KNOWN FAULTS · Mercedes-Benz

Mercedes-Benz Clase E (W214) E 300 e / 400 e common problems.

2023–2026 · Plug-in hybrid

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

1 known fault with sources

Applies if: Same M254 engine with ISG as the C-Class W206; ask the dealer whether your engine has had the fix.

Camshaft adjusters on the M254 petrol engineValve timing

Engine / equipment: 1.5 and 2.0 four-cylinder M254 petrol with 48 V integrated starter-generator (ISG): C-Class W206, GLC X254, E-Class W214 and CLE
Period mentioned: 2021–2025 (mainly 2021–2022)
Symptoms: Rattling on start-up, the engine warning light and camshaft-timing fault codes; in serious cases, engine damage.
Possible cause described: A German used-car guide flags the M254 camshaft adjusters as something to check up to model year 2025; according to Motor-Talk users, a breaking oil strainer causes the damage, mainly on 2021 and 2022 cars. From 2025 no problems are reported.
Check for the garage: Listen to a cold start; read the engine fault memory; ask for the service history with on-time oil changes and ask the dealer what fix exists for the adjusters.
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.