2017 MERCEDES-BENZ E300 Complaints

I am writing to formally lodge a complaint regarding serious and repeated issues with my 2017 Mercedes-Benz E300, purchased and serviced exclusively by authorized Mercedes-Benz dealerships. 1. Repeated OEM Run-Flat Tire Failures Within the past two years, I have been forced to replace nine OEM run-flat tires, including:    •   3 replacements at Mercedes-Benz of Tysons Corner, VA    •   2 replacements at Goodyear Tires, Cattlemen Rd., Sarasota, FL    •   4 additional replacements at certified service centers These failures occur under normal driving conditions, often without visible punctures or road hazards, and at safe speeds. Each tire replacement costs approximately $550, plus towing, diagnostic fees, and rental car costs. The financial and safety burdens are substantial, and this level of tire failure is not normal for any vehicle—particularly a low-mileage, luxury sedan. 2. Electrical/Dashboard Recording Malfunction My dashboard service history fails to record service visits, even when performed at Mercedes-Benz dealerships. This is deeply concerning as it compromises vehicle resale value, warranty tracking, and transparency of maintenance records. Despite multiple visits and attempts by service centers, the issue persists without resolution. 3. Financial Impact and Brand Reputation The total cost of repeated tire replacements and unresolved electrical issues has reached several thousand dollars, despite my vehicle having relatively low mileage and receiving all recommended service at authorized dealers. This experience is completely inconsistent with the quality and reliability promised by the Mercedes-Benz brand. I am requesting the following:    •   Full investigation into the defect rate of OEM run-flat tires on the 2017 E-Class models    •   Immediate inspection and repair of the dashboard/electrical recording issue at no cost to me    •   Reimbursement for tire-related costs and associated expenses incurred due to repeated failures.

The contact owns a 2017 Mercedes-Benz E300. The contact stated while driving approximately 40 MPH, the accelerator pedal was depressed; however, the vehicle hesitated before shifting to a higher gear. The contact stated that the transmission was also slipping out of gear, and the vehicle shifted into LIMP Mode. The contact stated that several unknown warning lights were illuminated. The contact stated that the transmission was not shifting above second gear. The contact had the vehicle towed to a local dealer who diagnosed the vehicle and determined that the transmission control module (TCM) had failed and needed to be replaced. The vehicle was being repaired. The manufacturer was informed of the failure. The contact researched online and related the failure to NHTSA Campaign Number: 17V078000 (Power Train); however, the VIN was not included in the recall. The failure mileage was approximately 100,000.

Mercedes-Benz E300 is affected by a Transmission Control Module (TCM) recall, you might notice these symptoms: - Delayed or rough shifting: The transmission may hesitate or struggle to change gears. - Slipping gears: The car might unexpectedly shift out of gear or fail to stay in the correct gear. - Unresponsive transmission: You may experience difficulty accelerating or feel like the car is stuck in a lower gear. - Warning lights: The check engine or transmission warning light may illuminate on the dashboard. - Limp mode activation: The vehicle may enter a fail-safe mode, restricting speed and performance to prevent further damage.

When using Map apps through CarPlay, I’ve noticed two consistent problems: Inaccurate Vehicle Speed: The carplay speedometor does not match the the actual speedometer of the vehicle, which seems always 1.6 times higher than the actual(seems to be the metric confusion from mph to kmh). GPS Drift: The location shown on the map is frequently ahead of my actual position, which causes navigation directions (especially turns and exits) to be slightly mistimed. However, when the speedometer is correct, the GPS drift issue would disappear automatically. So I assume that these two issues are correlated. These issues can be confusing and potentially unsafe while driving. I’ve tested other navigation apps on CarPlay and found they do exhibit the same behavior, so I suspect the issue may be general to Mercedes E300 and probably other vehicles. I did a bit of research and found it to be a common issue of Mercedes E300 2017. Please see attached link for the threads from MB forum. https://mbworld.org/forums/gls-class-x167/843643-wrong-speed-limit-detected.html Thank you for your assistance, and I look forward to your reply. Best regards

A warning saying Front Right Malfunction Service Required. I took my vehicle to a mercedes dealership to have my vehicle inspected. I was told that the Airbag seat cushion/weight sensing control unit all needed to be repaired/fixed. I have an extended warranty but this was not covered. I was told my Airbag might not be deployed if I was involved in an accident and someone was in my front passenger seat. "No one should ride in the front passenger seat until this situation is taken care of." I feel strongly that this should have been covered, plus it should've been a recall on this. It's a real safety issue!!! This need to be on the recall list for all mercedes or other vehicles with this particular issue.

The instrument panel that displays the digital speed, warning lights, etc. went black suddenly when turning on the car. It came back on suddenly while driving on the highway but after the car was turned off and restarted, the instrument panel has remained black. This is a huge safety issue as there is no warning light indicators, merging lanes does not signal if another car is present, among many other concerns. The vehicle has been inspected by mechanic. There was no warning indicators that instrument panel would go black suddenly. It happened in February 2025.

The automatic breaking assist is malfunctioning most of the time it just gives me a warning on the dash that it is limited a few times it has bumped the brakes briefly like it was sensing something in front of the car the perimeter sensors are malfunctioning as well like it’s sensing something all around the car very close then those sensors completely shut off and don’t work again until the car is shut off and started again

The contact owns a 2017 Mercedes-Benz E300. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the gear shifter failed to shift into the drive as intended. In addition, the contact stated that when the gear shifter was shifted into drive after several attempts, the gear shifter shifted to drive three instead of drive one. No warning light was illuminated. The vehicle was taken to the dealer where it was diagnosed with a transmission control module and a shift-level module failure. The contact was informed that the transmission control module and shift level module needed to be replaced. The vehicle was not repaired. In addition, the contact stated that when the failure had started, the transmission slipped, and the gear shifter independently shifted into neutral. The contact stated that the failure persisted. The manufacturer was made aware of the failure. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 43,000.

Crankcase ventilation system has failed. Spending $1700 because Mercedes won’t fix it because it’s a known issue and requires a lot of work. They left my car sitting in their parking lot for a week. I have the screen shots to prove it.

While getting in to start my vehicle I got a message code on my screen saying Steering Malfunction, Increased Physical Effort. I contacted Mercedes USA and was told they had a recall on my vehicle which is a 2017 E300 Mercedes Benz. The recall effected vehicles made from July 29,2016 - February 14-2017. My vehicle was within this range being as though it was produced in 08/16. My car only has around 20k miles, basically a new vehicle inside and out. Even though my vin # is not showing as being part of this recall, I'm having the exact same issue and would like my vin# to be included. Thanks kindly.