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Service bulletin LI20.20-P-073274

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10199660
Published by NHTSA2021-08-04
Manufacturer's numberLI20.20-P-073274
Manufacturer's date2021-07-08
NHTSA componentEQUIPMENT; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:ENGINE COOLANT HOSES AND FITTINGS; ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY

NHTSA's summary

Coolant warning in instrument cluster - Leak in coolant line

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Equipment and accessories, Glass, wipers and mirrors, Heating and air conditioning, Cooling system, Radiator

Vehicles listed
MERCEDES-BENZ A 2202020
MERCEDES-BENZ AMG A352020
MERCEDES-BENZ AMG A452020
MERCEDES-BENZ AMG C432020
MERCEDES-BENZ AMG C632020
MERCEDES-BENZ AMG C63 S2020
MERCEDES-BENZ AMG CLA352020
MERCEDES-BENZ AMG CLA452020
MERCEDES-BENZ AMG CLS532020
MERCEDES-BENZ AMG E532020
MERCEDES-BENZ AMG E632020
MERCEDES-BENZ AMG E63S2020
MERCEDES-BENZ AMG G632020
MERCEDES-BENZ AMG GLA452020
MERCEDES-BENZ AMG GLB352020
MERCEDES-BENZ AMG GLC432020
MERCEDES-BENZ AMG GLC632020
MERCEDES-BENZ AMG GLC63 S2020
MERCEDES-BENZ AMG GLE432020
MERCEDES-BENZ AMG GLE632020
MERCEDES-BENZ AMG GLS632020
MERCEDES-BENZ AMG GT2020
MERCEDES-BENZ AMG GT 632020 (the catalog's model; the bulletin names a series or trim of it)
MERCEDES-BENZ AMG GT C2020 (the catalog's model; the bulletin names a series or trim of it)
MERCEDES-BENZ AMG GT R2020 (the catalog's model; the bulletin names a series or trim of it)
MERCEDES-BENZ AMG GT S2020 (the catalog's model; the bulletin names a series or trim of it)
MERCEDES-BENZ AMG GT432020 (the catalog's model; the bulletin names a series or trim of it)
MERCEDES-BENZ AMG GT532020 (the catalog's model; the bulletin names a series or trim of it)
MERCEDES-BENZ AMG GT632020 (the catalog's model; the bulletin names a series or trim of it)
MERCEDES-BENZ AMG GT63S2020 (the catalog's model; the bulletin names a series or trim of it)
MERCEDES-BENZ AMG S632020
MERCEDES-BENZ AMG S652020
MERCEDES-BENZ AMG SL632020
MERCEDES-BENZ AMG SLC432020
MERCEDES-BENZ C 3002020
MERCEDES-BENZ C 3502020
MERCEDES-BENZ C 350 E2020
MERCEDES-BENZ CLA 2502020
MERCEDES-BENZ CLS 4502020
MERCEDES-BENZ E 3502020
MERCEDES-BENZ E 4502020
MERCEDES-BENZ E63 AMG2020
MERCEDES-BENZ EQC 4002020
MERCEDES-BENZ G 5502020
MERCEDES-BENZ G632020
MERCEDES-BENZ GLA 2502020
MERCEDES-BENZ GLB 2002020
MERCEDES-BENZ GLB 2502020
MERCEDES-BENZ GLC 3002020
MERCEDES-BENZ GLC 3502020
MERCEDES-BENZ GLC 350 E2020
MERCEDES-BENZ GLE 3502020
MERCEDES-BENZ GLE 350 E2020
MERCEDES-BENZ GLE 4502020
MERCEDES-BENZ GLE 5802020
MERCEDES-BENZ GLS 4502020
MERCEDES-BENZ GLS 580 4MATIC2020
MERCEDES-BENZ METRIS2020
MERCEDES-BENZ S 4502020
MERCEDES-BENZ S 5502020
MERCEDES-BENZ S 5602020
MERCEDES-BENZ S 560 E2020
MERCEDES-BENZ SL 4502020
MERCEDES-BENZ SL 5502020
MERCEDES-BENZ SLC 3002020
MERCEDES-BENZ SPRINTER (VS30)2020 (the catalog's model; the bulletin names a series or trim of it)
MERCEDES-BENZ SPRINTER 15002020 (the catalog's model; the bulletin names a series or trim of it)
MERCEDES-BENZ SPRINTER 25002020 (the catalog's model; the bulletin names a series or trim of it)
MERCEDES-BENZ SPRINTER 35002020 (the catalog's model; the bulletin names a series or trim of it)
MERCEDES-BENZ SPRINTER 45002020 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.