Sunroof exploded while driving down the road at approximately 30 MPH. Not near any overpasses or other vehicles.
2017 Mercedes-Benz CLA-Class body problems
severe Owners of the 2017 Mercedes-Benz CLA-Class have filed 3 NHTSA complaints about the body at roughly $1,500 to repair (U.S. federal records, as of September 2026). Source: NHTSA Office of Defects Investigation. See body across all vehicles →
Complaints
3
Recalls
0
Avg fix
$1,500
| Model year | body complaints |
|---|---|
| 2014 CLA-Class | 10 |
| 2015 CLA-Class | 15 |
| 2016 CLA-Class | 7 |
| 2017 CLA-Class (this page) | 3 |
| 2018 CLA-Class | 6 |
1crash
What stands out
Of the 5 model years of Mercedes-Benz CLA-Class we track for body problems, this one has the fewest owner complaints on file (3).
No new NHTSA body complaint has been filed on this vehicle in over 8 years — the issue may be aging out of the active population.
What owners are reporting 3 most recent
The Panoramic Sunroof Glass front cover has detached three times from my 2017 CLA 250 (VIN#[XXX]). The first time that it detached was with the previous owner and was repaired at a Mercedes dealership in Tampa Florida. It has since detached twice with ME and I have only owned it for 12 months. The first time that it detached with me, I was driving approximately 60 MPH on I-85 in Montgomery.…
The contact owns a 2017 Mercedes-Benz CLA250. The contact stated while driving 68-70 MPH, the front roof panel separated from the vehicle and flew off. The contact related the failure to NHTSA Campaign Numbers: 23V854000 (Structure) and 21V197000 (Structure). The dealer was notified of the failure and informed the contact that the VIN was not included. The manufacturer was notified of the failure…
Had body trouble with your 2017 Mercedes-Benz CLA-Class?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the body problem on the 2017 Mercedes-Benz CLA-Class?
It's a meaningful issue. 3 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $1,500.
At what mileage does the body typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $1,500 for body repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to body?
No active recalls currently cover body issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2017/Mercedes-Benz/CLA-Class.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.