ENGINE CHECK LIGHT CAME ON. NO APPARENT REASON. CAR DROVE OK BROUGHT TO MB DEALER. THEY RUN DIAGNOSTIC. NOTED THAT CYLINDER 3 MISFIRED AT SOME POINT, BUT EVERYTHING IS FINE NOW. CAR WAS IN WARRANTY THEN. AFTER SEVERAL MONTHS CHECK ENGINE LIGHT CAME ON AGAIN. CAR WAS RIDING ROUGH TEMPORARILY. THEN IT WAS OK AND THE LIGHT WENT OFF. LIGHT CAME ON AGAIN AROUND 35000 MILES. BROUGHT TO DEALER AG…
2011 Smart Fortwo engine problems
severe 3 complaints filed with NHTSA · avg repair $3,100
Complaints
3
Recalls
0
Crashes
0
Avg fix
$3,100
What owners are reporting 3 most recent
2011 SMART FORTWO COUPE. RUNNING ROUGH AND SHOWING CHECK ENGINE LIGHT WITH OBD CODE P0302. MERCEDES-BENZ DEALERSHIP FOUND MISFIRE ON CYLINDER #2. FURTHER INVESTIGATION FOUND CYLINDER #2 LEAKING 75%. REMOVED AND REPLACED CYLINDER HEAD WITH A NEW CYLINDER HEAD AS A "GOODWILL REPAIR." THIS PARTICULAR MERCEDES-BENZ DEALER HAS DONE 14 OF THESE REPAIRS TO DATE. THIS APPEARS TO BE A PROBLEM WITH A…
I WAS DRIVING EASTBOUND IN THE NUMBER 1 LANE OF CALIFORNIA HIGHWAY 24 ABOUT 1/4 MILE BEFORE THE TUNNEL ROAD EXIT. I HEARD A NOISE COMING FROM THE ENGINE ARE OF THE CAR, LOOKED AT THE INSTRUMENT CLUSTER AND NOTICED THAT THE ENGINE LIGHT HAD ILLUMINATED, AND EXPERIENCE A SUDDEN LOSS OF POWER. I PULLED OFF OF THE HIGHWAY AT THE TUNNEL ROAD EXIT AND STALLED ON THE OFF RAMP. I ATTEMPTED TO RESTART THE …
Common questions
How serious is the engine problem on the 2011 Smart Fortwo?
It's a meaningful issue. 3 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $3,100.
At what mileage does the engine typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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