2021 Mercedes-Benz Cla

The CLA 250's 8-speed dual-clutch transmission is the most-reported issue for the 2022 CLA. Owners describe lurching forward when pulling away from stops, harsh 1-2 shifts at low speed, and hesitation when the driver modulates between gas and brake in traffic. The dry dual-clutch design prioritizes efficiency over smoothness, and the clutch engagement point can become inconsistent over time.

Dealer performs a DCT clutch adaptation and TCU software update. The clutch touch point is recalibrated using XENTRY diagnostics. If the clutch discs are worn or glazed, the dual-clutch assembly must be replaced. Reference TSB LI27.00-P-068792 for DCT drivability diagnosis.

The 2.0L M282 turbocharged engine in the CLA 250 can consume oil at a rate exceeding Mercedes-Benz's stated acceptable limit of 1 quart per 1,500 miles. Some owners report consuming 1 quart every 3,000-5,000 miles, which is noticeable between the 10,000-mile oil change intervals. Symptoms include low oil level warnings, blue exhaust smoke on startup, and gradually declining oil pressure readings.

Dealer performs an official oil consumption test over 3,000 miles to quantify consumption. If consumption exceeds 0.5L per 1,000 km, piston ring replacement or short block replacement is authorized under warranty. Using Mercedes-Benz specification 229.71 oil and avoiding extended idle periods helps reduce consumption.

The CLA's MBUX touchscreen display can develop delamination where the touch-sensitive layer separates from the LCD panel, creating visible bubbles or cloudiness, particularly around the edges. Additionally, touch dead zones develop where inputs are not registered. The issue is accelerated by exposure to direct sunlight and high cabin temperatures in parked vehicles.

Dealer replaces the MBUX display module. The replacement unit should be the latest hardware revision with improved bonding adhesive. Mercedes-Benz has extended the display warranty to 4 years on affected models. Reference Service Campaign 2021110002 for display delamination.

Owners of the 2022 CLA report a creaking, popping, or groaning noise from the front suspension when turning the steering wheel at low speeds or driving over speed bumps. The strut mount bearing (also called the strut top bearing) wears prematurely, creating play in the strut assembly. The noise is more prominent in cold weather and tends to worsen over time.

Dealer replaces the front strut mount bearings on both sides. The strut mounts should be replaced with updated parts that feature improved bearing material. A four-wheel alignment should be performed after the repair. Reference TSB LI32.20-P-066387 for front suspension noise diagnosis.

The 64-color ambient lighting system in the CLA can experience partial failures where individual LED segments stop working, display incorrect colors, or flicker. The fiber optic and LED strips along the dashboard, door panels, and center console are susceptible to poor solder connections. The issue renders the premium ambient lighting feature incomplete and unsightly.

Dealer replaces the affected ambient lighting LED strip or fiber optic module. The trim panel must be removed carefully to access the lighting components. In some cases, the ambient lighting control module requires a software update or replacement to restore proper color calibration.