Total Complaints
39 filings
MERCEDES-BENZ S430 · model year
2003 MERCEDES-BENZ S430
39 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2003MERCEDES-BENZS430 carries 39 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 1 fire, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2003 S430 is electrical system with 11 filings, followed by suspension (4) and seat belts (3). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 15 investigation files overlapping the 2003 S430. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
39
Complaints
0
Crashes
1
Fires
0
Injuries
0
Deaths
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| ELECTRICAL SYSTEM | 11 |
| SUSPENSION | 4 |
| SEAT BELTS | 3 |
| ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL | 2 |
| ENGINE | 2 |
| EXTERIOR LIGHTING | 2 |
| POWER TRAIN | 2 |
| UNKNOWN OR OTHER | 2 |
| VEHICLE SPEED CONTROL | 1 |
| ELECTRICAL SYSTEM:12V/24V/48V BATTERY | 1 |
| EXTERIOR LIGHTING:HEADLIGHTS | 1 |
| EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC. | 1 |
| TIRES | 1 |
| STEERING | 1 |
| WHEELS | 1 |
Recent Complaints
20210628STRUCTURE:BODY:HATCHBACK/LIFTGATE
The contact owns a 2003 Mercedes-Benz S430. The contact stated he opened the hatch however, the hatch quickly closed independently. The contact stated he was able to hold the hatch before it closed totally. The contact stated that the passengerâs side spring was detached from the hatch. The contact stated he attempted but was unable to repair the passengerâs side spring. The contact called and made the local dealer aware of the failure. The vehicle was not diagnosed nor repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 93,268.
Mileage: 93,268
20190221AIR BAGS
SRS CODES IS BEING THROWN. IF YOU MOVE A LITTLE IN THE PASSENGER SEAT IT TRIGGERS CODE TO BE THROWN. STARTED THROWING IT OUT OF NOW WHERE.
Mileage: 178,789
20190221SEATS
SRS CODES IS BEING THROWN. IF YOU MOVE A LITTLE IN THE PASSENGER SEAT IT TRIGGERS CODE TO BE THROWN. STARTED THROWING IT OUT OF NOW WHERE.
Mileage: 178,789
20181129ELECTRICAL SYSTEM
ELECTRICAL/FUSE/CLUSTER PANEL LIGHTS ARE OUT IN DASH VEHICLE WAS STATIONARY
Mileage: 141,000
20180310ELECTRICAL SYSTEM
I HAVE A 2003 MERCEDES S430. THE OTHER DAY MY WIFE WAS GOING DOWN THE HIGHWAY AT 65 MPH WHEN IT JUST SHUT OFF IN THE MIDDLE OF THE ROAD. THIS IS VERY DANGEROUS. HOW DO WE ALLOW A VEHICLE TO OPERATE ON THE HIGHWAY THAT WOULD JUST CUT OFF IN THE MIDDLE OF THE ROAD WITHOUT AT LEAST GIVING YOU A CHANCE TO GET OUT OF THE ROAD. THANKS
Mileage: 90,000
20180310ENGINE
I HAVE A 2003 MERCEDES S430. THE OTHER DAY MY WIFE WAS GOING DOWN THE HIGHWAY AT 65 MPH WHEN IT JUST SHUT OFF IN THE MIDDLE OF THE ROAD. THIS IS VERY DANGEROUS. HOW DO WE ALLOW A VEHICLE TO OPERATE ON THE HIGHWAY THAT WOULD JUST CUT OFF IN THE MIDDLE OF THE ROAD WITHOUT AT LEAST GIVING YOU A CHANCE TO GET OUT OF THE ROAD. THANKS
Mileage: 90,000
20180310UNKNOWN OR OTHER
