2009 Mercedes-Benz C300 Problems & Recalls
Built from official NHTSA complaint and recall data · data through 07/12/2026
Source: U.S. NHTSA complaint & recall data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
Is this problem acknowledged?
The most-reported problem — Electrical System (33.9% of complaints) — recall and investigation status for this vehicle is currently unavailable.
Electrical System complaints here are 3.1× the median for that category across the 2547 model-years tracked on this site.
| Complaint category | Reports | Official status | Reference |
|---|---|---|---|
| Electrical System | 195 · 33.9% | not available | — |
| Air Bags | 182 · 31.6% | not available | — |
| Steering | 135 · 23.4% | not available | — |
| Exterior Lighting | 113 · 19.6% | not available | — |
| Suspension | 35 · 6.1% | not available | — |
| Electronic Stability Control (ESC) | 20 · 3.5% | not available | — |
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.
Complaints by component
Percentages are the share of the 576 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.
Recalls
No NHTSA recall campaigns are on file for this vehicle. New recalls can be issued at any time — check your VIN at nhtsa.gov/recalls.
What owners report
“2009 MERCEDES BENZ C300 NEEDS REPLACEMENT OF THE ELECTRIC STEERING LOCK (CODE 6180.57-P-051521), NO WARNING LIGHTS APPEARED CAR WOULD NOT TURN ON.”NHTSA complaint 10619405 — filed 08/06/2014 · ELECTRICAL SYSTEM
“MY CAR WILL NOT START. BATTERY WAS TESTED AND IS IN GOOD CONDITION. WHEN KEY IS INSERTED THE PANEL SHOWS A MESSAGE SAYING "PLEASE REMOVE…”NHTSA complaint 10617351 — filed 07/29/2014 · ELECTRICAL SYSTEM
“I WENT OUT TO MY CAR THIS MORNING TO DRIVE TO WORK AND MY CAR WOULD NOT START. THE LIGHTS CAME ON I COULD LOCK…”NHTSA complaint 10610635 — filed 07/15/2014 · ELECTRICAL SYSTEM
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Complaint trend by year filed
Frequently asked questions
What are the most common problems with the 2009 Mercedes-Benz C300?
Electrical system issues are the most-reported category, cited in 195 of 576 NHTSA complaints (33.9%), followed by air bags (182), steering (135), exterior lighting (113). Complaints are unverified owner reports.
How many complaints does the 2009 Mercedes-Benz C300 have?
576 complaints were on file with NHTSA as of 07/12/2026. Of those, 14 involved a crash, 18 involved a fire, and 13 reported injuries. No deaths were reported.
Does the 2009 Mercedes-Benz C300 have any recalls?
No NHTSA recall campaigns are on file for this vehicle. New recalls can be issued at any time — check your VIN at nhtsa.gov/recalls.
Has NHTSA acted on the 2009 Mercedes-Benz C300's reported problems?
Recall or investigation data is partly unavailable for this vehicle right now — check your VIN at nhtsa.gov/recalls for the authoritative answer.
Is a complaint proof of a defect?
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.
