IllustrationCRANK PULLEY/HARMONIC BALANCER WAS REPLACED AND STILL HAVE VERY BAD DANGEROUS VIBRATION ALL THE TIME
2006 Mercedes Benz S55
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all S55 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 1 of 2 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Engine. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
What owners actually said
2 reportsALL ELECTRICAL WENT OUT, IN MOTION ON CITY STREET, THEN PULLED OVER. HAD KEY IN MY POCKET. ENGINE STAYED RUNNING AND COULD NOT TURN OFF WITH BUTTON OR BY KEY. GOT OUT OF OF CAR, CLOSED DOOR AND COULD NOT GET BACK IN ANY DOOR EVEN THOUGH DRIVER DOOR WAS NOT LOCKED (BUTTON UP). ENGINE CONTINUED TO RUN UNTIL COOLANT EXPANSION TANK …
Read full complaint
ALL ELECTRICAL WENT OUT, IN MOTION ON CITY STREET, THEN PULLED OVER. HAD KEY IN MY POCKET. ENGINE STAYED RUNNING AND COULD NOT TURN OFF WITH BUTTON OR BY KEY. GOT OUT OF OF CAR, CLOSED DOOR AND COULD NOT GET BACK IN ANY DOOR EVEN THOUGH DRIVER DOOR WAS NOT LOCKED (BUTTON UP). ENGINE CONTINUED TO RUN UNTIL COOLANT EXPANSION TANK EXPLODED. IF CHILD WOULD HAVE BEEN IN BACK, WOULD HAVE HAD TO BRAKE WINDOW TO GET IN. THIS IS A BIG SAFETY ISSUE WHEN SO MANY OPTIONS DEPEND ON CAR'S ELECTRICAL WORKING. MERCEDES SAIL ELECTRICAL SYSTEM FAILED CAUSING OVER $15,000 IN DAMAGE CAUSE I WAS UNABLE TO CUT ENGINE OFF. I HAVE SOLD THE CAR, BUT BELIEVE IT'S IMPORTANT TO HAVE SUCH A SAFETY ISSUE INVESTIGATED.
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.