According to Au7o's analysis of 1,380+ owner reports, the 2021 Mercedes-Benz Metris has 2 documented known issues. No issues are rated critical, indicating generally reliable ownership. The most commonly reported issue is Power Sliding Door Cable Failure with 820 owner reports. Across all issues, repair costs range from $300 to $3,000. DIY maintenance guides at au7o.io.
On the 2016-2023 Mercedes-Benz Metris 2.0L Turbo I4, the power sliding door cable on the Metris is prone to fraying and snapping, leaving the door stuck open or closed. This is a common fleet complaint and typically occurs between 40,000-80,000 miles due to repeated cycling and poor cable routing.
Warning message on dash for sliding door malfunction
How to Fix
Replace the sliding door cable assembly. Use updated Mercedes part to reduce recurrence. Lubricate the cable tracks every 10,000 miles with dry silicone spray to extend cable life.
What Owners Are Using
Parts and tips from 820+ owners who fixed this issue
TipLubricate the sliding door track and cable guides with dry silicone spray every 10,000 miles. Avoid slamming the door manually when the power function is engaged β it stresses the cable.
High Confidence820 reportsLast reported by owners Sep 2025Reviewed Mar 2026
Community Reported
560 owners
On the 2016-2023 Mercedes-Benz Metris, the 7G-Tronic automatic transmission in the Metris exhibits harsh shifts, particularly the 2-3 and 4-5 upshifts, along with delayed engagement when shifting from park to drive. The issue worsens as the transmission fluid ages and the valve body accumulates debris from clutch material.
Perform a full transmission fluid and filter change using MB-approved 236.14 specification fluid. If harsh shifting persists, the valve body may need replacement or rebuild. A transmission software update from Mercedes can recalibrate shift points and improve shift quality.
What Owners Are Using
Parts and tips from 560+ owners who fixed this issue
TipChange transmission fluid every 40,000 miles rather than the factory "lifetime" interval. Use only MB 236.14 spec fluid. This alone resolves the harsh shifting in most cases.
High Confidence560 reportsLast reported by owners Aug 2025Reviewed Mar 2026
β οΈNHTSA Recalls16 recalls
SEAT BELTS:REAR/OTHER:RETRACTOR
Daimler Vans USA, LLC (DVUSA) is recalling certain 2021 Mercedes-Benz Sprinter, Metris, and Freightliner Sprinter vehicles equipped with Automatic Locking Retractor (ALR) seat belt assemblies. The seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these assemblies fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Campaign #21V51300007/07/2021
SEATS
Daimler Vans USA, LLC (DVUSA) is recalling certain 2021 Mercedes-Benz Metris vehicles equipped with an adjustable front passenger seat. The front passenger seat frame base may not have been welded properly.
Daimler Vans USA, LLC (DVUSA) is recalling certain 2020-2023 Mercedes-Benz Metris vehicles. The electrical connections for the infotainment system may not be properly secured, which can cause the rearview camera image not to display. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
Campaign #25V46300011/07/2025
FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
Daimler Vans USA, LLC (DVUSA) is recalling certain 2017-2022 Mercedes-Benz Metris vehicles. The connection of the upper and lower fuel hoses to the engine may be insecure, which can result in a fuel leak.
Campaign #22V13400008/03/2022
SERVICE BRAKES, HYDRAULIC:FLUID
Daimler Vans USA, LLC (DVUSA) is recalling certain 2016-2021 Mercedes-Benz Metris vehicles. The brake fluid reservoir may be incorrectly mounted, which can allow it to detach.
What are the most common Mercedes-Benz Metris problems?
According to Au7o's analysis of 1,380+ owner reports, the 2021-2021 Mercedes-Benz Metris has 2 documented issues. The most frequently reported are: Power Sliding Door Cable Failure, Harsh Shifting and Delayed Engagement in 7G-Tronic Transmission. None are rated critical, but regular maintenance is recommended.
Is the Mercedes-Benz Metris reliable?
The 2021-2021 Mercedes-Benz Metris has 2 known issues documented across 1,380+ owner reports. No issues are rated critical, suggesting generally good reliability. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Mercedes-Benz Metris problems?
Repair costs for known Mercedes-Benz Metris issues range from $300 to $3,000, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2016-2023 Mercedes-Benz Metris Power Sliding Door Cable Failure?
The power sliding door cable on the Metris is prone to fraying and snapping, leaving the door stuck open or closed. This is a common fleet complaint and typically occurs between 40,000-80,000 miles due to repeated cycling and poor cable routing. Repairs typically run $600-$1,400. Severity: medium.
What is the 2016-2023 Mercedes-Benz Metris Harsh Shifting and Delayed Engagement in 7G-Tronic Transmission?
The 7G-Tronic automatic transmission in the Metris exhibits harsh shifts, particularly the 2-3 and 4-5 upshifts, along with delayed engagement when shifting from park to drive. The issue worsens as the transmission fluid ages and the valve body accumulates debris from clutch mate⦠Repairs typically run $300-$3,000. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.