2016 Mercedes-Benz S550 4MATIC

I got this certified car from Mercedes Benz dealer. I have driven it sparingly for less than 10K miles without really any hitting any bumps or potholes . After a recent service [XXX] 2024 at a MB dealer, I was told that 2 wheels were cracked 1 front & 1 back . I took it to another MB dealer (MB Morristown, NJ) to change the wheels & they advised that all 4 wheels were cracked, & one wheel had 3 cracks. These are premium AMG staggered wheels & without a doubt there is genuine design issue or defect to wheels which at high-speed could crack & crumble causing major injury & destruction to property. I have all the service records regarding this issue INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11589913

Incident

Apr 27, 2024

I HAVE NOW EXPERIENCED CRACKS ON THREE SEPARATE TIRE RIMS. THE CAR HAS LESS THAN 41,000 MILES.THE TIRES ARE LOW PROFILE, RUN FLAT TIRES AND THE RIMS APPEAR TO BE ALUMINUM AND FAULTY.

NHTSA ID

11376131

Incident

Nov 23, 2020

Mileage

40,000 mi

2016 MERCEDES CLS550... I BOUGHT THIS CAR USED AND I'VE HAD IT FOR ABOUT 6 MONTHS. I'VE ALREADY HAD A SEIZURE IN THE CAR AND WAS FOUND SLUMPED OVER BY FLORIDA HIGHWAY PATROL AT A DEAD STOP WITH THE CAR RUNNING AND THE AIR ON AND I WOKE UP IN THE HOSPITAL. SOMETHING IS WRONG WITH THE AIR CONDITIONER CAUSING CARBON MONOXIDE POISONING IS THE ONLY THING THAT I CAN PUT TOGETHER. THE HOSPITAL OBVIOUSLY WOULD NOT THINK THAT IT WAS BECAUSE OF MY AIR CONDITIONER. THEY DID A CAT SCAN EVERYTHING FINE . THEY DID A COVID TEST EVERYTHING AND I WAS CLEARED AND OUT THE DOOR IN 5 HOURS. I HAVE PUT THIS TOGETHER AND FIGURED IT OUT MYSELF. I'VE HAD NOTHING BUT A FOUL SOUR DISGUSTING ODOR COMING THROUGH MY AIR CONDITIONER AND I HAVE ALMOST PASSED OUT ON THREE OTHER OCCASIONS SAME EXACT FEELING UP UNTIL I HAD MY SEIZURE. SOMETHING IS DEFINITELY WRONG AND I WENT AHEAD AND REPLACED MY CABIN FILTER. I STILL HAVE THE ONE THAT WAS IN THE CAR. I WANT COMPENSATION FOR THE DAMAGE THAT HAS BECOME OF MY BODY BECAUSE OF THIS CAR. I HEARD THAT THERE HAS BEEN MANY LAWSUITS FOR THE AIR CONDITIONER ON THIS MODEL AND OTHER MODELS BUT NEVER ANYTHING THAT WOULD KILL SOMEONE. I'M AFRAID TO DRIVE THE CAR. I'VE HAD A TESTER USED IN MY CAR AND IT PICKED UP CARBON MONOXIDE. I AM GOING TO SUE THE BALLS OFF OF MERCEDES AND THE DEALERSHIP THAT SOLD ME THE CAR FOR NOT FIXING THIS PROBLEM OR ANY RECALLS THAT WERE PUT OUT. ANYWAYS I CAN ALMOST SMELL THE EXHAUST FUMES ON TOP OF A SOUR SMELL. GOOD THING I'M SMART ENOUGH TO PUT TWO AND TWO TOGETHER. I EXPECT SOMEBODY TO GET BACK TO ME ASAP AS I WILL BE SEEKING LEGAL REPRESENTATION AND I WILL BRING THIS PUBLIC.

NHTSA ID

11366174

Incident

Jun 20, 2020

Mileage

34,000 mi

HEARD A LOUD BANG WHILE DRIVING DOWN THE HIGHWAY AND DIDN'T KNOW WHAT IT WAS UNTIL RETURNING HOME AND LOOKED UP AND SAW THE RIGID CRACK FROM FRONT TO THE BACK ON THE PANORAMIC GLASS. THERE ARE NO INDICATIONS OF DEBRIS HITTING THE GLASS AS THERE ARE NO CHIPS.

