vinkodex.Panoramic roof: the glass can shatter on its own while driving
Typically between 48,000 and 161,000 km. It does not show up on every car.
expensive
severity
between 48,000 and 161,000 km
mileage
1
sources
1 source. A forum, a video or a complaint.
The fault
How you spot it
In the official complaint database the 2014 to 2018 model years account for 230 complaints, and 378 across the whole corpus.
The characteristic course of events: the panoramic roof glass shatters while driving, with no impact, with a loud bang. Across the whole group 108 complaints use the wording "exploded / shattered into pieces", 155 say it happened while driving, 38 specifically note that nothing struck the roof, and 43 complaints mention injury or cuts from the glass.
By measurement the affected group is primarily the W205 C-Class (2015 to 2017), plus the MFA platform GLA (X156) and CLA (C117) in the 2014 to 2015 model years.
There is no rattle beforehand and no warning. The traces of a replacement show on the seal and the bonding. The replacement is not cheap, and the broken glass falls into the cabin.
The complaint database is American, and the panoramic roof is more common there as an option. The phenomenon itself does not depend on the market.
Which model
Who it affects
The card opens the generation, the engine or the transmission.
Generations and models
3 generations.
Mercedes-Benz
W205
C-Class
M 93 / CC BY-SA 3.0 de
Mercedes-Benz C-Class W205
2014–2018
Mercedes-Benz
X156
GLA-Class
M 93 / CC BY-SA 3.0 de
Mercedes-Benz GLA-Class X156
2014–2018
Mercedes-Benz
C117
CLA-Class
M 93 / CC BY-SA 3.0 de
Mercedes-Benz CLA-Class C117
2014–2018
vinkodex.Checklist
Panoramic roof: the glass can shatter on its own while driving
What you would check for this fault. Take it to the car.
Before you buy
Checklist
What you tick stays on this device only.
Sources
How we know
reported complaints only. That does not prove the car you are looking at has it.
Information, not an expert opinion
We write the descriptions, and we put the source next to them. A person reviews them before they go out. They are still information, not a technical expert opinion.
- A fault on the list does not mean the car you are looking at has it.
- A fault missing from the list does not mean the model is fault-free. Write-ups are made model by model. Not all of them are done.
- You decide whether to buy. This is no substitute for an inspection. That needs a workshop and a history check.