I HAVE A 2003 MERCEDES S430. THE OTHER DAY MY WIFE WAS GOING DOWN THE HIGHWAY AT 65 MPH WHEN IT JUST SHUT OFF IN THE MIDDLE OF THE ROAD. THIS IS VERY DANGEROUS. HOW DO WE ALLOW A VEHICLE TO OPERATE ON THE HIGHWAY THAT WOULD JUST CUT OFF IN THE MIDDLE OF THE ROAD WITHOUT AT LEAST GIVING YOU A CHANCE TO GET OUT OF THE ROAD. THANKS
Mileage: 90,000
20180128EXTERIOR LIGHTING
INSTRUMENT CLUSTER WENT BLANK NOTHING WORKS IN CLUSTER.DRIVINGHOUR OR TWO WENT BLANK NO REASON
Mileage: 158,000
20170118SUSPENSION
THE SUSPENSION ON MY 2003 S 430 4-MATIC IS STATING STOP, TOO CLOSE. IT WILL NOT LIFT UP. IS THIS A RECALL ISSUE? PLEASE CONTACT ME AT [XXX]. THANK YOU [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
20160823ELECTRICAL SYSTEM
WHILE DRIVING GETTING READY TO ENTER THE HIGHWAY MY 2003 MERCEDES S430 INSTRUMENT PANEL WENT OUT. THE GAUGES GOT STUCK ON WHAT THEY WERE WHILE DRIVING. I WASN'T ABLE TO SEE ANYTHING ON THE PANEL. I TOOK IT TO THE NEAREST SHOP AND THEY CHANGED THE FUSE, HOWEVER THE FUSE BLEW RIGHT BACK OUT EACH TIME THEY CHANGED IT. THE CAR WAS STILL DRIVABLE. I HAVEN'T HAD THIS CAR FOR 1 YEAR YET AND I AM LOST AT WHAT TO DO. THE SHOP SAID THE INSTRUMENT CHAISE WILL WORK BUT SOMETHING IS BLEWING THE FUSE. I WAS ALSO TOLD THAT THE ALUMINATOR IN THE INSTRUMENT PANEL IS FAULTY AND NEEDS TO BE REPLACED. ANY HELP WITH THIS ISSUE IS HELPFUL.. PLEASE HELP AS THIS CAR HAS BECOME A NIGHTMARE (INSTRUMENT PANEL, DOORS DON'T LOCK, PASSENDER SEAT MOVES AT WIERD TIMES, AND THE AIR STRUT BUSTED) INSTEAD OF A GOOD DREAM. I HAVE READ A NUMBER OF ISSUES WITH THE INSTRUMENT PANEL FAILURE IN THESE CARS. I WISH I WOULD OF SEEN THIS BEFORE I PURCHASED IT. MERCEDES NEEDS TO COVER THE COST IN FIXING THIS ISSUE.
Mileage: 121,000
20160806POWER TRAIN
HEATER AND AIR CONDITIONER FAN MOTOR FAILED ON MY 2003 S430. WHICH IS DANGEROUS IN SEASONAL CLIMATE CONDITIONS I'VE HAD TO REPLACE THIS PART 2X AT 700.00 ON BOTH OCCURANCES AT MY OWN EXPENSE WHICH I DONT UNDERSTAND WHEN THERE IS A RECALL FOR THIS SAME ISSUE FOR PREVIOUS YEARS 2000,2001.. RECALL#2004 070010. I'VE ALSO HAD TO CHANGE MY SHIFTER GEAR BOX WHICH JAMS IN THE PARK POSITION AND DOESN'T ALLOW YOU TO DRIVE THE VECHICLE THIS IS CAUSED BY A PLASTIC PIECE THAT IS SUSCEPTIBLE TO BREAK WITHIN THE GEAR BOX THIS ISSUE IS ALSO EXPENSIVE FOR JUST 1 FAULTY TRANS SHIFTER PIECE THAT CAN TOTALLY LEAVE YOUR CAR INOPERABLE.
20160806SUSPENSION
HEATER AND AIR CONDITIONER FAN MOTOR FAILED ON MY 2003 S430. WHICH IS DANGEROUS IN SEASONAL CLIMATE CONDITIONS I'VE HAD TO REPLACE THIS PART 2X AT 700.00 ON BOTH OCCURANCES AT MY OWN EXPENSE WHICH I DONT UNDERSTAND WHEN THERE IS A RECALL FOR THIS SAME ISSUE FOR PREVIOUS YEARS 2000,2001.. RECALL#2004 070010. I'VE ALSO HAD TO CHANGE MY SHIFTER GEAR BOX WHICH JAMS IN THE PARK POSITION AND DOESN'T ALLOW YOU TO DRIVE THE VECHICLE THIS IS CAUSED BY A PLASTIC PIECE THAT IS SUSCEPTIBLE TO BREAK WITHIN THE GEAR BOX THIS ISSUE IS ALSO EXPENSIVE FOR JUST 1 FAULTY TRANS SHIFTER PIECE THAT CAN TOTALLY LEAVE YOUR CAR INOPERABLE.
