AutoStatsIQ
Data through Oct 2026
Model year

2015 Thor Motor Coach Four Winds Siesta

Other, diesel, 4x2, built in Germany. Owner complaints on file from Oct 11, 2017 to Jul 20, 2020.

Recalls (1)Complaints (2)Investigations (1)Bulletins (3)
Recall campaigns covering this model year1111k vehicles or units across those campaigns
Owner complaints2Close to the median 2015 other
Severity index0.02015 others average 5.9
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2015 Thor Motor Coach Four Winds Siesta peaked in 2017, with 1 filed

Owner complaints about this model year, by the year they were filed with NHTSA.

00.250.50.75120171201820192020202120222023202420252026
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

50% of complaints about the 2015 Thor Motor Coach Four Winds Siesta name electrical system

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

Electrical system
1
Stability and traction control
1
Speed control
1
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

One recall campaign covers the 2015 Thor Motor Coach Four Winds Siesta

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Recall campaigns for the 2015 Thor Motor Coach Four Winds Siesta
CampaignFiledSubjectComponentVehiclesRemedy
17V-758Nov 22, 2017See a list of the affected trailer models at: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17V758-5764.pdfEquipment110,400Part replacement
Source: NHTSA ODI recalls file.
Look up a VIN at NHTSA
Owner complaints

What owners reported about the 2015 Thor Motor Coach Four Winds Siesta

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

2 complaints on file, page 1 of 1.

  1. Filed Jul 20, 2020Failure Jul 19, 202025,000 milesTucson, AZElectrical system, Electronic stability control (esc), Vehicle speed control

    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.

    NHTSA complaint 11340363
  2. Filed Oct 11, 2017Failure Sep 21, 201722,000 milesTucson, AZUnknown or other

    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.

    NHTSA complaint 11032978
Source: NHTSA ODI complaints file.
Investigations

1 NHTSA investigation on file

  • PE20021 Preliminary evaluation, Equipment
    Trimark 060-1650 Door Latch Failures
    Opened Nov 23, 2020, closed Dec 13, 2024
Source: NHTSA ODI investigations file.
All investigations
Service bulletins

3 manufacturer communications cover this model year

Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall.

  • RC000218SAOwner Mar 25, 2021 · Service Bulletin/Repair Instructions
    On certain model year 2012– 2018 5-ton Sprinter vehicles that were upfitted into campers or recreational vehicles (“RVs”), one or more of the rear-wheel speed sensors may experience an electrical failure, which potentially could lead to a disablement of t…
  • LTR 120519 Dec 5, 2019 · Service Bulletin/Repair Instructions
    This letter stated that there were no Service Bulletins or Technical Service Bulletins issued for the month of November, 2019.
  • LTR 110317 Nov 3, 2017 · Service Bulletin/Repair Instructions
    This letter stated that there was one (1) Service Notification issued for the month of October, 2017.
Source: NHTSA manufacturer communications files.
About service bulletins