2006 Mercedes-Benz S55 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2006 Mercedes-Benz S55, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Engine266.7%
- Electrical133.3%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
CRANK PULLEY/HARMONIC BALANCER WAS REPLACED AND STILL HAVE VERY BAD DANGEROUS VIBRATION ALL THE TIME
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.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
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.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .