TSB: MERCEDES-BENZ AMG CLS53, AMG E53, AMG E53 S, AMG EQS53, AMG GLE53, AMG GT53, CLS450, E450, EQS450, GLE450, GLS450, S450 (2019–2022)

Bulletin NCU-2022100005 — March 23, 2023

Bulletin Details

Bulletin IDNCU-2022100005
ManufacturerMERCEDES-BENZ
ModelsAMG CLS53, AMG E53, AMG E53 S, AMG EQS53, AMG GLE53, AMG GT53, CLS450, E450, EQS450, GLE450, GLS450, S450
Model Years2019–2022
Date IssuedMarch 23, 2023
Date Added to NHTSAApril 5, 2023
ComponentENGINE AND ENGINE COOLING
Vehicles Affected68 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that the affected vehicles may not meet current On Board Diagnostics (a??OBDa??) emissions specifications. Under certain conditions, the permanent OBD

Affected Vehicles

MakeModelYearComponent
MERCEDES-BENZ AMG E53 2022 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ AMG E53 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG EQS53 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG EQS53 2022 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ AMG GLE53 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLE53 2022 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ AMG GT53 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GT53 2022 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ CLS450 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ CLS450 2022 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ E450 2022 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ E450 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ EQS450 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ EQS450 2022 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ GLE450 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE450 2022 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ GLS450 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLS450 2022 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ AMG CLS53 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG CLS53 2021 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ AMG E53 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E53 2021 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ AMG E53 S 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E53 S 2021 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ AMG GLE53 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLE53 2021 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ AMG GT53 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GT53 2021 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ CLS450 2021 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ CLS450 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E450 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E450 2021 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ GLE450 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE450 2021 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ GLS450 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLS450 2021 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ AMG CLS53 2020 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ AMG CLS53 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E53 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E53 2020 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ AMG GT53 2020 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ AMG GT53 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ CLS450 2020 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ CLS450 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E450 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E450 2020 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ GLE450 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE450 2020 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ GLS450 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLS450 2020 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ S450 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ S450 2020 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ AMG CLS53 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG CLS53 2019 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ AMG E53 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E53 2019 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ AMG GT53 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GT53 2019 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ CLS450 2019 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ CLS450 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E450 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E450 2019 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ GLS450 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLS450 2019 060000 ENGINE AND ENGINE COOLING
MERCEDES-BENZ S450 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ S450 2019 060000 ENGINE AND ENGINE COOLING

Related MERCEDES-BENZ Recalls

CampaignModelYearComponentSummary
GLC 300 2026 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER... Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024-2026 AMG GT, C-Class...
E 450 4MATIC 2026 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER... Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024-2026 AMG GT, C-Class...
AMG GT43 2026 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER... Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024-2026 AMG GT, C-Class...
AMG GLC63 S E 4MATIC+ COUPE 2026 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER... Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024-2026 AMG GT, C-Class...
E 450 4MATIC 2024 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER... Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024-2026 AMG GT, C-Class...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized MERCEDES-BENZ dealer. Bring this bulletin ID (NCU-2022100005) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.