NHTSA ID

11349329

Incident

Aug 14, 2020

Mileage

25,000 mi

VEHICLE'S FRONT WINDSHIELD SPONTANEOUSLY CRACKED OVERNIGHT WHILE VEHICLE AS PARKED IN A LOCKED PRIVATE GARAGE. CRACK ORIGINATES AT TOP OF WINDSHIELD FRAME WHERE BODY TORQUES THE GLASS AND CONTINUES THROUGH ADVANCED DRIVER ASSISTANCE SYSTEMS, ENDING UP IN DRIVER'S LINE-OF-SIGHT. NO VISIBLE POINT OF IMPACT ON DAMAGED AREA OF GLASS. DRIVER ASSISTANCE AND SAFETY SYSTEMS ARE AFFECTED BY THE STRESS CRACK, RENDERING THEM NON-FUNCTIONAL. DEALER INVESTIGATED AND DETERMINED THAT STRESS CRACK WAS DUE TO A DEFECT IN MANUFACTURING AND INSTALLATION OF THE GLASS, NOT DUE TO ANY IMPACT OR ROAD DEBRIS. HOWEVER, MANUFACTURER DENIED COVERAGE UNDER NEW VEHICLE WARRANTY (4YR./50,000 MI), STATING THAT GLASS DEFECTS ARE ONLY COVERED FOR 1 YR/12,000 MI. *TR

NHTSA ID

11329575

Incident

May 20, 2020

Mileage

25,600 mi

PANORAMIC SUNROOF CRACKED WITH NO KNOWN CAUSE. *TR

NHTSA ID

11328687

Incident

Jun 3, 2020

Mileage

10,100 mi

TL* TAKATA RECALL. THE CONTACT OWNS A 2016 MERCEDES BENZ S550 4MATIC. THE CONTACT STATED THAT THE RECALL NOTICE FOR NHTSA CAMPAIGN NUMBER: 19V01000 (AIR BAGS) WAS RECEIVED. AFTER CONTACTING THE LOCAL DEALER (UNKNOWN), THE CONTACT WAS INFORMED THAT THE PARTS NEEDED TO REPAIR THE VEHICLE WERE NOT AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

NHTSA ID

11299024

Incident

Nov 1, 2019

FROM 2014 THROUGH 2016 THE INTELLIGENT DRIVE AND THE DRIVER ASSISTANCE PACKAGE DOES NOT WORK. I KEEP SAYING THE S550 THINKS 200 FEET IS 90 FEET AND 100 FEET IS 30 FEET. WHAT I MEAN TO SAY IS THE SYSTEMS THINK 90 FEET DISTANCE IS 200 FEET AWAY AND 30 FEET IS 100 FEET AWAY. IT DOES NOT MEASURE THE DISTANCE PROPERLY. IT COULD BE, AND MOST LIKELY, A PROGRAMING ISSUE. IT IS THE SAME ON ALL THE 2014 THROUGH 2016 S550'S I HAVE TRIED. THE OTHER THING IT DOES WITH THE DISTRONIC CRUISE CONTROL IS WHEN IT STARTS TO BRAKE, THE DISTANCE SET DECREASES AND THE CAR SPEEDS UP AND AGAIN THE DISTANCE SET DECREASES AND THE CAR SPEEDS UP AND SO ON. IT CHANGES THE DISTANCE ( YOU CAN SEE IT HAPPEN IN THE IN THE MENU SETTING ON THE SPEED AND TACHOMETER SCREEN) AS SOON AS THE CAR AUTONOMOUSLY BRAKES. SET IT AT 200 FEET AND IN REALITY IT IS 90 FEET AND AS SOON AS IT BRAKES THE DISTANCE TO KEEP INSTANTLY DROPS TO JUST UNDER WHAT IT IS SET AT SO THE CAR THINKS THE DANGER IS OVER AND SPEEDS UP AGAIN AND THEN BRAKES AGAIN. AND YOU KEEP GETTING CLOSER AND CLOSER TO THE CAR IN FRONT BECAUSE THE SET DISTANCED KEEPS CHANGING AND YOU HAVE TO BRAKE SO YOU DO NOT HIT THE CAR IN FRONT BECAUSE THE S550 WON'T. I HOPE THIS MAKES SENSE. IT IS EASIER TO SHOW WITH THE DISTANCE GRAPHIC UP ON THE SCREEN. THE WHOLE SYSTEM IS COMPLETELY SCREWED UP. AS IS THE LED LIGHTING SYSTEM IN THE SNOW AND FREEZING RAIN AND SLUSH. CANNOT DRIVE IT AT NIGHT IN A WINTER STORM. IT ALL HAPPENS AROUND TOWN TO HIGHWAY SPEEDS. I WAS ACTUALLY TOLD BY THE SERVICE MANAGER FOR THE DISTRONIC CRUISE TO WORK I HAVE TO BE DRIVING FASTER THAN 75 MPH. MY 2007 S550 4 MATIC'S DISTRONIC AND AUTONOMOUS BRAKING WORKED PERFECTLY.

