2018 Mercedes-Benz S 450 Recalls, Problems & Safety Rating

8 safety recalls on file

The 2018 Mercedes-Benz S 450 has 8 safety recalls on file with NHTSA.

Owners have filed 7 complaints with NHTSA.

The most-reported problem area is Forward Collision Avoidance (2 reports).

8Recalls
7Owner complaints
0Crashes reported
n/aNHTSA safety rating
Is the repair still open on your S 450?

A recall covers specific vehicles. Your VIN shows whether yours still needs the free repair.

2018 Mercedes-Benz S 450 recalls

Front roof panel may detach while driving, creating a crash hazard

Recall 21V197Mar 19, 202115,096 vehicles affected

The front roof panel, located between the windshield and the panoramic sunroof, may not have been bonded correctly to the vehicle during a previous repair.

Emergency call system may be disabled, delaying crash help

Recall 21V072Feb 12, 202167 vehicles affected

Some 2017 to 2021 Mercedes-Benz vehicles may have had their communication module inadvertently deactivated during a service visit.

Crash Alert May Send Responders to Wrong Location

Recall 21V058Feb 5, 20211,292,258 vehicles affected

Certain 2016-2017 Mercedes-Benz vehicles have a software problem in the communication module that runs the automatic crash notification (eCall) system.

Wrong-size front brake parts may reduce braking and raise crash risk

Recall 19V915Dec 20, 201975 vehicles affected

Some 2018 Mercedes-Benz S 450 and S560 vehicles may have front brake discs, calipers, and pads that are not the dimensions specified for the vehicle.

Steering Assist May Stay On With Hands Off the Wheel

Recall 18V908Dec 19, 20185,754 vehicles affected

Some 2018 Mercedes-Benz S-Class vehicles may have an incorrectly installed steering boot.

Steering assist may stay on with hands off the wheel

Recall 18V910Dec 19, 20186,200 vehicles affected

Some Mercedes-Benz S-Class vehicles may have a fault in the Hands-off-Detection system.

Loose trunk power bars can cause fire or sudden loss of functions

Recall 18V407Jun 15, 20181,701 vehicles affected

Certain 2018 Mercedes-Benz and Mercedes-Maybach S-Class vehicles may have electrical power bars inside the pre-fuse box in the trunk that were not secured properly.

Rear Door May Appear Locked When It Is Not

Recall 17V816Dec 18, 20178,700 vehicles affected

On certain 2017 Mercedes-Benz GLE and GLS vehicles, the left rear passenger door may show that it is locked when it actually may not be locked.

Most common 2018 Mercedes-Benz S 450 problems

Problem areas named in the 7 complaints owners filed with NHTSA.

Problem areaReports
Forward Collision Avoidance2
Service Brakes2
Seat Belts1
Steering1
Unknown Or Other1
Power Train1

What owners report

2025-01-22, Power Train
The contact owns a 2018 Mercedes-Benz S450. The contact stated while driving at an undisclosed speed, the gear shifter independently shifted into neutral. The contact had to hold down the gear shifter for about 30 seconds before the system was reset. Additionally, the check engine warning light was later illuminated. The vehicle was taken to the dealer where it was diagnosed with transmission valve body failure. The contact was informed that the transmission valve body needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was filed. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was appr
2024-07-27, Unknown Or Other
I was driving on highway on 7/26 Friday in exit lane when my panoramic sunroof exploded and shattered on me while driving. It sounded like a shogun. Some of the glass came in on me and other part flew out vehicle causing paint damage. I inspected car there was no impact from anything (ie rock, branch etc). It was a clear sunny dry day no vehicles in front that would have kicked up an object no impact whatsoever. I made to my house 3 miles away and there is no impact after inspection i have insurance adjuster coming Monday 7/29. I checked internet and have heard of others stating same experience. I looked at NHTSA site and my car doesn’t look like it was part of a national recall notice. Ve
2023-05-29, Steering
Steering wheel became extremely stiff to turn and a message that read “steering malfunction increase physical effort” appeared while driving at around 30 mph while in a vacation trip, not only was this extremely unsettling since it happened suddenly but I had to act fast to avoid a collision with other vehicles, once I made it to a safe location I shut the vehicle off and restarted after 15 minutes and it seem drivable again but left me extremely concerned as I am 500 miles away from with no dealerships open to have it looked since is Memorial Day.
2023-03-02, Service Brakes
The contact owns a 2018 Mercedes-Benz S450. The contact stated while driving at an undisclosed speed, the contact attempted to depress the brake; however, the vehicle failed to decelerate and slow as needed. The contact stated that the brakes failed to work as needed. The contact stated that the “Service Required” message was displayed on the instrument panel. The vehicle was taken to a dealer and was diagnosed with electronic parking brake failure. The manufacture was not notified of the failure. The failure mileage was approximately 40,000.
2023-02-26, Service Brakes
I’m reporting this safety concern and seeking advisement from those more knowledgeable than myself on this issue. Recently, as I attempted to actuate the brake of my vehicle. My right foot was entangled with the brake pedal as I moved it from the acceleration pedal to the brake pedal in observance of a “Stop Sign.” I barely avoided what surely would have been a catastrophic collision with another vehicle. The incident occurred in a split second. The shoe of my right foot was entangled with the lower right corner of the underside of the brake pedal, which has a protruding sharp thin metal edge. The sharp thin metal edge impeded the performance my right leg as it dug into my shoe’s

2018 Mercedes-Benz S 450 questions

Does the 2018 Mercedes-Benz S 450 have any recalls?

Yes. NHTSA lists 8 safety recalls for the 2018 Mercedes-Benz S 450: Front roof panel may detach while driving, creating a crash hazard; Emergency call system may be disabled, delaying crash help; Crash Alert May Send Responders to Wrong Location; Wrong-size front brake parts may reduce braking and raise crash risk; Steering Assist May Stay On With Hands Off the Wheel. Recall repairs are normally free at an authorized dealer.

What are the most common problems with the 2018 Mercedes-Benz S 450?

Based on 7 owner complaints filed with NHTSA, the most-reported problem areas are Forward Collision Avoidance (2), Service Brakes (2), Seat Belts (1).

How do I check if a recall on my 2018 Mercedes-Benz S 450 has been fixed?

Enter your 17-character VIN in our VIN recall check. It shows open recalls that have not been repaired on your specific vehicle. Recall repairs are normally free at an authorized dealer.

Other Mercedes-Benz S 450 years

Other 2018 Mercedes-Benz models