2004 Mercedes-Benz S Class Seat belts Problems
- Complaints
- 1about this part
- Share
- 7%of 15 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the seat belts of the 2004 Mercedes-Benz S Class, 7% of the 15 complaints for this model year.
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 had to replace two cable harnesses for seat belt in both front seat. Connectors are being replaced in every S Class due to more than frequent failure. Mechanic has informed me that these connectors by not operating will cause safety restraint and airbags to not deploy in accident. Consequently had to replace right front passenger child restraint sensor in a 2004 s500 mercedes 4matic due to failure also. Both items as described are constantly being replaced in s-class vehicles due to failure. Luckily I did not have an accident to find out the airbag system would not activate in a crash.”
NHTSA complaint #10324960, filed 2010-04Seat belts: other model years
Other parts of the 2004 Mercedes-Benz S Class
3 complaintsTransmission and drivetrain
3 complaintsAir bags
2 complaintsSuspension
2 complaintsBrakes
1 complaintsSteering
1 complaintsBody and structure
1 complaintsTires
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaintsWheels
1 complaints
← All problems reported for the 2004 Mercedes-Benz S Class
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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