into something and then it just shuts down.

Look up ODI 11441635 at NHTSA ↗

Answers to NHTSA questions. Q. What component or system failed or malfunctioned, and is it available for inspection upon request? A. I don’t know if a system failed or malfunctioned, I only know how the system performed under the described conditions. Q. How was your safety or the safety of others put at risk? A. My safety and the safety of others were put at risk because the vehicle slammed on the brakes causing other drivers to respond to avoid a collision. Q. Has the problem been reproduced or confirmed by a dealer or independent service …

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Vehicle flashed a warning that Active Distance Assistance was not functional, and within a few minutes started to veer left, as if there was a flat tire (which there was not), so I was trying to keep it centered in my lane when the steering wheel suddenly turned counterclockwise in my hands and swerved the vehicle to the hard left into an oncoming lane. I had to hit the brakes hard and yank the steering wheel back to the right to bring the vehicle back into my lane, just barely avoiding on coming cars, who had slowed when they saw me coming at …

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IN JULY OF 2020 THE LEFT FRONT WHEEL SENSOR FAILED CAUSING ABS/CRUISE CONTROL AND RSC TO FAIL. ON JANUARY 18TH, 2021 THE LEFT REAR WHEEL SPEED SENSOR FIALED PROVIDING FAULT CODE C0037. THE ABS/CRUISE CONTROL AND RSC FAILED. SYMPTOMS INCLUDE TRANSMISSION SHIFT ISSUES AND SPEED ISSUES. NORMAL DRIVING CONDITIONS AND IT WAS NOTSET OF BY HIGH WINDS AS REPORTED BY OTHER OWNERS. THIS FAILURE IS CAUSING AN UNSAFE DRIVING CONDITION. I WAS DRIVING AT 60 MPH ON THE HIGHWAY NORMAL WEATHER NO RAIN OR WINDS.

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Cruise control disengagement . Abrupt ceasing interferes with anti collision and speed control causing slowing speeds without warning, could be a risk to those following as well disrupting the flow of traffic. The vehicle has been inspected by 3 MB service technicians. 1 .MB of Selma, TX-09/2021 2. MB of Boerne, TX-09/2021 3. MB of Birmingham, AL @ Casa Grande, AZ-Tiffin Rally-10/2021 All 3 dealers confirmed problem. The RV manufacturers reps as well as MB reps have inspected the issue It was taken today 01/04/2022 to MB of Boerne as the iss…

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The RV currently is sitting at MB of Modesto where it can be inspected. The issue, when we attempted to rotate the rotatable front passenger seat, and an Airbag error was displayed on the dash and the vehicle was disabled, would not start. When we rotated the seat back we assumed it took pressure off of the wiring harness and the error disappeared and the vehicle started. We tried to rotate the seat back to its secure position but wires had become tangled under the seat and we could not secure the seat. We wanted to drive the RV to MB of Mo…

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On April 20, 2026 we discovered our 2025 Tiffin Wayfarer was experiencing a thermal runaway of the house battery charging system. The coach was in storage at a public RV storage facility. Our unit is a single enclosed unit with a roll up door. When we opened the bay door, we could tell the entire storage bay and coach were severely filled with toxic H2S gas. After the bay had been allowed to ventilate, I disconnected the shore power to stop the charging process. I called Tiffin Motorhomes Tech Support the next day and spoke with the Wayfar…

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