2014 MERCEDES-BENZ E350 Complaints

Car was being driven at secondary road speed (~40MPH). Engine suddenly began to spudder and misfire terribly. Came to a stop light engine was idled roughly. Accelerated from stop, when check engine light turned on. Car went into limp MODE at a very dangerous rail road crossing and left turn intersection. Without acceleration, family was in danger of being hit by train and incoming traffic. Took car to Mercedes mechanic. Faulty parts were the Camshaft Position Solenoid valve, ignition cool. Short circuit in one part caused blown ignition fuse and cascading mechanical problems and safety risks. Repair cost so far is $1,100. Concern is the placement of the faulty part. It is exposed to high heat in the motor compartment and poses a fire hazard as well as a personal injury hazard to the occupants and driver.

This car has an electrical problem related to the Radio Amplifier and Speakers. many stories on the net of burning wire speakers and amplifier related to this. i will attach link, my story same as all the rest. I have disconnected after wife complained of smell of electrical fire and smoke from speakers. our car hs Apc 56,000 miles now. https://www.carcomplaints.com/Mercedes-Benz/E350/2014/electrical/electrical_system.shtml Control Module - Mercedes-Benz TYP: Sirius – SDAR HW: 212 870 57 89 Date: 12/2019 SW: 212 902 79 03 Date 12/26/2000 Serial: 063005830376 Mercedes A 212 870 56 89 Model# DL5938 DELPHI Q01 PN: 28335938 Bar Code# A21287056890128335938E1361307 I am unable to access the speakers that burned and let the smoke out. Kurt Kaufman

Vehicle is 9 years old, with 73000 miles. Dealer Service has advised that the rear subframe and brake lines are rusting and need to be replaced as a safety issue. Cost quoted was $8800. Mercedes agreed to pick up the cost of the parts and the dealer offered to split the installation cost, bringing my total down to $3150. On-line research reveals this is a common problem across several product lines and has been an issue for 20+ years. Failure at this point could lead to uncontrolled movement of the the rear suspension structure, the rear suspension members, wheels, and electronic sensors in the ABS causing loss of control and brake failure.

Informed by local Mercedes dealer that the vehicle has severe rear brake line corrosion at 55K miles. Stated that the vehicle could suffer loss of braking power if the line(s) ruptured. This is unacceptable for a vehicle with this mileage. According to internet searches this is a widespread problem on 2014 models and earlier. Estimated cost to repair is $3600.

Have purchased a 2014 mercedes E350 59k miles. This vehicle has an issue as so do many Mercedes with their rear subframes rotted out at the control arm bracket which causes the rear link/thrust arm to detach from the subframe/axle carrier and posses a danger when breaking due to the rear spindle assembly flexing throwing the wheels out of alignment and could be at risk for a car crack. This vehicle has already been in a minor crash as a result of this issue. I personally have not brought it to Mercedes to get it diagnosed inspected or the police law enforcement but there are many cases online on the Mercedes Benz forums to which this has also happened to. This issue applies to other Mercedes models ranging from 2010 all the way to 2016. Videos of the exact vehicle brought to an independent shop available upon request.

My 2014 Mercedes E350 with 54k miles has a Harmon Kardon sound system. About 4 months ago there was static/popping sound from the rear deck speaker driver side. The radio was turned off but the static sound remained. The popping eventually went away. Today, the static sound came back along with plastic burning that filled the inside of the cabin. This is a safety concern that should be acknowledged as it can cause a fire or electrical shortage. The smoke and scent of burning plastic from the speaker can cause health issues, distract a driver, and lead to a potential fire. Please look into this matter and protect other drivers. Thank you.

Fuel smell really strong & a huge fuel leak started on 6/20/2022. The fuel smell was so strong inside the the car I couldn't stay in it. It started leaking before I fueled up my vehicle. Wen to the back of the car and notice a huge puddle of gas. I didn't know anything about this recall until today. I've owed the car for three years. I hope that Mercedes will fix this issue. Very dangerous.

Strong gas odor inside cabin,whenever gas tank is full I can smell gas for extended time period. May relate to faulty gas line under the back seat.

Intermittently, while driving several of the electrical systems will fail including the lane keep assist and abs. When this happens, it also causes the instrument cluster to rapidly change speeds, making the vehicle unsafe to operate as the driver is unable to tell what speed they are going, which can become extremely hazardous since this happens at random. The issue has been diagnosed to be a faulty Radar Sensor in the rear bumper, however the specific part has been on backorder since February 2022 and Mercedes-Benz has shown no signs of urgency with resolving this issue. I have a video of the ongoing hazard that I can submit as well, it's just too large to attach to this form.

Brake booster starting to squel and squeak. Brakes Not feeling as firm Driver seat leather was torn at stitching.