NHTSA Service Bulletin 11019636: 2020-2024 Mercedes-benz Amg Cla45
Official manufacturer communication context for 2020-2024 Mercedes-benz Amg Cla45, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.
Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.
Complaint Noises from the rear axle differential, particularly when cornering slowly Cause Small quantity of water entering into oil of multiplate clutches at right and left Remedy Carry out oil change of clutch oil on left and right sides (Shell TF0870B). DO NOT change the gear set oil (at center), since this is a long-life oil that is unconnected to the complaint Return the vehicle to the customer and inform them that they must drive a distance of at least 250 km (155mi); The complaint should then be rectified. If the problem occurs again, create TIPS case and submit it to the Powertrain inbox with the following information: Create video in which the noise can be heard, with view of the instrument cluster (with speed, engine speed, drive program, gear). Quick test with fault freeze frame data EEPROM data from transmission control unit Y3/14 (dual-clutch transmission) AND all-wheel drive (AWD) control units N15/20 and N15/21
What this bulletin may mean before buying
Treat this as service research, not a verdict on one car. Before you buy, compare this communication with official recall campaigns, model-level owner complaint patterns, and the exact vehicle’s VIN-decoded specifications. A bulletin can help you ask a seller or dealer sharper questions about software updates, known repairs, warranty extensions and service history.
Affected products listed in this communication
Buyer checklist
- Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
- Check recall campaign pages for safety actions that may require dealer repair.
- Compare this bulletin with common problem pages for the same model and component area.
- Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
- Use the used-car buying checklist and get an independent inspection.
Frequently asked questions
What is NHTSA service bulletin 11019636?
Complaint Noises from the rear axle differential, particularly when cornering slowly Cause Small quantity of water entering into oil of multiplate clutches at right and left Remedy Carry out oil change of clutch oil on left and right sides (Shell TF0870B). DO NOT change the gear set oil (at center), since this is a long-life oil that is unconnected to the complaint Return the vehicle to the customer and inform them.
Is a service bulletin the same as a recall?
No. A recall is a safety campaign with a required remedy for affected VINs. A service bulletin or manufacturer communication usually describes diagnostic, repair, software, warranty or service information.
How should a used-car buyer use this bulletin?
Use it as a research signal. Compare it with recalls, owner complaints, service records, a VIN report and an independent inspection before buying.
Check the exact VIN before you buy
Model-level pages show public safety patterns. A full VIN report helps confirm the exact vehicle, decoded specs, recall applicability and buyer checks.
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