"How reliable is the 1993 Mercedes Benz 400E?"

"Based on 23 NHTSA complaints, the 1993 Mercedes Benz 400E has a median complaint mileage of 160000 miles. The most common issue is ELECTRICAL SYSTEM."

"What are common problems with the 1993 Mercedes Benz 400E?"

"The most frequently reported component in NHTSA complaints for the 1993 Mercedes Benz 400E is ELECTRICAL SYSTEM, accounting for a significant portion of the 23 total complaints filed."

1993 Mercedes Benz 400E: Reliability Data

Source: NHTSA — 23 complaints

Total Complaints

160,000mi

Median Mileage

ELECTRICAL SYSTEM

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

107,500 25th Percentile

160,000 Median Mileage

195,394 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ELECTRICAL SYSTEM

ELECTRICAL SYSTEM:WIRING

VEHICLE SPEED CONTROL

ENGINE AND ENGINE COOLING:ENGINE

ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD

ENGINE

FUEL/PROPULSION SYSTEM

ELECTRONIC STABILITY CONTROL (ESC)

UNKNOWN OR OTHER

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"A SENSOR BETWEEN THE CRUISE CONTROL AND THE ALTERNATOR, CAUSING VEHICLE TO STOP IMMEDIATELY WHILE DRIVING IN TRAFFIC. *AK"

"THE ELECTRICAL INSULATION OF THE MAIN WIRING HARNESS HAS VIRTUALLY DISINTEGRATED, APPARENTLY FROM THE (NORMAL) HEAT OF THE ENGINE. THE INSULATION LITERALLY FLAKES AWAY IN MY HAND WHEN BEING HANDLED EVEN WITH THE MOST GENTLE TOUCH. THE MANUFACTURER (MERCEDES) CLAIMS THIS IS NOT A PROBLEM DESPITE TH..."

"DT: THE VEHICLE STALLED WHILE DRIVING. THERE WERE NO ACCIDENTS. WHEN THE CONSUMER TOOK THE VEHICLE TO THE DEALER TO BE REPAIRED THEY THOUGHT IT WAS THE TRANSMISSION. THEY REBUILT THE TRANSMISSION, REPLACED THE STARTER AND THE MAIN WIRING HARNESS THAT GOES INTO THE TRANSMISSION. AFTER THIS IT ..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28