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2008 Mercedes-Benz C-Class C300 6MT

All Mercedes-Benz C-Class W204 trims (2008–2014) → All Mercedes-Benz C-Class generations →
2008 Mercedes-Benz C-Class – front Unverified
Photo: Mercedes-Benz W204 C 200 Kompressor Avantgarde Iridium Silver (2) by Damian B Oh, CC BY-SA 4.0, via Wikimedia Commons
Photos show the W204 (W204, 2008–2014); trim, color, and model year may differ.
All photo credits
  1. Photo: Mercedes-Benz W204 C 200 Kompressor Avantgarde Iridium Silver (2) by Damian B Oh, CC BY-SA 4.0, via Wikimedia Commons
  2. Photo: Mercedes-Benz W204 C 200 Kompressor Avantgarde Iridium Silver (3) by Damian B Oh, CC BY-SA 4.0, via Wikimedia Commons
  3. Photo: MERCEDES BENZ C-CLASS (W204) China (7) by Dinkun Chen, CC BY-SA 4.0, via Wikimedia Commons
  4. Photo: MERCEDES BENZ C-CLASS (W204) China (12) by Dinkun Chen, CC BY-SA 4.0, via Wikimedia Commons
  5. Photo: Mercedes-Benz C200LCDI aka W204 rear three quarters by Charles01, CC BY-SA 4.0, via Wikimedia Commons

The 2008 Mercedes-Benz C-Class C300 6MT is a 3.0-liter V6 with a 6-speed manual and rear-wheel drive. It is rated at 21 mpg combined.

EPA fuel-economy estimates are 18 mpg city and 26 mpg highway (21 mpg combined).

Spec Value
Vehicle
Body TypeSedan
PowertrainGas
Engine
Engine Type3.0L V6
Displacement3 L
Drivetrain
Drive TypeRear-Wheel Drive
Transmission
Transmission6-Speed Manual
Fuel Economy
City18 MPG
Highway26 MPG
Combined21 MPG
Recommended FuelPremium Unleaded

Safety & Recalls

NCAP safety ratings

Overall Not rated
Frontal crash Not rated
Frontal – driver ★★★★★
Frontal – passenger ★★★★★
Side crash Not rated
Rollover ★★★★★ (10.5 % risk)
Tested variant: 2008 Mercedes-Benz C-Class 4-DR. w/SAB

Recalls

No recalls on file with NHTSA for the 2008 Mercedes-Benz C-CLASS.

836 owner complaints to NHTSA for the 2008 Mercedes-Benz C-CLASS

Owner Complaints

836 owner complaints filed with NHTSA for the 2008 Mercedes-Benz C-CLASS (25 mention a crash, 21 a fire, 18 an injury). See all on nhtsa.gov

Most-cited areas
Air Bags324
Electrical System291
Steering169
Exterior Lighting149
Unknown Or Other44
Engine38
A complaint can cite more than one area.
Most recent complaints
Aug 19, 2025 · Service Brakes, Hydraulic Crash
“The contact owns a 2008 Mercedes-Benz C300. The contact stated that while depressing the brake pedal, attempting to stop, the vehicle failed to respond as intended and causing the contact to drive…”
Aug 1, 2025 · Electrical System, Exterior Lighting
“The contact owns a 2008 Mercedes-Benz C300. The contact stated while at the car wash and attempting to wash the vehicle, there was popping sound coming from the vehicle, and the contact saw smoke…”
Jul 27, 2025 · Service Brakes
“Certified Mercedes dealership confirmed that the subframe of my 2008 C300 is rusted and needs to be replaced which is under warranty. However, they are unwilling and do not acknowledge that the brake…”
Jul 23, 2025 · Electrical System
“The contact owns a 2008 Mercedes-Benz C300. The contact stated that upon turning off the vehicle, there was an abnormal clicking sound coming from the vehicle. There was no warning light illuminated…”
Jun 30, 2025 · Engine And Engine Cooling
“The contact owns a 2008 Mercedes-Benz C300. The contact stated while driving 45 MPH and depressing the accelerator pedal, the vehicle slowed down independently and lost automotive power. The contact…”

Complaints are unverified reports submitted to NHTSA by owners. They cover the whole model year, not a specific trim, and a count alone doesn't show how common a problem is.

Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 2008 MERCEDES-BENZ C-CLASS. US-market vehicles only; data cached for up to 7 days.

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