2003 Mercedes-Benz S430 Other or unknown Problems
- Complaints
- 2about this part
- Share
- 8%of 26 total for the year
- Median mileage
- 90,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the other or unknown of the 2003 Mercedes-Benz S430, 8% of the 26 complaints for this model year. Where a mileage was given, the median is 90,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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”
NHTSA complaint #11078449, filed 2018-03, 90,000 miles“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. …”
NHTSA complaint #10893718, filed 2016-08Other or unknown: other model years
Other parts of the 2003 Mercedes-Benz S430
12 complaintsSuspension
4 complaintsExterior lighting
3 complaintsSeat belts
3 complaintsEngine
2 complaintsTransmission and drivetrain
2 complaintsAir bags
1 complaintsElectronic stability control
1 complaintsEquipment
1 complaintsSeats
1 complaintsSteering
1 complaintsBody and structure
1 complaints
← All problems reported for the 2003 Mercedes-Benz S430
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology