2012 Mercedes-Benz E350 Seat belts Problems
- Complaints
- 4about this part
- Share
- 2%of 217 total for the year
- Median mileage
- 44,941miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the seat belts of the 2012 Mercedes-Benz E350, 2% of the 217 complaints for this model year. Where a mileage was given, the median is 44,941 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.
“Ln consumer stated seat belt suddenly failed to retract. Vehicle was repaired by a dealer but manufacterer declined to replace or reimburse the consumer.”
NHTSA complaint #11373766, filed 2020-11, 102,000 miles“Driver's side seatbelt stopped extending half-way out then would not retract. 28,882 miles on the car. Could not secure seatbelt to drive the vehicle.”
NHTSA complaint #10968252, filed 2017-03, 28,882 miles“The contact owns a 2012 mercedes benz e-350. The contact stated that the front driver and passenger side seat belts became inoperable while driving 35 MPH and above. The contact stated that the seat belt would continuously vibrate against his shoulder. The seat belt would vibrate so uncontrollably that the contact would have to tuck the belt under his arm to drive safely. The vehicle was taken to an authorized dealer three times, and they were unable to repair it. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 15. …”
NHTSA complaint #10434134, filed 2011-11, 15 milesRelated service bulletins
- 11032518Apr 25, 2026The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline for all dealer returns is no…
- 10151959Jul 23, 2018Seat belt extender toothed rack sluggish or makes noises
- 10167569Jul 10, 2013Switch for seat belt extender inoperative.
- 10053665Jul 10, 2013Xentry (mercedes): on some vehicles, the seat belt extender switch fails to operate. Model 207. No model years.
- 10044222Apr 20, 2012Mercedes benz: front or rear seat belt does not roll up correctly. Dirt deposits on the seat belt guide due to soiled seat belt. Also included models 169, f cell, 246, and 231…
- 10044220Apr 20, 2012Mercedes benz: right front seat belt or left front seat belt does not roll up completely. Caused by belt strap scraping on the retractor housing. Also included model cls550 model…
- 10044164Mar 26, 2012Xentry: mercedes benz: reversible emergency tensioning retractor is compatible with wiring harness, model e350 model year unknown.
Seat belts: other model years
Other parts of the 2012 Mercedes-Benz E350
84 complaintsFuel system
35 complaintsBrakes
20 complaintsEngine
20 complaintsElectrical system
19 complaintsOther or unknown
17 complaintsSuspension
14 complaintsTransmission and drivetrain
10 complaintsSteering
9 complaintsSeats
8 complaintsBody and structure
8 complaintsTires
4 complaints
← All problems reported for the 2012 Mercedes-Benz E350
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