Built from official NHTSA complaint and recall data · data through 07/14/2026
Source: U.S. NHTSA complaint & recall data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
The most-reported problem — Engine (35.5% of complaints) — has no NHTSA recall or open investigation on file.
Engine complaints here are 2.8× the median for that category across the 2583 model-years tracked on this site.
4 of the 6 most-reported categories on this page are backed by a recall or open investigation; the other 2 rest on owner reports alone.
| Complaint category | Reports | Official status | Reference |
|---|---|---|---|
| Engine | 76 · 35.5% | No official action | — |
| Electrical System | 30 · 14% | Recalled | Recall 21V058000 · Recall 17V114000 · Recall 22V365000 |
| Fuel/propulsion System | 30 · 14% | No official action | — |
| Seat Belts | 18 · 8.4% | Recalled | Recall 21V032000 · Recall 17V251000 |
| Structure:body | 18 · 8.4% | Recalled | Recall 18V456000 · Recall 21V197000 · Recall 23V854000 |
| Air Bags | 15 · 7% | Recalled | Recall 17V627000 |
Recalled = an NHTSA safety recall covers this category, so a free repair exists. Under investigation = NHTSA has an open probe but no recall yet. Investigation closed = NHTSA examined it and closed the probe — this is not a defect finding; where a closed probe led to a recall we name the campaign. Not available = recall or investigation data could not be confirmed for this vehicle — it is not a “no”. Categories are matched by NHTSA's top-level component. Check your VIN at nhtsa.gov/recalls.
Percentages are the share of the 214 complaints citing each component; one complaint can cite several components. “Unspecified / other” is NHTSA’s own catch-all category — we show it rather than hide it.
NHTSA campaign 18V456000 · 2018 · reported 07/10/2018
If the beltline trim were to separate from the vehicle while driving, it could become a road hazard, increasing the risk of a crash. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
NHTSA campaign 19V787000 · 2019 · reported 11/01/2019
An inaccurate vehicle location may delay emergency responders, increasing the risk of injury. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: YES
NHTSA campaign 18V850000 · 2018 · reported 11/29/2018
A car that cannot be properly steered has an increased risk of a crash. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
NHTSA campaign 21V197000 · 2021 · reported 03/19/2021
The adhesive bonding of the front panel might deteriorate, possibly causing the front panel to detach from the vehicle and become a road hazard, increasing the risk of a crash. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
NHTSA campaign 19V130000 · 2019 · reported 02/26/2019
If the seatback does not properly lock, in the event of a crash, the seatbacks may fold forward, increasing the risk of injury. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
NHTSA campaign 21V072000 · 2021 · reported 02/12/2021
A disabled eCall system would prevent a vehicle occupant from contacting emergency services through the call center in an emergency, potentially delaying emergency responders and increasing the risk of injury. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
NHTSA campaign 21V058000 · 2021 · reported 02/05/2021
Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: YES
NHTSA campaign 21V032000 · 2021 · reported 01/29/2021
If the seat belt does not fully retract, the occupant may find the operation of the seat belt inconvenient and not wear it, increasing the risk of injury in the event of a crash. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
NHTSA campaign 17V627000 · 2017 · reported 10/06/2017
If the driver air bag inadvertently deploys, it can increase the risk of injury and a crash. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
NHTSA campaign 17V114000 · 2017 · reported 02/23/2017
If the starting current limiter overheats, the surrounding components can melt, increasing the risk of a fire. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
NHTSA campaign 17V251000 · 2017 · reported 04/11/2017
If the front seat seatbelt pretensioners do not function properly, the seat occupants may not be adequately restrained in the event of a crash, increasing the risk of injury. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
NHTSA campaign 18V207000 · 2018 · reported 03/29/2018
If the seatback does not properly lock, in the event of a crash, the seatbacks may fold forward, increasing the risk of injury. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
NHTSA campaign 17V243000 · 2017 · reported 04/11/2017
A loss of electrical contact will cause the electric power steering assist to deactivate, increasing the risk of a crash. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
NHTSA campaign 22V365000 · 2022 · reported 05/20/2022
A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency responders and increasing the risk of injury. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: YES
NHTSA campaign 23V854000 · 2023 · reported 12/15/2023
A detached roof panel can become a road hazard, increasing the risk of a crash. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
Park it Park outside Specimen badges — shown on a recall card only when NHTSA sets the flag. None of the campaigns above carries either flag. Always check your own vehicle by VIN at nhtsa.gov/recalls.
“In my family we have 2 mercedes benz cars one 2017GLC300 and other 2017 C300 4matic and both of the cars have the same issues…”NHTSA complaint 11504121 — filed 01/28/2023 · ENGINE
“I purchased my 2017 C300 class Mercedes-Benz ("MB") in May 2021 from a used car dealership in Mobile, AL. At that time it had 36,000…”NHTSA complaint 11500998 — filed 01/10/2023 · ENGINE
“Hey good morning. Thereâs been a been a system failure. P052E Positive Crankcase Ventilation Regulator Valve Performance. Warning message I got was the engine light…”NHTSA complaint 11500059 — filed 01/04/2023 · ENGINE
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Engine issues are the most-reported category, cited in 76 of 214 NHTSA complaints (35.5%), followed by unspecified/other issues (33), electrical system (30), fuel/propulsion system (30). Complaints are unverified owner reports.
214 complaints were on file with NHTSA as of 07/14/2026. Of those, 10 involved a crash, 3 involved a fire, and 16 reported injuries. No deaths were reported.
Yes — 15 NHTSA safety recall campaigns, including campaign 18V456000. Recall repairs are free at authorized dealers. Check your specific vehicle by VIN at nhtsa.gov/recalls.
4 of the 6 most-reported complaint categories on this page are backed by an NHTSA safety recall or open investigation; the rest are unverified owner reports. A recall means a free repair is available at authorized dealers.
No. Complaints are reports submitted by consumers to NHTSA. NHTSA does not verify individual complaints, and a complaint is not proof that a defect exists.
