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453 — fortwo / forfour (2014-2024) — Service Bulletins

Workshop and reference excerpts for 453 — fortwo / forfour (2014-2024) in the Service Bulletins system.

13 excerpts from 13 sources.

Sources on this page

nhtsa.gov/complaints/11021097

NHTSA Owner Complaint ODI 11021097

nhtsa.gov/complaints/11021097 · p. 1 · Applies to: 453

Manufacturer: Mercedes-Benz USA, LLC Components: POWER TRAIN Date filed: 09/01/2017 | Date of incident: 08/28/2017 Vehicles affected: - MY

Owner narrative: THE CAR HAS A INTERMITTENT PROBLEM WITH SHIFTING INTO REVERSE. WHEN SHIFTED THE TRANSMISSION LEVER TO THE REVERSE POSITION THE SHIFT INDICATOR ON THE INFORMATION CENTER WILL SHOW BLANK AND A HIGH PITCH BEEPING SOUND WILL BE HEARD.

nhtsa.gov/complaints/11032168

NHTSA Owner Complaint ODI 11032168

nhtsa.gov/complaints/11032168 · p. 1 · Applies to: 453

Manufacturer: Mercedes-Benz USA, LLC Components: SEAT BELTS Date filed: 10/07/2017 | Date of incident: 10/01/2017 Vehicles affected: - MY

Owner narrative: PASSENGER SEAT BELT STOP SECURING THE BUCKLE NO APPARENT REASON

nhtsa.gov/complaints/11032875

NHTSA Owner Complaint ODI 11032875

nhtsa.gov/complaints/11032875 · p. 1 · Applies to: 453

Manufacturer: Mercedes-Benz USA, LLC Components: STEERING Date filed: 10/11/2017 | Date of incident: 09/22/2017 Vehicles affected: - MY

Owner narrative: TL* THE CONTACT OWNS A 2017 SMART FORTWO. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V447000 (STEERING); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. MERCEDES-BENZ OF SOUTH BAY (3311 PACIFIC COAST HWY, TORRENCE, CA) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.

nhtsa.gov/complaints/11072673

NHTSA Owner Complaint ODI 11072673

nhtsa.gov/complaints/11072673 · p. 1 · Applies to: 453

Manufacturer: Mercedes-Benz USA, LLC Components: ELECTRICAL SYSTEM Date filed: 02/13/2018 | Date of incident: 11/01/2017 Vehicles affected: - MY

Owner narrative: TL* THE CONTACT OWNS A 2017 SMART FORTWO. THE CONTACT STATED THAT THE VEHICLE DID NOT FULLY CHARGE TO THE MANUFACTURER RECOMMENDED MILEAGE RANGE. IN ADDITION, IN COLD WEATHER CONDITIONS, THE MILEAGE OF THE VEHICLE DROPPED APPROXIMATELY 10 MPH ON THE INSTRUMENT PANEL. MERCEDES-BENZ OF BOSTON (259 MCGRATH HWY, SOMERVILLE, MA) AND THE MANUFACTURER WERE CONTACTED IN REGARDS TO DIAGNOSTIC TESTING. THE TECHNICIAN INFORMED THE CONTACT THAT THE VEHICLE OPERATED AS INTENDED. THE FAILURE MILEAGE WAS APPROXIMATELY 1,000.

nhtsa.gov/complaints/11127959

NHTSA Owner Complaint ODI 11127959

nhtsa.gov/complaints/11127959 · p. 1 · Applies to: 453

Manufacturer: Mercedes-Benz USA, LLC Components: ELECTRICAL SYSTEM,EXTERIOR LIGHTING,VISIBILITY/WIPER Date filed: 09/06/2018 | Date of incident: 06/21/2018 Vehicles affected: - MY

