2026 Mercedes-Benz CLE 450 4matic Cabriolet: common problems
The maker issued 66 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 66
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 37 |
| Structure | 0 | 0 | 8 |
| Visibility | 0 | 0 | 7 |
| Steering | 0 | 0 | 6 |
| Suspension | 0 | 0 | 4 |
| Powertrain | 0 | 0 | 3 |
| Backover prevention | 0 | 0 | 2 |
| Engine | 0 | 0 | 2 |
| Exterior lighting | 0 | 0 | 2 |
| Seats | 0 | 0 | 2 |
| Service brakes | 0 | 0 | 2 |
| Air bags | 0 | 0 | 1 |
| Lane departure | 0 | 0 | 1 |
| Other | 0 | 0 | 3 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Visibility. Wipers, mirrors, defrosters, cracked glass.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Complaint Clanking noise from the area of the speakers in the doors
Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and…
- Complaint Slight creaking noises when steering
Cause Noises may come from one or more sleeves of the horn contact plate. Remedy Remove the horn contact plate and check the sleeves for noise; see attached video. If necessary, apply lubricant to the sleeves.
- Complaint Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE
Although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. Cause Although the cause of the vibration…
- Complaint Sporadic warning message in instrument cluster "Engine oil pressure, stop switch off vehicle"…
Complaint Sporadic warning message in instrument cluster "Engine oil pressure, stop switch off vehicle" (or similar) is shown in red on vehicles with low mileage. Cause Directional control valve may stick. Remedy 1‑…
- Complaint Whining / humming noises (described as foghorn‑like) from the drivetrain in the rear axle area…
Complaint Whining / humming noises (described as foghorn‑like) from the drivetrain in the rear axle area during cornering. (figure 1) On the above‑mentioned vehicles with a mileage up to 15,000 km (about 9,300 mi)…
- Complaint Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious…
Complaint Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious cause usually with one of the following scenarios: • Flashing without a speed limit ("‑ ‑"). • Flashing when…
- Complaint When using the one‑touch (automatic) window closing function on one or both front door windows,…
Complaint When using the one‑touch (automatic) window closing function on one or both front door windows, the customer may report one of the following concerns: • The window begins closing, then reverses direction…
- Complaint The Apple Music app is no longer available in the head unit apps menu after updating the…
Complaint The Apple Music app is no longer available in the head unit apps menu after updating the software of the (A26/17 ‑ MBUX multimedia system + instrument cluster (head unit)) to E333.8 / A236 904 19 00. Cause…
- Complaint Tailgate opens unintentionally
Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. EXAMPLE: when stored in trouser pocket, handbag etc. Remedy As of the 6th generation, the vehicle key can be recoded so…
- Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed,…
Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline for all dealer returns is no later than…
- Complaint 1
General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active Parking and Parking Assist Inoperative" on Instrument Cluster 5. Cameras 6. Other Park Topics. Cause Various root…
- Complaint DAB, FM, or SDARS radio reception is limited, only a few stations are found
Cause The firmware installation was incomplete. Remedy In the A26/17 control unit "MBUX multimedia system" (head unit), use XENTRY to carry out the special process "All Modules"; this will reinstall the firmware…
NHTSA lists 66 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2026 Mercedes-Benz CLE 450 4matic Cabriolet?
There are no owner complaints in the NHTSA data for this year; the data comes from 66 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2026 Mercedes-Benz CLE 450 4matic Cabriolet?
NHTSA lists 66 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2026 Mercedes-Benz CLE 450 4matic Cabriolet from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2026 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.