2012 Mercedes-Benz E350 Fuel/propulsion System Problems
NHTSA component category: FUEL/PROPULSION SYSTEM · data through 07/14/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How fuel/propulsion system ranks on this vehicle
Share of the 215 complaints citing each category; one complaint can cite several. Full breakdown on the 2012 Mercedes-Benz E350 overview page.
What owners report
“MERCEDES E350 2DR CABRIO WITH 50,000 MILES HAS STRONG FUEL ODOR ON DRIVERS SIDE. MERCEDES MECHANIC FOUND LEAK FROM LEFT SIDE OF FUEL TANK W/…”NHTSA complaint 11338659 — filed 07/10/2020
“GASOLINE SMELL IN CABIN AS WELL AS GARAGE WHEN REFUELING WITH VISIBLE GASOLINE ON TOP OF TANK.”NHTSA complaint 11324526 — filed 05/14/2020
“FUEL PUMP HOUSING (UNDER REAR SEAT,DRIVERS SIDE) CRACKED AND LEAKING FUEL. CAR FILLS WITH STRONG FUEL VAPORS WITH RAW FUEL COLLECTING ON TOP OF FUEL…”NHTSA complaint 11298586 — filed 01/11/2020
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Fuel/propulsion System complaints by year filed
Frequently asked questions
Does the 2012 Mercedes-Benz E350 have fuel/propulsion system problems?
Fuel/propulsion System is the #2 most-reported problem area on the 2012 Mercedes-Benz E350: 27 of 215 complaints on file (12.6%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2012 Mercedes-Benz E350 have in total?
215 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 6 involved a crash, 1 involved a fire, 5 reported injuries, and none reported deaths.
What does NHTSA's fuel/propulsion system category include?
NHTSA assigns each complaint to standard component categories; this page reports the FUEL/PROPULSION SYSTEM category exactly as NHTSA defines and records it.
