AI Damage2007 Mercedes-Benz E320: common problems
Owners of the 2007 Mercedes-Benz E320 filed 17 complaints with NHTSA, most often about powertrain and engine. Details by component below, with sources.
Key figures
- Owner complaints
- 17
- involving a crash
- 1
What fails most often
- 1 Powertrain 29% of all complaints
- 2 Engine 24% of all complaints
- 3 Fuel/propulsion system 24% of all complaints
- 4 Electrical system 12% of all complaints
- 5 Engine and cooling 6% of all complaints
- 6 Exterior lighting 6% of all complaints
- 7 Fuel system 6% of all complaints
- 8 Service brakes 6% of all complaints
- Powertrain: 5 complaints (29% of all).
- Engine: 4 complaints (24% of all).
- Fuel/propulsion system: 4 complaints (24% of all).
- Electrical system: 2 complaints (12% of all).
- Engine and cooling: 1 complaints (6% of all).
Symptoms owners describe
How many of the 17 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Powertrain | 5 | 0 | 0 |
| Engine | 4 | 0 | 0 |
| Fuel/propulsion system | 4 | 0 | 0 |
| Electrical system | 2 | 0 | 0 |
| Engine and cooling | 1 | 0 | 0 |
| Exterior lighting | 1 | 0 | 0 |
| Fuel system | 1 | 0 | 0 |
| Service brakes | 1 | 1 | 0 |
| Vehicle speed control | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
While pulling into a parking spot, the brakes failed to stop the car.
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.
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.
The insulation on the wiring harnesses for the headlights has completely disintegrated and is sitting in a pile of bits on the bottom of the headlight assembly, literally leaving completely bare wires leading up to the headlamp sockets.
While trying to merge into highway traffic (i94 in michigan) I pressed the accelerator to gain speed to merge only to find that the engine lacked any power, the rpms rose slowly but there was little to no acceleration.
The contact stated that when attempting to accelerate, the vehicle failed to shift from first gear and the check engine warning light illuminated. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 65,000.
But last week the right low beam headlight failed. I had left and right h7 standard low beam halogen bulbs changed since the front bumper has to be removed. Later that day the new left side h7 failed. So my mechanic explained that the hella light fixture seen in mb, bmw, etc..
While driving, normal acceleration lagged more than usual. When I submitted car for service, I was told foam around injectors has melted into the injectors. This damaged three injectors on one side to the point of complete replacement (approximately $800 each). I was told I caught this situation early.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 8,820 of 36,656 model years in the NHTSA data (top 24% most complained about).
On average one model year of the E320 has 73 complaints (16 years in the data). This year has 17, below average.
What to check before buying
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Other years of this model
Questions and answers
What are the most common problems with the 2007 Mercedes-Benz E320?
Owner complaints to NHTSA most often mention: powertrain, engine, fuel/propulsion system. Total complaints: 17. The most frequent symptoms in complaint texts: jerking, harsh shifts (18%), headlights and tail lights (12%), smoke, burning smell, fire (12%).
How many service bulletins (TSB) were issued for the 2007 Mercedes-Benz E320?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2007 Mercedes-Benz E320 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2007 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.