Mercedes Benz E320 fuel pump problems

Filed Feb 23, 2021 · Fuel system · 147,000 miles · MD

Driver is experiencing a heavy odor of gasoline after fill up. Vehicle is not overfilled/topped off. Vehicle was sitting inside garage when owner noticed a heavy fuel odor and notified fire department to investigate. Per recommendations of fire department, keep vehicle out of garage until issue could be inspected by a qualified mechanic. Mechanic inspected fuel system and found fuel leak under rear seats near fuel pump/sending unit. Mercedes benz refuses repair issue saying it is not a safety issue. Gasoline fumes/vapors are especially heavy inside a single car garage, and if a ignition source is introduced it could become fatal.

Filed Aug 20, 2019 · Fuel system · 140,000 miles · MD

Tl* the contact owns a 2004 mercedes-benz e320. The contact stated that a fuel odor was perceived inside and outside the vehicle without warning. The vehicle was taken to the american service center dealer (703‑284‑2500, located at 624 s glebe rd, arlington, va 22204) where it was diagnosed that a canister valve and purge valve shut off and caused fuel to leak in the rear of the vehicle. Technician advised that the valves and the fuel pump needed to be replaced. The contact was told that there was no recall. The manufacturer was not made aware of the failure. The vehicle was not repaired. The contact referenced the federal safety agency action number: ea13003 (fuel system, gasoline). The failure mileage was approximately 140,000. The VIN was not available.

Filed Apr 12, 2018 · Fuel system · 105,000 miles · AZ

Fuel leaking to the inside of passenger compartment under access port under rear seat cushion, that's the location of the fuel pump. I made an appointment with tucson mercedes benz to inspect the car since I believed that a mercedes recall would correct the problem. I had several discussions with service advisor mark schofield and he assured me twice that the recall is in place and they would fix the fuel system defects without charge. He called me this evening and told me all about why tucson mercedes would not cover the repair, I was told the extended warranty program ended 2/21/2018. I bought the car on 4/5/18, filled it up with gas on 4/08/18 and the car was filled with fumes that night as well as in my garage. Tucson mercedes first said that the tank was leaking at the vent tube between the left and right access points. He told me that the cost would normally be $3000 but he reduced it to $2000. I asked mark how the fuel could run across the top of the tank, climb the locking ring and puddle on top of the left side fuel pump? He also told me that mercedes could not just replace a portion of the fuel system without replacing the entire fuel system, including the tank. Also, not true. He said that upon a second examination was made and there appears to be a crack on top of the fuel pump and now that's where the leak is coming from. Now his price to repair all is $770 + tax. After a few words more, the price dropped to $700 + tax. I feel that mercedes should just fix my vehicle and call it good. This learned that this car had a fuel pump installed at 59,000 miles. I missed their self imposed cut off date by about 6 weeks, not so much time for such a serious manufacturing defect to health and safety. The fumes inside my car and garage could have caused a fire or worse yet, an explosion. The problem first appeared after the first time I filled the tank.

Filed Dec 8, 2017 · Fuel system · 103,000 miles · CA

Mercedes informed that they would not honor their warranty to cover their faulty fuel pumps. I have had several conversation with susan (executive referral manager) and she declined my request to pay for the invoice. My fuel pump failed and I had to have it replaced before the car had serious problems.

Filed Jul 2, 2017 · Fuel system · 135,378 miles · CA

8/4/16 vehicle had strong smell of gas inside after fillup. Went away after half full. Noticed recall in online doc's and took to mercedes of san diego where tank mod, cable harness, bracket, seal ringx2, insulation under seat were replaced no charge under warranty. 6/20/17 vehicle quit when approaching residence. Then wouldn't start but cranked. Same symptoms next day. Towed to mb san diego diagnosed fuel pump components failed $1,000 w/no offer to cover under recall. I further reviewed same internet doc's which show fuel pumps, filters, fuel level senders are covered under mb 15 yr. Unltd miles warranty. Will call service writer in morning to advise they should cover repairs, tow plus rental car while I was researchng.

Filed Nov 3, 2016 · Fuel system · 140,000 miles · CT

The car has fuel (gasoline) vapors inside and outside of the car. The fuel sending unit or the fuel pump in the saddle gas tank under the back seats leaks gasoline and the smell makes me sick. I am afraid the car will explode if the vapor is present at the combustible ratio of gasoline to air.

Filed Aug 9, 2016 · Fuel system · 175,000 miles · MA

After fuel filter replacement, vehicle operated fine for about 7 miles. While idling a couple of minutes in the driveway upon return from the short trip, the return line hose exiting the fuel filter expanded, ruptured, and sprayed fuel out at a high rate. After hose was repaired, fuel gushed out of evaporative canister discharge tube and purge valve canister. Vise grips placed on the rubber tube leading from the return line to the canister stopped the gusher. New fuel filter that was just installed (pronto pf5416) was suspected to be defective - causing excessive return line fuel volume. With the poor design of the return line plumbing and restriction back to the tank, the excess volume was piling up in the evaporative canister and out the purge valve in a massive gushing leak. Once a second new fuel filter was fitted (purolator f65416), vehicle ran properly again without leakage - however, severe leakage from the top of the evaporative canister was noted during a fillup attempt shortly afterwards. This never occurred in the prior to the filter replacement. From all indications, the design is very poor and susceptible to any conditions which result in excessive return line fuel volume. The amount of fuel pouring out of the top of the evaporative canister assembly and discharge was indeed a fire and environmental hazard - the equivalent of an open fuel pump output discharge. In addition to all of this, during the filter replacement/testing process, loud banging was heard from the tank itself. Removal of the gas cap resulted in a massive pressure release. From my observations as a mechanic with over 25 years experience servicing foreign cars, the ventilation and fuel pressurization system on this vehicle is improperly designed and unsafe. Vehicle was on a lift while being serviced.

Filed Nov 9, 2015 · Fuel system · 138,000 miles · NJ

Sensed strong gas odor at fill up. Investigate online and found that this car has this known issue but it is not a recall.? Had mb mechanic look and found leaking gas under rear seat near fuel pump.

Filed Sep 17, 2015 · Fuel system · CA

2004 mercedes benz e-320. Consumer writes in regards to vehicle warranty extension for repairs of fuel tank leaks. *smd the consumer stated in late 2009. He experienced a gas smell in the interior of the vehicle the smell became worse and eventually was noticeable outside the vehicle, too/ the vehicle was taken to the dealer to investigate and repair the problem. A leak was found on the left side of the fuel tank. The seal rings for the fuel level senders, fuel pump, filter assembly and harness were replaced in order to correct the fuel leak.

Filed Mar 18, 2015 · Fuel system · 74,000 miles · TX

Customer complains of fuel smell outside of vehicle on approach. Upon entering the vehicle the smell is unbearable and causes nausea when driving. Inspected the vehicle and found the left side (driver's) fuel pump seal is leaking causing fuel to puddle and saturate inspection plate. The fuel wicks past inspection plate gasket and into the passenger compartment saturating the area directly under the rear seat. Replaced fuel pump module with seal (gasket) as well as gasket on right (passenger) side.