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Electrical systemPart report

2015 Mercedes-Benz S550 Electrical system Problems

Complaints
5about this part
Share
12%of 41 total for the year
Median mileage
12,444miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the electrical system of the 2015 Mercedes-Benz S550, 12% of the 41 complaints for this model year. Where a mileage was given, the median is 12,444 miles. 2 of these say a crash was involved and 2 a fire, according to the filers. 1 recall campaign on record is filed under a similar system.

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.

“At night there is a dangerous,very distracting reflection in the windshield. What is being reflected upward are the lighted digital tachometer and speedometer. When the driver is driving at night in his or hers field of view are the dash gauges reflected vividly in the windshield glass. This condition exists in all 2015 S550's. And I believe that it exists on all 2014 S550 please address as I almost have had 3 accidents being distracted by this at night driving. Thank you”

NHTSA complaint #10663238, filed 2014-12, 500 miles

“I drove my 2015 mercedes benz S550 4matic approximately 20 miles to work, parked in the parking lot and about 30 minutes later, I was alerted by pembroke pines police (case# pppd22off050792) that my car was burning when I got to the parking lot pembroke pines fire dept was in the process of extinguishing a catastrophic fire in the engine compartment. The car drove problem free to that point. No warning lights, no smoke, no smell, no leak.the car was in excellent condition prior to the fire with approx 93000 miles. …”

NHTSA complaint #11492024, filed 2022-11

“New vehicle (from mercedes of encino) was being driven in a test drive. Eb on burbank bl-speed limit 50mph--in center lane of 3 eb- mbz salesman reached across driver and set cruise at 40mph and encouraged driver to test the collision prevention system---traffic ahead was stopped at light---salesman continued to tell driver to not apply brakes--driver did not apply brakes---collision avoidance system failed--seat belt tensioners failed---air bags did not deploy when S550 collided with rear of stopped vehicle (eclass mbz) at approx 40mph. …”

NHTSA complaint #10693683, filed 2015-03

Related recalls

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
201716%
201617%
2015512%
201414%
2013114%
2012120%
2011111%
2008421%
20071120%

Other parts of the 2015 Mercedes-Benz S550

Other or unknown
7 complaintsSeat belts
7 complaintsBody and structure
5 complaintsWheels
5 complaintsAir bags
4 complaintsSteering
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsBrakes
3 complaintsEngine
3 complaintsFuel system
3 complaintsTires
2 complaintsForward collision avoidance
1 complaints

← All problems reported for the 2015 Mercedes-Benz S550

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