Owner narrative: TL THE CONTACT OWNS A 2017 SMART FOR TWO. WHILE THE VEHICLE WAS IN REVERSE, THE CONTACT HEARD AN ABNORMAL NOISE COMING FROM THE REAR OF THE VEHICLE. THE REAR EXTERIOR LIGHTING AND REAR WIPER WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO GARAGE ISLA VERDE LLC (LOCATED AT AVE, BALDORIOTY DE CASTRO KM 10.3, PR 00979, (787) 620-1313), BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 2,334. TR CONSUMER COMMENT IN SPANISH. UPDATED 10/30/18JB

nhtsa.gov/complaints/11190596

NHTSA Owner Complaint ODI 11190596

nhtsa.gov/complaints/11190596 · p. 1 · Applies to: 453

Manufacturer: Mercedes-Benz USA, LLC Components: SEAT BELTS Date filed: 03/21/2019 | Date of incident: 09/01/2018 Vehicles affected: - MY

Owner narrative: SEAT BELTS DO NOT RETRACT. THERE WERE COUPLE OF TIMES WHILE IN TRANSIT ON CITY ROAD, I HAD TO APPLY BRAKE SUDDENLY AND SEAT BELT FAIL TO ENGAGE TO HOLD THE PASSENGER BACK . ALL THE TIME , BOTH SEAT BELTS DO NOT RETRACT TO THEIR HOME POSITION WHEN NOT IN USE AND CAR IS STOPPED AND PARKED, THIS CAUSED DENTS TO THE CAR'S BODY AND FRAME AROUND THE DOOR WHEN WE CLOSE THE DOORS. I REPORTED TO THE LOCAL MERCEDES DEALER SEPTEMBER 2018. IN DECEMBER, THEY COULD ONLY REPLACE THE DRIVER SIDE SEAT BELT. THE PASSENGER SIDE'S BELT HAS BEEN CLAIMED TO BE BACKED ORDER TILL NOW. I HAVE CALLED NUMEROUS TIMES TO FOLLOW UP FOR THE REPAIR AND I AM STILL WAITING FOR OVER 6 MONTHS FOR THIS FAULTY SEAT BELT TO BE REPAIRED. I DON'T FEEL SAFE TO DRIVE MY CAR. I LEASE THIS NEW CAR SINCE OCTOBER 2017 AND THE SAFETY ISSUE HAPPENED ONLY WITHIN A YEAR.

nhtsa.gov/complaints/11535062

NHTSA Owner Complaint ODI 11535062

nhtsa.gov/complaints/11535062 · p. 1 · Applies to: 453

Manufacturer: Mercedes-Benz USA, LLC Components: ELECTRICAL SYSTEM Date filed: 07/28/2023 | Date of incident: 06/28/2023 Vehicles affected: - MY

Owner narrative: The car won't charge over 20% due probably a faulty manufacturer part of N83 high voltage control box. This could cause very serious electrical/battery issues if the high voltage box is faulty.

nhtsa.gov/complaints/11586101

NHTSA Owner Complaint ODI 11586101

nhtsa.gov/complaints/11586101 · p. 1 · Applies to: 453

Manufacturer: Mercedes-Benz USA, LLC Components: ELECTRICAL SYSTEM Date filed: 04/30/2024 | Date of incident: 04/26/2024 Vehicles affected: - MY

Owner narrative: Faulty n83 and Electric Drive Failure occured after charging @ public charging center. No longer under warranty but currently owe 5k on Mercedes lease . Mercedes dealership recommended replacement of both @ 16k I leased the car from them used . Time when lease began 19k

nhtsa.gov/complaints/11661091

NHTSA Owner Complaint ODI 11661091

nhtsa.gov/complaints/11661091 · p. 1 · Applies to: 453

Manufacturer: Mercedes-Benz USA, LLC Components: STEERING,SUSPENSION,WHEELS Date filed: 05/15/2025 | Date of incident: 07/04/2019 Vehicles affected: - MY

Owner narrative: What component or system failed or malfunctioned, and is it available for inspection upon request? Driver Side front wheel / maybe steering rack / etc. makes loud grinding / rubbing sound when making turn only when the weather's hot and humid and when the car has been running for about 20 min How was your safety or the safety of others put at risk? Noise / rubbing / grinding sound comes from the driver side front wheels or Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, Service center reproduced the sound and went two levels deep to try and ascertain the origin but to no avail. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? YES Has been inspected multiple times by different mechanics costing hundreds of dollars with still no diagnostic or remedy. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No lamps or warning lights prior to problem which was first heard / discovered around 2019

nhtsa.gov/complaints/11730040

NHTSA Owner Complaint ODI 11730040

nhtsa.gov/complaints/11730040 · p. 1 · Applies to: 453

Manufacturer: Mercedes-Benz USA, LLC Components: POWER TRAIN,ELECTRICAL SYSTEM,ENGINE Date filed: 04/08/2026 | Date of incident: 11/20/2025 Vehicles affected: - MY

