2022 model year · 0+ owner reports · Updated April 2026
According to Au7o's analysis of 0+ owner reports, the 2022 Mercedes-Benz SL-Class has 5 documented known issues, with 1 rated critical. The most serious is Rear-Axle Steering Control Unit/Software Fault Causing Warning Messages and Reduced Stability Functions ($0-$3,500 repair). Across all issues, repair costs range from $0 to $3,500. DIY maintenance guides at au7o.io.
On the 2022-2025 Mercedes-Benz SL-Class, the R232 SL uses active rear-axle steering, and multiple owners have reported warning messages, fault lights, and reduced driver-assistance or stability functionality tied to the rear steering system. Mercedes also issued recall actions for rear-axle steering control/software concerns on current AMG SL models because an incorrect control unit parameterization or software issue can affect rear-wheel steering behavior and trigger safety warnings. Owners typically describe sudden chassis or steering warnings, restricted driving modes, and dealer visits for software updates or control unit replacement.
Scan the rear-axle steering and chassis control modules for stored faults, then verify open recalls and current software levels through Mercedes dealer systems. Repairs generally involve control unit reprogramming, SCN coding, or replacement of the rear-axle steering actuator/control module if faults persist after updates. A wheel alignment and calibration procedure is typically required after hardware replacement.
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On the 2022-2025 Mercedes-Benz SL-Class, the R232 SL replaced older COMAND hardware with the newer MBUX architecture, and owners have reported software instability affecting the center display, digital cluster, backup camera, and ADAS-related menus. Complaints include black or rebooting screens, frozen camera views, unavailable assistance systems, and intermittent loss of vehicle settings. Mercedes has issued software updates and service guidance across MBUX-equipped models for these symptoms, and the SL shares that electronics architecture.
Check for software updates to the MBUX head unit, instrument cluster, camera modules, and central gateway before replacing hardware. If symptoms persist, dealers typically inspect module logs, update control units, and replace the display, camera, or head unit only when repeat faults are documented. Low battery voltage should be ruled out first because it can mimic infotainment failures.
Parts and tips from 0+ owners who fixed this issue
On the 2022-2025 Mercedes-Benz SL-Class, current-generation SL models are heavily dependent on stable 12V system voltage, and owner complaints across Mercedes AMG platforms show that weak batteries or power management faults can trigger a cascade of warnings, inoperative features, and occasional no-start conditions. On low-mileage SLs, owners have reported repeated battery discharge messages, random electrical faults, and dealer replacement of the main battery, battery sensor, or software updates to charging management. The issue is especially common on cars that sit for extended periods or are driven infrequently.
Perform a full battery state-of-health and parasitic draw test rather than simply clearing faults. Check the IBS/battery monitoring sensor, charging voltage, software updates for energy management, and confirm the correct AGM battery specification is installed and registered to the vehicle. If the battery has been deeply discharged multiple times, replacement is often the lasting fix.
Parts and tips from 0+ owners who fixed this issue
On the 2022-2025 Mercedes-Benz SL-Class, unlike earlier SL generations with a retractable hardtop, the R232 uses a fabric soft top, and owners have reported roof alignment issues, wind noise, incomplete latching messages, and water intrusion around the side windows or header seal. These complaints are typically seen on newer low-mileage cars and often require seal adjustment, window indexing calibration, or latch/roof mechanism inspection. Some owners also note creaks or rubbing noises from the top frame over uneven roads.
Inspect roof alignment, latch operation, seal compression, and side-window indexing using factory adjustment procedures. Water testing can help isolate whether the leak is from the header seal, side glass alignment, or drain routing. Repairs usually involve top adjustment, seal replacement, latch calibration, or replacement of misadjusted trim components.
Parts and tips from 0+ owners who fixed this issue
On the 2022-2025 Mercedes-Benz SL-Class M177 4.0L V8, owners of AMG SL 55 and SL 63 models have reported persistent front brake squeal, vibration, and faster-than-expected pad or rotor wear, especially on cars driven lightly or in urban use. High-performance AMG brake compounds are known to generate noise, but repeated owner reports indicate some vehicles require resurfacing, pad replacement, or updated hardware/shims earlier than expected. Complaints often center on loud squeal at low speeds and noticeable brake dust.
Inspect rotor thickness variation, pad glazing, and caliper hardware condition. Dealers commonly perform a brake clean-and-bed procedure first, followed by pad/shim replacement or rotor replacement if there is measurable runout or scoring. Using the correct AMG-approved pad compound and proper bedding is important to prevent recurrence.
Parts and tips from 0+ owners who fixed this issue
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According to Au7o's analysis of 0+ owner reports, the 2022-2022 Mercedes-Benz SL-Class has 5 documented issues. The most frequently reported are: Rear-Axle Steering Control Unit/Software Fault Causing Warning Messages and Reduced Stability Functions, MBUX/Instrument Cluster Software Glitches Causing Camera, Display, and Driver-Assist Malfunctions, Convertible Soft-Top Alignment, Latch, and Water Leak Problems on R232 Roadsters. Of these, 1 is rated critical and should be addressed promptly.
The 2022-2022 Mercedes-Benz SL-Class has 5 known issues documented across 0+ owner reports. 1 issue is rated critical: Rear-Axle Steering Control Unit/Software Fault Causing Warning Messages and Reduced Stability Functions. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
Repair costs for known Mercedes-Benz SL-Class issues range from $0 to $3,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Rear-Axle Steering Control Unit/Software Fault Causing Warning Messages and Reduced Stability Functions, typically costs $0-$3,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
The R232 SL uses active rear-axle steering, and multiple owners have reported warning messages, fault lights, and reduced driver-assistance or stability functionality tied to the rear steering system. Mercedes also issued recall actions for rear-axle steering control/software con… Repairs typically run $0-$3,500. Severity: high.
The R232 SL replaced older COMAND hardware with the newer MBUX architecture, and owners have reported software instability affecting the center display, digital cluster, backup camera, and ADAS-related menus. Complaints include black or rebooting screens, frozen camera views, una… Repairs typically run $0-$2,500. Severity: medium.
Unlike earlier SL generations with a retractable hardtop, the R232 uses a fabric soft top, and owners have reported roof alignment issues, wind noise, incomplete latching messages, and water intrusion around the side windows or header seal. These complaints are typically seen on… Repairs typically run $200-$2,500. Severity: medium.
Current-generation SL models are heavily dependent on stable 12V system voltage, and owner complaints across Mercedes AMG platforms show that weak batteries or power management faults can trigger a cascade of warnings, inoperative features, and occasional no-start conditions. On… Repairs typically run $250-$1,200. Severity: medium.
Owners of AMG SL 55 and SL 63 models have reported persistent front brake squeal, vibration, and faster-than-expected pad or rotor wear, especially on cars driven lightly or in urban use. High-performance AMG brake compounds are known to generate noise, but repeated owner reports… Repairs typically run $400-$2,200. 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.
