The Used Car Index

2020 Mercedes-Benz EQC 400 problems

No complaints are listed for the 2020 Mercedes-Benz EQC 400. NHTSA's API and bulk file list none in this build.

Data build 2026-10-09.

NHTSA lists this vehicle as MERCEDES-BENZ EQC 400.

At a glance

Complaints
0
With crash
0
With fire
0
With injury (complaints)
0
Injuries
0
Deaths
0
Recalls
0
Do not drive recalls
0
Park outside recalls
0
Recall potential units (maximum)
Unavailable
Investigations
0
Open investigations
0
Manufacturer communications
48

Complaints per 100k sold unavailable. No sales source is available for this record.

Model-generated complaint tags: No complaints are listed for tagging.

Recalls

See new recalls and investigations this week.

0 recalls.

Investigations

0 investigations; 0 open.

Manufacturer communications

48 manufacturer communications.

Communications by system
SystemCount
ELECTRICAL SYSTEM13
EQUIPMENT9
EXTERIOR LIGHTING7
STEERING5
STRUCTURE5
POWER TRAIN4
ENGINE AND ENGINE COOLING3
EQUIPMENT ADAPTIVE/MOBILITY2

11019018

Date: 2025-05-21. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.

Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (and vice versa). Note: Sound file in attachment Cause If the complaint is eliminated by experimentally loosening the out

11017496

Date: 2025-04-28. Type: Service Bulletin/Repair Instructions. Systems: EXTERIOR LIGHTING.

Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. Remedy NOTE: If a pressure compensation diaphragm is fitted in the housing cover

11017500

Date: 2025-04-28. Type: Service Bulletin/Repair Instructions. Systems: EXTERIOR LIGHTING.

Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A leak test must be performed to determine i

11016159

Date: 2025-03-28. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

Complaint MBUX head unit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or (549+U19). Cause Head unit software variant. Remedy For all chassis use Xentry to update head unit (A26/17). Target boot software number should be either: a ? 247 904 6600 (E905.4) OR

11015813

Date: 2025-03-18. Type: Service Bulletin/Repair Instructions. Systems: BACK OVER PREVENTION, ELECTRICAL SYSTEM.

Complaint MBUX headunit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or (549+U19). Cause Under analysis. Remedy For chassis 118, 167, 177, 213, 238, 243, 247, 253, and 293 use Xentry to update headunit (A26/17). Target software number is 247 904 6600 (E905

11015574

Date: 2025-03-11. Type: Service Bulletin/Repair Instructions. Systems: EXTERIOR LIGHTING.

Complaint The message "Device detected at diagnostics connection See Ownera s Manual" appears sporadically in the multifunction display of the instrument cluster while driving (see picture in attachment). Cause On vehicles with HERMES 3.0 currently, a ? A2389015700 a ? A2389015800 a ? A2389018400 a

11015617

Date: 2025-03-10. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, STRUCTURE.

Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Remedy As of the 6th generation, the vehicle key can be recoded so that the tailgate no longer opens as a result

11015640

Date: 2025-03-05. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during a call. It becomes increasingly difficult to understand as the speed rises. Cause A. Seating of the microphones in the h

11013185

Date: 2025-01-24. Type: Service Bulletin/Repair Instructions. Systems: STRUCTURE.

Complaint Paint damage on door paneling in area of door handle (see picture 1). Cause Alignment of door handle bearing bracket is not correct. Remedy 1. Paint the affected area of the door paneling using the spot repair procedure in accordance with the manufacturer's specifications. 2. Replace the d

11013192

Date: 2025-01-24. Type: Service Bulletin/Repair Instructions. Systems: STRUCTURE.

Complaint Fuel door may require several attempts to open. Please note that if the complaint "Fuel filler flap not opening" occurs, it is important to check the fuel filler flap before replacing the central locking actuator. For gasoline hybrid vehicles where the fuel filler flap fails to open or doe

Notes on this record

  • Complaints from the API and bulk file are merged and deduplicated by ODI number; the API alone misses records.
  • System and subsystem counts are numbers of distinct complaints, recalls or communications that name them. One record can name several systems, so shares across systems can add to more than 100 percent; a single share never exceeds 100 percent.
  • Recalls are counted once per campaign, investigations once per action and manufacturer communications once per NHTSA id, even when NHTSA lists several model names for the same record.
  • A sales denominator is a calendar-year proxy, not the population of vehicles still in use. Rates are copied from verified pipeline output.
  • NHTSA's complaints API and bulk file list no complaint for this make, model and model year in this data build.

Other names NHTSA uses

None listed.

Matched NHTSA models

Matched labels and complaints
NHTSA model labelComplaints
EQC 4000

Same model, other years

All model years | All Mercedes-Benz models

Other Mercedes-Benz models, 2020

Sources

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