NHTSA Complaint #11547873 — 2021 MERCEDES-BENZ GLA 250

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	11547873
Vehicle	2021 MERCEDES-BENZ GLA 250
Component	ENGINE
Date of Incident	October 24, 2022
Date Filed	October 2, 2023
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MA

Consumer Description

Engine misfired in operation requiring an emergency stop while on a mountain road. Severe check engine light turned on (Mercedes has a two stage check engine light). Vehicle was parked for 20 minutes and battery was disconnected. This appeared to fix the issue. Vehicle was brought to dealer. Dealer stated the cylinder head for early 2021 GLA 250 engines had a casting flaw that result in hot gases escaping and damaging engine. Engine and turbo rebuilt under warranty at 17000 miles.

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