KNOWN FAULTS · Mercedes-Benz

Mercedes-Benz CLA (C178) CLA 200 / 220 Hybrid common problems.

2025–2026 · Hybrid

Sources are not verified in real time and no entry confirms that your car is affected.

By what you notice

Jerking or losing power1 sheet

Noises or vibration1 sheet

48 V wiring and driver-assistance software on the new CLA (C178)Electrical and electronic systems

Engine / equipment: 2025 Mercedes CLA (hybrid and electric)
Period mentioned: 2025
Symptoms: On hybrids, risk of overheating, fire or electric shock from the 48 V wiring; assistance functions that switch off without warning the driver properly.
Possible cause described: Mercedes recalled 1,682 CLA hybrids built from 17/11 to 19/12/2025 for the 48 V wiring (poorly protected contacts). In addition, the KBA flagged 3,197 CLAs on which some assistance functions can switch off without enough warning: new software is installed.
Check for the garage: Check by VIN at the dealer that the campaign has been done.
Cost cited in the source: Free under the recall.A rough figure from the original database, not an up-to-date quote.

Applies if: US bulletin (LI27.10-P-080851) for Mercedes models with the 7G-DCT, 8G-DCT or 8F-eDCT gearbox; in Europe, ask the dealer.

Slight jerk or clunk when accelerating again with the dual-clutch gearbox, which is normal (Mercedes 7G-DCT, 8G-DCT and 8F-eDCT)Gearbox

Engine / equipment: Mercedes-Benz with 7G-DCT (724.0), 8G-DCT (724.1) or 8F-eDCT (724.3) dual-clutch gearbox
Period mentioned: 2013–2025 (US model years)
Symptoms: Now and then a brief jerk, clunk or thud from the gearbox, mostly when going from coasting to pressing the accelerator (for example, when a traffic light turns green as you approach).
Possible cause described: Mercedes explains that dual-clutch gearboxes shift more abruptly because they pull away and change gear with real clutches, and that this slight jerk is a normal technical characteristic. If diagnosis finds no faults, no parts need replacing (information LI27.10-P-080851).
Check for the garage: Ask the workshop to run the gearbox diagnosis; if no fault shows up, nothing needs replacing. It is more noticeable in the S, S+ and M modes.
Cost cited in the source: No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.