2009 Mercedes Benz C300 reliability record
Every consumer complaint and recall the U.S. government (NHTSA) has on file for the 2009 Mercedes Benz C300 — the repair risk behind the ownership cost.
- NHTSA complaints
- 846
- 116 in the last 5 years
- Top problem area
- ELECTRICAL SYSTEM
- 195 complaints
- Recalls on record
- 8
- see below
- Reported harm
- 22 reported crashes · 19 injuries · 30 fires
How this record compares
raw NHTSA counts, not defect ratesComplaint rank
#535
of 4,194 vehicle records
Vs Mercedes Benz median
+677
median 169 across 69 Mercedes Benz records
Vs 2007-2011
+587
median 260 complaints in 736 records
Top component share
23%
Electrical System: 195 complaints
What owners report fails — 2009 Mercedes Benz C300
- ELECTRICAL SYSTEM 195
- AIR BAGS 182
- STEERING 135
- EXTERIOR LIGHTING 113
- SUSPENSION 35
8 recalls on record for the 2009 Mercedes Benz C300
- NHTSA 22V168000 · 2022 · ENGINE AND ENGINE COOLING:ENGINE:ENGINE Various system failures, such as loss of drive power, reduced exterior lighting, or loss of dynamic control functions in
- NHTSA 16V363000 · 2018 · AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
- NHTSA 17V017000 · 2018 · AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
- NHTSA 18V043000 · 2018 · AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious in
- NHTSA 17V177000 · 2017 · ELECTRICAL SYSTEM:SOFTWARE If the air bags do not deploy as intended in the event of a crash, there would be an increased risk of injury in the eve
Estimate the 5-year cost to own a 2009 Mercedes Benz C300
A vehicle's complaint record hints at the repair and maintenance budget you'll need. Add your state, purchase price, and mileage to the TCO calculator for the full picture.
Open TCO calculatorThese are unverified consumer reports and manufacturer recalls filed with the National Highway Traffic Safety Administration — not validated defect rates, and not adjusted for how many 2009 Mercedes Benz C300 units were produced or sold. High-volume and older vehicles naturally accumulate more complaints. Use this as one research signal, not a verdict on any individual vehicle. Data as of 2026. Source: NHTSA Office of Defects Investigation (public domain).
Frequently asked questions
Is the 2009 Mercedes Benz C300 reliable?
NHTSA has 846 consumer complaints on record for the 2009 Mercedes Benz C300 and 8 recalls. The most-reported problem area is electrical system (195 reports). These are unverified consumer reports filed with the government, not validated failure rates, and are not adjusted for how many 2009 Mercedes Benz C300 units were produced — popular vehicles naturally accumulate more reports.
What are the most common problems with the 2009 Mercedes Benz C300?
Owners most often report problems with: electrical system (195), air bags (182), steering (135), exterior lighting (113). Each figure is the number of complaints filed with NHTSA for this exact model year.
How much does it cost to own a 2009 Mercedes Benz C300?
Ownership cost depends on your state taxes, insurance, fuel, and the maintenance the vehicle's reliability record implies. Use the CarOutlay 5-year TCO calculator to estimate the full cost including the repair risk this complaint record suggests.