The mercedes benz thor motor coach suddenly went limp (wouldn't go higher than first gear or faster than about 10-15 MPH). The yellow esp, ABS and asr/bas indicator lamp lit while the engine was running, even when it was stationary. Cruise control became inactive. The coach's operating manual suggested to not drive the vehicle as it could result in an accident. After researching more on the topic, we found that it's a problem that many mercedes sprinters have and may be under extended federal warranty.
The worst 2015 Thor Motor Coach Four Winds Siesta problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Acceleration1
- Driver assistance1
- Electrical1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Acceleration1
- Driver assistance1
- Electrical1
Recalls 2
Equipment
- What is wrong
- Thor Motor Coach (Thor) is recalling various 2003-2018 recreational vehicles, equipped with Kidde Plastic-Handle or Push Button 'Pindicator' Fire Extinguishers. See a list of the affected trailer models at: These extinguishers may become clogged, preventing the extinguisher from discharging as expected or excessive force may be needed to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. For a full list of the affected fire extinguisher models visit:
- Risk
- In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.
- Remedy
- Thor will notify owners, instructing them to contact Kidde for a replacement fire extinguisher, free of charge. The recall began on January 15, 2018. Owners may contact Thor customer service at 1‑877‑500‑1020, or Kidde customer service toll-free at 1‑855‑262‑3540, or online at www.kidde.com and click on "Product Safety Recall" for more information.
Recall number 17V758000 · Recall details
Equipment: recreational vehicle/trailer
- What is wrong
- Thor Motor Coach (Thor) is recalling certain model year 2015 Four Winds 5000, Hurricane, Miramar, Chateau Citation, Chateau, Four Winds Siesta, Windsport, and Freedom Elite motorhomes manufactured August 7, 2014, to October 17, 2014. The affected motorhomes have awnings whose mounting brackets may crack, and the awnings may fall.
- Risk
- If an awning falls, there is an increased risk of injury to anyone under the awning.
- Remedy
- Thor has notified owners, and dealers will replace the defective mounting brackets, free of charge. The recall began on November 10, 2014. Owners may contact Thor customer service at 1‑877‑855‑2867. Thor's number for this recall is RC000095.
Recall number 14V695000 · Recall details
See all 2 recalls for the 2015 Thor Motor Coach Four Winds Siesta
Defect investigations
Trimark 060-1650 Door Latch Failures
On November 23, 2020, the Office of Defects Investigation (ODI) opened PE20021 to investigate allegations of inoperative Trimark THP 060-1650 door lock/latches originally equipped on model years (MY) 2015-2017 Class A and Class C motorhomes.ODI received forty-six Vehicle Ownerâs Questionnaires (VOQs) describing consumers being locked in or out of their vehicles.The door latch, containing a die-cast zinc plunger, was produced by Equality during calendar years 2014-2016. The die-cast may become porous and brittle over time and can break without warning, causing the vehicle owner to be unable to open the recreational vehicle door equipped with the latch.If the motorhome does not have any other doors such as some Class A models, occupants could be trapped inside, needing to climb out using the emergency exits. If locked out, owners would be unable to easily get in and retrieve children and pets. ODI analyzed the data provided by Trimark in response to its January 27, 2021 information request letter.Although an elevated failure rate was evident on a specific combination of plunger bolt, door lock/latch assembly and door, the data showed that most failures occurred within the first two years of service on the affected 2015-2017 vehicles.This data suggests that component failures generally would have already occurred.Further, ODI data reflects a downward trend in complaints after calendar year 2018 and for post- MY 2016 vehicles.This downward trend may be attributed Trimark's actions in 2016 such as changes in the manufacturing process of its zinc plunger component for the relevant population and its 2016 decision to switch to a steel plunger. In view of the nature of early-life failure, and failure rate trending downward for model years 2017 and newer, this Preliminary Evaluation (PE) is closed. The closing of this investigation does not constitute a finding by the federal safety agency that a safety-related defect does not exist.The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to
PE20021
Technical service bulletins for the 2015 Thor Motor Coach Four Winds Siesta 3
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- On certain model year 2012– 2018 5-ton Sprinter vehicles that were upfitted into campers or recreational...
- This letter stated that there were no Service Bulletins or Technical Service Bulletins issued for the...
- This letter stated that there was one (1) Service Notification issued for the month of October, 2017.
What 2015 Thor Motor Coach Four Winds Siesta owners say
Most recent owner complaints, unedited.
The trimark rv door lock with dead bolt black, 60-1650 broke, locking us out of the rv. Had to get a state cop to help us break into the motor home. After doing some research discovered the bolt is made of zinc and very prone to breakage. I think this is a safety issue and trimark should have a recall on these locks.
Compare the 2015 Thor Motor Coach Four Winds Siesta
Other model years
2015
Questions about the 2015 Thor Motor Coach Four Winds Siesta
Is the 2015 Thor Motor Coach Four Winds Siesta reliable?
Owners have filed 2 complaints about the 2015 Thor Motor Coach Four Winds Siesta, close to a typical Four Winds Siesta model year.
What is the most common problem with the 2015 Thor Motor Coach Four Winds Siesta?
Acceleration and speed control, with 1 complaint. Next is driver assistance (1).
How many recalls does the 2015 Thor Motor Coach Four Winds Siesta have?
2 recalls, covering equipment.
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