2010 Mercedes-Benz C300 — Full Specifications
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The 2010 Mercedes-Benz C300 is a saloon/sedan offered with 2 engines (3L 6-cyl, 3.5L 6-cyl). Its most fuel-efficient configuration returns around 25 mpg (UK) / 21 mpg (US EPA) combined, with 24–25 mpg (UK) across all configurations. Owners often keep a Mercedes-Benz C300 workshop manual to hand for servicing and repairs.
Full Specifications
| Engine (most efficient) | 3L 6-cyl |
|---|---|
| Engine options | 3L 6-cyl · 3.5L 6-cyl |
| Transmission (most efficient) | Automatic 7-spd |
| Fuel Type | Premium Gasoline |
| Powertrain | Conventional |
| Drive | Rear-Wheel Drive |
| Body Style | Saloon/Sedan |
| Passenger Volume (EPA) | 88 cu ft (2,492 L) |
| Luggage Volume (EPA) | 12 cu ft (340 L) |
| Fuel Economy (UK) | 25 combined / 22 urban / 31 extra-urban mpg |
| Fuel Economy (US EPA) | 21 combined / 18 city / 26 highway mpg |
| CO₂ Emissions | 263 g/km |
| EPA Est. Annual Fuel Cost | $3,900 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 5 configurations for the 2010 Mercedes-Benz C300 across 2 engines (3L 6-cyl, 3.5L 6-cyl). Combined fuel economy ranges from 20 to 21 mpg (US), or 24 to 25 mpg (UK), depending on engine, transmission and drive. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 3L 6-cyl | Automatic 7-spd | 4-Wheel Drive | 24 | 20 (18/25) | 276 | $4,100 |
| 3L 6-cyl | Automatic 7-spd | Rear-Wheel Drive | 25 | 21 (18/26) | 263 | $3,900 |
| 3L 6-cyl | Manual 6-spd | Rear-Wheel Drive | 25 | 21 (18/26) | 263 | $3,900 |
| 3.5L 6-cyl | Automatic 7-spd | 4-Wheel Drive | 24 | 20 (17/24) | 276 | $4,100 |
| 3.5L 6-cyl | Automatic 7-spd | Rear-Wheel Drive | 25 | 21 (18/26) | 263 | $3,900 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 88 cubic feet (about 2,492 litres) and luggage volume at 12 cubic feet (about 340 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2010 Mercedes-Benz C300
Running Costs: 2010 Mercedes-Benz C300
Covering around 8,000 miles a year in a 2010 Mercedes-Benz C300 at 25 mpg combined, expect roughly 1,455 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $3,900 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Only need this car occasionally? See our buy vs rent comparison.
2010 Mercedes-Benz C300 Safety Ratings (NHTSA)
No NHTSA crash-test rating is on record for this model year. The NHTSA rates only a subset of vehicles each year; you can browse every rated vehicle on our NHTSA Safety Ratings hub.
Recalls & Owner Complaints (NHTSA)
NHTSA lists no safety recall campaigns for the 2010 Mercedes-Benz C300 as of 6 October 2026. Recalls can be issued years after a model is sold, so it is still worth checking your own VIN.
Owners have filed 476 complaints with NHTSA about the 2010 Mercedes-Benz C300. The most-reported areas are Air bags (213), Electrical system (87), Steering (73). Complaints include 20 reported crashes, 5 reported fires, 20 reported injuries. That is well above the median of 130 complaints across the 17 Mercedes-Benz C300 model years in our data.
Used-buyer checklist for the 2010 Mercedes-Benz C300
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Air bags (213 owner complaints) — Confirm any air bag inflator or module recalls were completed — enter the VIN at nhtsa.gov/recalls.
- Electrical system (87 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Steering (73 owner complaints) — Check for play, noise or heavy steering, and ask whether any steering recall work was done.
- Lighting (50 owner complaints) — Check every exterior light works and look for moisture inside the lamp housings.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
At 25 mpg (UK) combined it sits close to the 26 mpg average for Mercedes-Benz models in our database.
Of the 17 Mercedes-Benz C300 model years we cover, the 2010 ranks 15th for combined fuel economy on its best configuration (25 mpg UK combined, against a high of 36 mpg). See every Mercedes-Benz C300 year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2010 Mercedes-Benz C300
Frequently Asked Questions
What engine does the 2010 Mercedes-Benz C300 have?
EPA lists 2 engines for the 2010 Mercedes-Benz C300: 3L 6-cyl, 3.5L 6-cyl. The most fuel-efficient configuration pairs the 3L 6-cyl with a automatic 7-spd.
What is the fuel economy of the 2010 Mercedes-Benz C300?
The most efficient configuration returns around 25 mpg (UK) combined, or 21 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 24 to 25 mpg.
How much does the 2010 Mercedes-Benz C300 cost to fuel per year?
The US EPA estimates about $3,900 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Does the 2010 Mercedes-Benz C300 have any recalls?
NHTSA lists no safety recall campaigns for the 2010 Mercedes-Benz C300 as of 6 October 2026. Recalls can be issued years after a model is sold, so it is still worth checking your own VIN.
What are the most common problems reported for the 2010 Mercedes-Benz C300?
Among the 476 owner complaints filed with NHTSA, the most-reported areas are Air bags (213 complaints), Electrical system (87 complaints), Steering (73 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
How much interior and luggage space does the 2010 Mercedes-Benz C300 have?
EPA measures interior passenger volume at 88 cubic feet (about 2,492 litres) and luggage volume at 12 cubic feet (about 340 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.