20160806UNKNOWN OR OTHER
HEATER AND AIR CONDITIONER FAN MOTOR FAILED ON MY 2003 S430. WHICH IS DANGEROUS IN SEASONAL CLIMATE CONDITIONS I'VE HAD TO REPLACE THIS PART 2X AT 700.00 ON BOTH OCCURANCES AT MY OWN EXPENSE WHICH I DONT UNDERSTAND WHEN THERE IS A RECALL FOR THIS SAME ISSUE FOR PREVIOUS YEARS 2000,2001.. RECALL#2004 070010. I'VE ALSO HAD TO CHANGE MY SHIFTER GEAR BOX WHICH JAMS IN THE PARK POSITION AND DOESN'T ALLOW YOU TO DRIVE THE VECHICLE THIS IS CAUSED BY A PLASTIC PIECE THAT IS SUSCEPTIBLE TO BREAK WITHIN THE GEAR BOX THIS ISSUE IS ALSO EXPENSIVE FOR JUST 1 FAULTY TRANS SHIFTER PIECE THAT CAN TOTALLY LEAVE YOUR CAR INOPERABLE.
20151021ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
TL* THE CONTACT OWNS A 2003 MERCEDES BENZ S430. WHILE ATTEMPTING TO TURN THE KEY TO THE ON POSITION, THE INSTRUMENT PANEL BECAME INOPERABLE. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DIAGNOSED THAT THE INSTRUMENT CLUSTER FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 06V028000 (INTERIOR LIGHTING). THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 81,563.
Mileage: 81,563
20150702POWER TRAIN
TL* THE CONTACT OWNS A 2003 MERCEDES BENZ S430. THE CONTACT STATED THAT THE GEAR SHIFTER SEIZED AND WAS UNABLE TO MOVE TO ANOTHER GEAR. THE CONTACT HAD TO PULL AND JERK THE SHIFTER IN ORDER FOR IT TO MOVE INTO ANOTHER GEAR. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE GEAR SHIFTER NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 58,000.
Mileage: 58,000
20150509ELECTRICAL SYSTEM
INSTRUMENT CLUSTER FLICKER WHEN STOPPED AT LIGHT.
Mileage: 122,000
20150509EXTERIOR LIGHTING
INSTRUMENT CLUSTER FLICKER WHEN STOPPED AT LIGHT.
Mileage: 122,000
20140827ELECTRICAL SYSTEM
STARTED VEHICLE IN MY DRIVEWAY, SHIFTED INTO DRIVE AND INSTRUMENT CLUSTER GOES DARK. NO POWER MIRRORS, SEATS, NO RADIO, NO AIR. *TR
Mileage: 120,000
20140827ELECTRICAL SYSTEM
STARTED CAR IN MY DRIVEWAY, DASH GOES DARK. NO POWER WINDOWS, LOCKS, RADIO, AIR, SEATS. *TR
Mileage: 120,000
20130506STEERING
I WAS ON THE FREEWAY WHEN THE VEHICLE LOST COMPLETE CONTROL SPINNING OUT OF CONTROL. HAPPENED 3 TIMES. TIRES MICHELIN WITH 30000 MILES ON TIRE BUT STILL WITHIN TREAD GUIDELINES. *TR
Mileage: 120,000
Compare 2003MERCEDES-BENZS430 to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 2003 MERCEDES-BENZ S430 have?▼
The 2003 MERCEDES-BENZ S430 has 39 NHTSA complaints, 0 crashes, 1 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 2003 MERCEDES-BENZ S430?▼
The most-complained component for the 2003 MERCEDES-BENZ S430 is ELECTRICAL SYSTEM with 11 complaints. Other frequently reported areas include SUSPENSION and SEAT BELTS.
Is the 2003 MERCEDES-BENZ S430 safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.