2004 Mercedes-Benz S430 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 2004 Mercedes-Benz S430, 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
- Electrical726.9%
- Suspension415.4%
- Powertrain (other)311.5%
- Driver assistance27.7%
- Body & structure27.7%
- Exterior lighting13.8%
- Steering13.8%
- Transmission13.8%
- Visibility13.8%
- Brakes13.8%
- Engine13.8%
- Fuel system13.8%
- Interior & seats13.8%
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
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
The contact owns a 2004 Mercedes-Benz S430. The contact stated that the electric conductor from the blower motor to the fuse holder overheated and melted the fuse. There were no warning lights illuminated. The vehicle was not diagnosed or repaired. The VIN was not included in NHTSA Campaign Number: 04V227000 (Electrical System). The manufacturer was not notified of the failure. The failure mileage was 78,000.
TL* THE CONTACT OWNS A 2004 MERCEDES-BENZ S430. WHILE STARTING THE VEHICLE, THE INSTRUMENT CLUSTER DID NOT ILLUMINATE AND THE SCREEN WAS DARK. THE LOCAL DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOTIFIED AND INFORMED THE CONTACT THAT THE VIN WAS NOT INCLUDED IN A RECALL. THE FAILURE MILEAGE WAS 175,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
WHILE DRIVING AIRMATIC STRUT SNAPPED HIM HALF ON THE FREEWAY. WHOLE CAR DROPPED AND HAD TO TOW VEHICLE TO SHOP. REPLACED THE AIRMATIC STRUT AND NOW ABS SENSOR CAME ON AND DOESNT GO AWAY. REPLACED SENSOR AND STILL WONT GO AWAY SO NOW I LOST CRUISE CONTROL, BRAKES WEIRD, AND LOST ESP CONTROL WITH HEAVY STEERING. COMMON ISSUE ON THIS VEHICLE WITH THE AIRMATIC SUSPENSION.
THIS VEHICLE OFTEN DROPS LOWER, WHILE IN MOTION. THIS IS HAZARDOUS! I HAVE HAD THIS AIRMATIC AIR SUSPENSION SYSTEM REPAIRED THREE TIMES ON THIS VEHICLE WITHIN THE LAST THREE YEARS, AND IT APPEARS THIS IS ONE PROBLEM THAT MERCEDES BENZ REFUSES TO CORRECT. IN MY LAST S430, I HAD THE SAME ISSUE, AND HAD TO PAY HUGE AMOUNTS TO FIX THE PROBLEMS. I FEEL NO ONE IS DOING ANYTHING TO GET MERCEDES BENZ TO FIX THIS ONGOING SAFETY ISSUE. I WILL LIKE NHTSA TO GET MERCEDES BENZ TO TAKE RESPONSIBILITY FOR THESE ONGOING DEFECTS.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
CAR STUCK ON PARK, WONT RELEASE GEAR DUE TO FAULTY PLASTIC SAFETY FEATURE THAT CRACKS OVER TIME DUE TO INFERIOR MATERIAL. HAVE TO REPLACE WHOLE GEAR BOX OR REMOVE SAFETY PIN WHICH CAN CAUSE AN ACCIDENT SINCE LEVER WILL SHIFT WHITOUT PRESSING BRAKE OR IGNITION ON.
