2020 Mercedes-Benz Glc 300 engine problems

The 2020 Mercedes-Benz Glc 300 has 20 engine complaints filed with NHTSA — 23% of the year's total, and up sharply from the prior model year.

Engine complaints

23%

Share of year

Crash-involved

Related recalls

Engine complaints by year

Glc 300 engine complaints by model year. Red bars are years to avoid.

Related recalls

20V364000EngineJune 22, 2020 · 90 units

Defect

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 C300, E350, and GLC300 vehicles equipped with turbocharged 4-cylinder gasoline engines. The screws that retain the turbocharger oil feed and return lines may not have been properly tightened, possibly resulting in an oil leak.

Consequence

An oil leak in the presence of an ignition source such as hot engine or exhaust components can increase the risk of a fire.

Remedy

MBUSA will notify owners, and dealers will inspect the turbocharger oil lines and tighten them as necessary, free of charge. The recall began August 17, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020070017.

What owners report

“The check engine light illuminated, I took the car to the dealer I bought. They said the cylinder head on the engine needs to be replaced, when I check the internet it seems it is a known issue for Mercedes X253 but there is not a recall program. I bought the car from the dealer, and put on 5k…”
Complaint filed with NHTSA · Engine · February 4, 2025

Common questions

How many engine complaints does the 2020 Mercedes-Benz Glc 300 have?

NHTSA has 20 complaints about the 2020 Mercedes-Benz Glc 300 engine — 23% of all complaints filed for that model year.

Are there recalls for the 2020 Mercedes-Benz Glc 300 engine?

Yes — 1 NHTSA recall campaign for this model year is tied to the engine: 20V364000.

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.