NHTSA ID

10853154

Incident

Dec 20, 2015

Mileage

50 mi

Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of travel. Note: Sound file in attachment Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the problem is due to cracking of the microweld between the wheel bearing inner race and the joint housing of the side shaft. Note: The collar nut must always be replaced after being loosened. See also LI33.20-P-078406 Remedy Coat contact surface of side shaft with wheel bearing with Molykote paint. To do this, proceed as follows: 1. Remove side shafts 2. Clean contact surface A (see image file in attachment "Outer joint housing before") before coating with Molykote, using "spirit" (free of dust and grease) 3. Coat contact surface A (see image file in attachment "Outer joint housing after") with Molykote and leave to dry for "one hour" in removed condition 4. Reinstall side shafts Note: Before using the antifriction coating (Molykote), stir it or shake it thoroughly for (at least 1 minute).

Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. Sound file attached for comparison. MUST match noise for proper diagnosis. NOTE: Steering functionality is not affected. Cause Contact area between wheel bearing and steering knuckle. See also: LI35.30-P-058566 (Throttle Lift-Off Noise - Rear) LI33.30-P-056665 (Throttle Lift-Off Noise - Front) LI40.10-P-059248 (Wheel cracking noise when cornering) Remedy 1. Perform Operation A and evaluate by testing vehicle. 2. If noise is still present after re-testing: • If 192/232 chassis, verify FIN is in the listed range below in "Operation B" and perform. • If not 192/232 chassis or vehicle is a 192/232 not in the listed FIN range, additional verifications of where the noise is coming from are needed. Use multiple channel NVH method to narrow down location. Verify the LI's listed above were completed or if there are other similar noises associated with the chassis (Example: 192/232 also has under panel noises and an associated LI). Operation A: 1. Clean contact surfaces of wheel bearing and steering knuckle with brake cleaner as seen in the attached pictures. NOTE: The front area of the wheel bearing and the seals must not come into contact with the cleaner, otherwise, the sealing rings will be damaged. 2. Clean threads of wheel bearing mounting. 3. Thinly coat contact surfaces of wheel bearing, steering knuckle, and axle mating face with Molykote (annular joint grease). See the attached steering knuckle and wheel hub pictures for reference. NOTE: Axle mating face greasing is also covered in LI35.30-P-058566 and LI33.30-P-056665. Operation B (Only applies to 192 and 232 in listed FIN range): Only affects vehicles up to FIN end number: • Model series 192: xxx xxx xx 002 876 • Model series 232: xxx xxx xx 022 312 1. Replace steering knuckle. 2. Wheel bearings do not need to be replaced.

Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. Sound file attached for comparison. MUST match noise for proper diagnosis. NOTE: Steering functionality is not affected. Cause Contact area between wheel bearing and steering knuckle. See also: LI35.30-P-058566 (Throttle Lift-Off Noise - Rear) LI33.30-P-056665 (Throttle Lift-Off Noise - Front) LI40.10-P-059248 (Wheel cracking noise when cornering) Remedy 1. Perform Operation A and evaluate by testing vehicle. 2. If noise is still present after re-testing: • If 192/232 chassis, verify FIN is in the listed range below in "Operation B" and perform. • If not 192/232 chassis or vehicle is a 192/232 not in the listed FIN range, additional verifications of where the noise is coming from are needed. Use multiple channel NVH method to narrow down location. Verify the LI's listed above were completed or if there are other similar noises associated with the chassis (Example: 192/232 also has under panel noises and an associated LI). Operation A: 1. Clean contact surfaces of wheel bearing and steering knuckle with brake cleaner (see areas marked blue in pictures "2.jpg" and "3.jpg"). NOTE: The front area of the wheel bearing and the seals must not come into contact with the cleaner, otherwise, the sealing rings will be damaged. 2. Clean threads of wheel bearing mounting. 3. Thinly coat contact surfaces of wheel bearing, steering knuckle, and axle mating face with Molykote (annular joint grease) (see areas marked blue in pictures "2.jpg" and "3.jpg"). NOTE: Axle mating face greasing is also covered in LI35.30-P-058566 and LI33.30-P-056665. Operation B (Only applies to 192 and 232 in listed FIN range): Only affects vehicles up to FIN end number: • Model series 192: xxx xxx xx 002 876 • Model series 232: xxx xxx xx 022 312 1. Replace steering knuckle. 2. Wheel bearings do not need to be replaced.

Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline for all dealer returns is no later than Thursday, July 9, 2026. After July 9th, returns of these parts will no longer be accepted. These parts should be returned via ZSR Special Return, using item category SCM Authorized Part Return. Please include a copy of this NCU as your authorization to return these parts. This procedure will not affect your return allowance. All returned parts will be replaced in accordance with the chart provided below.

Complaint After successful commissioning of the HERMES control unit (N112/9) with XENTRY Diagnosis DVD 03/2026, the message "SOS - service not activated" appears on the instrument cluster. In addition, the following two conditions are also met: • HERMES (N112/9) control unit: event code B15CE00 is ACTIVE and STORED (A+S) • Vehicle Documentation System: For the HERMES control unit, the EID1, EID2, ICCID, IMEI, IMSI, TELNR fields in the "Identification/Serial number" column have the value "-" Cause Still under analysis Remedy Recommission the HERMES control unit (N112/9) with XENTRY Diagnosis 03/2026 and add-on 33399 installed or carry out the procedure with a newer version of XENTRY Diagnosis: XENTRY→ "N112/9 - Control unit for telematics services (HERMES)" -> "Adaptations" -> "Control unit commissioning" -> "Commissioning of previously installed control unit"

Complaint The customer requests deactivation of the N112/9 HERMES communication module Note: Deactivation of the HERMES control unit (N112/9) is not supported for gray-market vehicles. Cause Before deactivating the HERMES control unit (N112/9), it must be clarified by the legal department of the respective MPC whether and under what conditions deactivation may be carried out. If deactivation is not permissible under applicable law, the HERMES control unit (N112/9) must not be deactivated. Remedy Please inform the customer that, following deactivation, the vehicle will no longer be able to place an automatic emergency call, nor will the customer be able to place a manual emergency call. After deactivation, the Mercedes-Benz Digital Extras will also no longer be available. Please have the attached sample form checked by your market's legal department, adapted to local requirements if necessary, and approved. Furthermore, after informing the customer about the effects of deactivation, please have the workshop complete and sign the approved form together with the customer, and send it to the MPC via a TIPS case for audit-compliant documentation. Furthermore, the workshop must affix a sticker to the emergency call button cover on the overhead control panel and to the emergency call button itself. After affixing, pictures of the overhead control panel need to be attached to the TIPS case for audit-proof documentation. After deactivation, the HERMES control unit (N112/9) is in the "Out of Service" operating status, and the display "SOS NOT READY" appears in the Audio/COMAND system. This display message tells the customer that the emergency call function is not available. In detail, the following steps must be carried out 1. The workshop must inform the customer about the effects of deactivation (see above) 2. Legal review by the MPC Legal department to determine whether deactivation is permissible for the vehicle and provision of a market-specific customer form based on the examples (see "Example - Deactivation communication module HERMES customer declaration English V3.0.pdf") 3. Completion of the market-specific customer form by the workshop and obtaining the customer’s signature 4. Creation of a XSS ticket by the workshop for the MPC with the signed customer form attached 5. Written confirmation of legally reviewed and approved deactivation by the MPC in the TIPS case (see attachment How+to+request+adding+Code+09o+via+XSS+v2.pdf, point 1) 6. Creation of an XSS ticket for documentation of the SA code "09o" (zero nine oh) in the Vehicle Documentation System (see attachment How+to+request+adding+Code+09o+via+XSS+v2.pdf, steps 2–7) 7. Ordering of stickers (part number A9078172900), quantity: 2 8. Affixing of the sticker (part number A9078172900) to the cover of the emergency call button on the overhead control panel (see attachment HERMES-Deactivation_+pictures+of+sticker.png) 9. Affixing of the sticker (part number A9078172900) to the emergency call button on the overhead control panel (see attachment HERMES-Deactivation_+pictures+of+sticker.png) 10. Taking photos of the applied stickers and attaching them to the TIPS case 11. After the XSS ticket has been successfully processed, the communication module must be deactivated using XENTRY: • Connect XENTRY Diagnosis • Access the HERMES control unit (N112/9) • "Adaptation" tab, menu item "Teach-in processes" -> "Deactivation" • Follow the instructions