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Fuel systemPart report

2007 Mercedes-Benz E320 Fuel system Problems

Complaints
4about this part
Share
24%of 17 total for the year
Median mileage
21,458miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the fuel system of the 2007 Mercedes-Benz E320, 24% of the 17 complaints for this model year. Where a mileage was given, the median is 21,458 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.

“I took my 2007 mercedes benz blutech to the dealer for the once a year b service. While they were doing the service, they noticed diesel fuel leaking behind the left rear tire. I had them perform an inspection for $135 and they determined that fuel was leaking out of the left fuel level sender area with no visual damage. They recommended replacing left tank seal and inspecting tank and sensor for cracks for $368. Before having the work performed , I went on the internet and found others having the same problem with their mercedes with NHTSA action #pe12001. …”

NHTSA complaint #10482449, filed 2012-10, 21,458 miles

“Gas tank is leaking fuel on the ground under the rear left floor in front of the rear left wheel. There was an NHTSA recall campaign for all e class models 2003 > 2009, which our car is part of. This is a well known and documented issue. However mercedes says the campaign does not include our diesel powered cdi bluetec model. We are afraid this is a safety issue ... It has been going on for a long time and is getting worse and worse.”

NHTSA complaint #10818441, filed 2016-01

“Noticed strong smell of diesel fuel by left rear tire, in several days a leak was under left tire, had fuel tank sending unit gasket replaced, no visible leaks but fumes are still present 1 year after repair. When repair was made all related parts were cleaned of residential fuel. Want to know if MB has dealt with splits or cracks in fuel tanks.”

NHTSA complaint #11592017, filed 2024-06

“Fuel tank leak at the top of the tank. MB has well documented gasoline leaks for MB model 211 years 2003-2008. Notices were sent to owners of gas powered auto's but none were sent to DIESEL auto owners. The exact same procedure and parts are needed to repair DIESEL tanks as gasoline tanks. Either this is a oversight by MB or the problem was ignored. My DIESEL tank is leaking exactly as other documented gasoline MB vehicles model 211.”

NHTSA complaint #11445604, filed 2021-12

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2009450%
2008220%
2007424%
2006922%
200512253%
200411758%
20038841%
200214%
200125%
200049%
199967%
199813%
199712%
199649%
199588%
1994218%

Other parts of the 2007 Mercedes-Benz E320

Transmission and drivetrain
5 complaints
Engine
4 complaints
Electrical system
2 complaints
Brakes
1 complaints
Engine cooling
1 complaints
Exterior lighting
1 complaints
Vehicle speed control
1 complaints

← All problems reported for the 2007 Mercedes-Benz E320

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