TL* THE CONTACT OWNS A 2004 MERCEDES BENZ S430. THE CONTACT STATED THAT THE VEHICLE JERKED WHILE CHANGING GEARS. THE VEHICLE WOULD ALSO UNEXPECTEDLY ACCELERATE AND DECELERATE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER AND THE CONTACT WAS INFORMED THAT THE FAILURE WAS DUE TO A SOFTWARE MALFUNCTION WITHIN THE VALVE BODY OF THE TRANSMISSION. THE FAILURE OCCURRED AT VARIOUS SPEEDS. THE VEHICLE WAS NOT REPAIRED. THE FAILURE CONTINUED TO OCCUR AND THE CHECK ENGINE LIGHT BEGAN TO ILLUMINATE ON THE INSTRUMENT PANEL. THE VEHICLE WAS THEN TAKEN TO AN INDEPENDENT REPAIR SHOP AND THE SOFTWARE WAS REPAIRED. THE FAILURE EVENTUALLY RECURRED. THE VEHICLE WAS NOT TAKEN BACK FOR ADDITIONAL REPAIRS. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND OFFERED NO ASSISTANCE. THE FAILURE MILEAGE WAS 28,000. THE VIN WAS UNAVAILABLE.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
WHILE DRIVING AIRMATIC STRUT SNAPPED HIM HALF ON THE FREEWAY. WHOLE CAR DROPPED AND HAD TO TOW VEHICLE TO SHOP. REPLACED THE AIRMATIC STRUT AND NOW ABS SENSOR CAME ON AND DOESNT GO AWAY. REPLACED SENSOR AND STILL WONT GO AWAY SO NOW I LOST CRUISE CONTROL, BRAKES WEIRD, AND LOST ESP CONTROL WITH HEAVY STEERING. COMMON ISSUE ON THIS VEHICLE WITH THE AIRMATIC SUSPENSION.
WHILE CHANGING GEARS FROM 1ST TO 2ND GEAR VEHICLE SHIFTED HARSHLY AND ENTERED INTO A LIMP MODE. ONCE AT A CERTIFIED MECHANIC THE PROBLEM WAS DISCOVERED TO BE A CONDUCTOR PLATE AND VALVE BODY WHICH HAS BEEN DISCOVERED TO BE DEFECTIVE ON MOST VEHICLES WITH 6 SPEED TRANSMISSION AND NEEDS TO BE REPLACED. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
I PURCHASED A CERTIFIED PRE-OWNED 2004 MERCEDES BENZ S430-4MATIC IN MARCH 2007, AFTER RETIRING. I ALSO BROUGHT AN EXTENDED WARRANTY COSTING OVER $3000 DOLLARS. I HAVE RETURNED THIS VEHICLE TO A MERCEDES BENZ DEALERSHIP FOR REPAIRS OVER APPROXIMATELY 27 TIMES SINCE PURCHASING THE VEHICLE. THE PROBLEMS INCLUDE THE ELECTRICAL SYSTEM (DOOR LOCKS); TRUNK LID LOCK, SUSPENSION SYSTEM, TIRE PRESSURE SENSORS, ENGINE AND ENGINE COOLING SYSTEM (AIR CONDITIONING SYSTEM WILL ONLY DISPENSE COLD AIR AT 55 DEGREES AND LOWER) AND MOST RECENTLY THE RADIO AND NAVIGATION SYSTEM ARE FAILING. NOW THAT THE WARRANTIES ON THE VEHICLE HAVE EXPIRED THE DEALERSHIP WILL NOT REPAIR THE ABOVE PROBLEMS UNDER WARRANTY. I FILED A COMPLAINT WITH MERCEDES BENZ USA AND I'M WAITING FOR A DECISION REGARDING THE REPAIRS TOTALING OVER $4700.00. *TR
TL*THE CONTACT OWNS A 2004 MERCEDES BENZ S430. THE DEALER STATED THAT RAIN WATER HAS BEEN LEAKING INTO THE FRONT OF THE VEHICLE, WHICH CAUSED ELECTRICAL AND COMPUTER FAILURES. A LEAK IS PRESENT UNDERNEATH THE HOOD AND WATER IS ACCUMULATING NEAR THE FLOOR MAT. THE DEALER AND MANUFACTURER STATED THAT THE CONTACT WOULD BE RESPONSIBLE FOR THE REPAIRS. THE CURRENT AND FAILURE MILEAGES WERE 60,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2004 MERCEDES-BENZ S430. DUE TO INADEQUATE ILLUMINATION OF THE INSTRUMENT CLUSTER, THE CONTACT WAS NOT ABLE TO READ THE GAUGES AND INDICATORS. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE FUSE WAS REPLACED FOR THE GAUGES, BUT THE INSTRUMENT CLUSTER STILL WAS NOT ILLUMINATED. THE VEHICLE WAS NOT TAKEN TO A DEALER FOR DIAGNOSTIC TESTING OR REPAIRS. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 188,872.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
