AFTER HAVING THE CHECK ENGINE LIGHT COME ON, WE TOOK THE CAR TO THE DEALERSHIP WE PURCHASED IT FROM TO PERFORM A DIAGNOSTIC AFTER RECEIVING CODES P0170 AND P0173 (MB CODES 2092/2096) WHICH MB CLASSIFIES AS "MIXTURE IN RIGHT / LEFT CYLINDER BANK IS TOO RICH WHEN IDLING" AND WERE TOLD WE WOULD NEED TO REPLACE THE INTAKE MANIFOLD FOR $2110. THE EXPLANATION WE RECEIVED (VERBAL ONLY AS THEY REFUSED TO…
2006 Mercedes-Benz C-Class engine problems
moderate 55 complaints filed with NHTSA · avg repair $3,100
Complaints
55
Recalls
0
Crashes
2
Avg fix
$3,100
What owners are reporting 5 most recent
THE VEHICLE WAS BEING DRIVEN ON INTERSTATE 95 IN POMPANO BEACH FLORIDA, THE CAR STARTED TO RUN ROUGH AND THE CHECK ENGINE LIGHT BECAME ILLUMINATED. TOOK THE CAR TO THE REPAIR SHOP AND IT CAME UP WITH 2 CODES 1200 AND 1208 INTAKE AND EXHAUST CAMSHAFT SENSOR RIGHT CYLINDER, THE MECHANICS REPLACED THE 2 SENSORS AND A COUPLE WEEKS LATER IT APPEARED AGAIN. THE ORIGINAL MECHANIC RECOMMENDED ANOTHER SH…
MY CHECK ENGINE LIGHT IS ON. I HAD IT LOOKED AT BY MY MECHANIC. HE CONFIRMED THAT IT IS THE BALANCE SHAFT. THIS NEEDS TO BE REPLACED. I RESEARCHED THIS PROBLEM AND FOUND MANY MERCEDES 230 MODELS HAVE THIS MANUFACTURER'S PROBLEM BECAUSE THE PIECE WAS CHEAPLY MADE. THIS IS A PROBLEM WITH YOUR MERCEDES C230 2006 AND 2007 MODELS. IN 2008 C230 MODEL THIS WAS REPLACED WITH A QUALITY BALANCE SHAFT PIEC…
TO WHOM IT MAY CONCERN. I HAVE THE MB C230 2006. I'VE BEEN LOSING POWER WHILE DRIVING. WHILE THE CAR IDLES IT'S RUNNING AS IF IT'S MISSING LIKE OUT OF TIMING. I'VE BEEN TO THE PARTS DEPT BECAUSE I WAS TOLD THE VEHICLE WAS MISSING. I HAD THE COILS CHANGED. SPARK PLUGS CHANGED, YET STILL THE CAR HAS NO POWER AND WHEN IDLING THE ENGINE RUNS SO VIOLENT IT'S CAUSING THE BELT TO WEAR. SO FAR I HAD TO BU…
TOOK OUR DAUGHTER'S 2006, C230 MERCEDES BENZ TO OUR MERCEDES CERTIFIED MECHANIC TO REPAIR A SLUGGISH PROBLEM THAT CAUSED THE CHECK ENGINE LIGHT TO COME ON.. I WAS INFORMED THAT A PART IN THE ENGINE CALLED THE BALANCER WAS GOING BAD... THE COST IS AN APPROX $5000.00. AND THAT WE WOULD HAVE TO TAKE IT TO THE LOCAL MERCEDES DEALERSHIP TO DO THE REPAIR. THE PART INSTALLED IN THE 2006 AND 2007 MODE…
Common questions
How serious is the engine problem on the 2006 Mercedes-Benz C-Class?
It's a documented issue but not catastrophic. 55 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
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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