Owner narrative: The Power Electronics Control Unit (ECM), Part No. A453-900-72-11, and the DC-to-DC converter have both failed, rendering this all-electric vehicle completely inoperable. There is no backup propulsion system. The DC-to-DC converter powers safety-critical systems including lighting, turn signals, and hazard flashers — its failure could cause loss of safety-critical functions while driving. Total repair estimate is $20,560.43. The manufacturer Mercedes-Benz USA denied warranty coverage using a Canadian warranty document for the wrong vehicle model. MBUSA has shut down the Smart warranty portal at the dealer level and their website returns no warranty data for Smart vehicles despite active warranty obligations. Smart exited the US market and MBUSA appears to have abandoned warranty support while warranties remain active.

nhtsa.gov/recalls/17V447000

NHTSA Recall Campaign 17V447000

nhtsa.gov/recalls/17V447000 · p. 1 · Applies to: 453

Manufacturer: Mercedes-Benz USA, LLC. Vehicles: smart fortwo model years 2017 Component: STEERING Report received: 14/07/2017 Park-it warning: False | Park-outside warning: False

Summary: Mercedes-Benz USA LLC. (MBUSA) is recalling certain 2017 smart fortwo and smart fortwo Cabriolet vehicles. Casting imperfections may result in the failure of the left front axle steering knuckle.

Consequence: Failure of the left front axle steering knuckle could affect vehicle control, increasing the risk of a crash.

Remedy: MBUSA will notify owners, and dealers will inspect the left front axle steering knuckle, replacing any from the affected batch, free of charge. The recall October 13, 2017. Owners may contact smart customer service at 1-877-496-3691.

Notes: Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

nhtsa.gov/recalls/17V448000

NHTSA Recall Campaign 17V448000

nhtsa.gov/recalls/17V448000 · p. 1 · Applies to: 453

Manufacturer: Mercedes-Benz USA, LLC. Vehicles: smart fortwo model years 2016 Component: PARKING BRAKE Report received: 16/07/2017 Park-it warning: False | Park-outside warning: False

Summary: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 smart fortwo vehicles. In these vehicles, the lock nut that secures the parking brake cable to the parking brake lever may loosen over time, resulting in increased parking brake lever travel before the parking brake engages.

Consequence: As the parking brake lever travel increases, the holding force may decrease to a point where the vehicle is no longer safely secured in all parking situations, allowing the vehicle to unexpectedly move when parked on a slope, increasing the risk of a crash.

Remedy: MBUSA will notify owners, and dealers will replace the parking brake cable lock nut, free of charge. The recall began September 20, 2017. Owners may contact smart customer service at 1-877-496-3691.

Notes: Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

nhtsa.gov/recalls/20V107000

NHTSA Recall Campaign 20V107000

nhtsa.gov/recalls/20V107000 · p. 1 · Applies to: 453

Manufacturer: Mercedes-Benz USA, LLC. Vehicles: smart fortwo model years 2019 Component: ELECTRICAL SYSTEM:12V/24V/48V BATTERY Report received: 24/02/2020 Park-it warning: False | Park-outside warning: False

Summary: Mercedes-Benz USA, LLC. (MBUSA) is recalling one 2019 Smart Fortwo Electric Drive vehicle. A welded joint within the high-voltage battery main cell conductors may detach and interrupt electrical contact, resulting in sudden battery failure. The detached weld may also cause an electrical arc which can ignite inside the battery cells.

Consequence: If the high-voltage battery fails, the vehicle may stall, increasing the risk of a crash. In addition, an electrical arc inside the battery increases the risk of a fire.

Remedy: MBUSA will notify the owner, and a dealer will replace the high-voltage battery, free of charge. The recall began May 8, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020030009.

Notes: Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.