I PURCHASED A CERTIFIED PRE-OWNED 2004 MERCEDES BENZ S430-4MATIC IN MARCH 2007, AFTER RETIRING. I ALSO BROUGHT AN EXTENDED WARRANTY COSTING OVER $3000 DOLLARS. I HAVE RETURNED THIS VEHICLE TO A MERCEDES BENZ DEALERSHIP FOR REPAIRS OVER APPROXIMATELY 27 TIMES SINCE PURCHASING THE VEHICLE. THE PROBLEMS INCLUDE THE ELECTRICAL SYSTEM (DOOR LOCKS); TRUNK LID LOCK, SUSPENSION SYSTEM, TIRE PRESSURE SENSORS, ENGINE AND ENGINE COOLING SYSTEM (AIR CONDITIONING SYSTEM WILL ONLY DISPENSE COLD AIR AT 55 DEGREES AND LOWER) AND MOST RECENTLY THE RADIO AND NAVIGATION SYSTEM ARE FAILING. NOW THAT THE WARRANTIES ON THE VEHICLE HAVE EXPIRED THE DEALERSHIP WILL NOT REPAIR THE ABOVE PROBLEMS UNDER WARRANTY. I FILED A COMPLAINT WITH MERCEDES BENZ USA AND I'M WAITING FOR A DECISION REGARDING THE REPAIRS TOTALING OVER $4700.00. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Transmission
Reports naming the automatic or manual transmission, including shifting behaviour, shudder, slipping and transmission control modules.
From owner reports, verbatim
TRANSMISSION VALVE BODY NEED REPLACEMENT AFTER ENTIRE TRANSMISSION WAS REPLACED @ 50,000 MILES. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
THE OUTSIDE RIGHT HAND MIRROR HAS DISCOLORED MAKING IT DIFFICULT TO SEE TO CARS IN BACK. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
CAR STUCK ON PARK, WONT RELEASE GEAR DUE TO FAULTY PLASTIC SAFETY FEATURE THAT CRACKS OVER TIME DUE TO INFERIOR MATERIAL. HAVE TO REPLACE WHOLE GEAR BOX OR REMOVE SAFETY PIN WHICH CAN CAUSE AN ACCIDENT SINCE LEVER WILL SHIFT WHITOUT PRESSING BRAKE OR IGNITION ON.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
CAR STUCK ON PARK, WONT RELEASE GEAR DUE TO FAULTY PLASTIC SAFETY FEATURE THAT CRACKS OVER TIME DUE TO INFERIOR MATERIAL. HAVE TO REPLACE WHOLE GEAR BOX OR REMOVE SAFETY PIN WHICH CAN CAUSE AN ACCIDENT SINCE LEVER WILL SHIFT WHITOUT PRESSING BRAKE OR IGNITION ON.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
WHILE CHANGING GEARS FROM 1ST TO 2ND GEAR VEHICLE SHIFTED HARSHLY AND ENTERED INTO A LIMP MODE. ONCE AT A CERTIFIED MECHANIC THE PROBLEM WAS DISCOVERED TO BE A CONDUCTOR PLATE AND VALVE BODY WHICH HAS BEEN DISCOVERED TO BE DEFECTIVE ON MOST VEHICLES WITH 6 SPEED TRANSMISSION AND NEEDS TO BE REPLACED. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2004 MERCEDES BENZ S430. THE CONTACT STATED THAT AN ABNORMAL NOISE EMITTED FROM THE TRUNK OF THE VEHICLE AND THE LID FAILED TO LATCH SECURELY. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DISCOVERED THAT NHTSA CAMPAIGN NUMBER: 04V285000 (LATCHES/LOCKS/LINKAGES) WAS RELATED TO THE FAILURE BUT THE VIN WAS NOT INCLUDED IN THE RECALL. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS UNAVAILABLE.
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 .