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X253 / X254 · SUV

2018 Mercedes-Benz GLC-Class

Common problems & what to know before you buy

Before you message the seller, know the documented failure patterns, repair cost exposure, and risk level for the 2018 Mercedes-Benz GLC-Class.

Common problems

What to watch for on the 2018 Mercedes-Benz GLC-Class

caution·2.0L turbo (M274)

Camshaft Adjuster Magnet Oil Leak

The camshaft adjuster solenoids (magnets) on the front of the engine leak oil, and the oil can wick down the wiring toward the engine computer.

Typical repair cost
$300 – $800

Which of these apply to your 2018 GLC-Class?

Your guide shows which apply to the exact car, and what to ask the seller.

Owner complaints

What 99 owners reported

Engine19
Electrical system14
Power train10
Structure8

Source: NHTSA

Specifications

2018 Mercedes-Benz GLC-Class at a glance

Trims
AMG GLC43 4maticAMG GLC43 4matic CoupeAMG GLC63 4maticAMG GLC63 4matic CoupeAMG GLC63 S 4maticAMG GLC63 S 4matic CoupeGLC300GLC300 4matic
Engine
3.0L 6-Cylinder Turbo, 4.0L 8-Cylinder Turbo, 2.0L 4-Cylinder Turbo, 2.0L 4-Cylinder Turbo Plug-In Hybrid
Transmission
Automatic 9-spd, Automatic 7-spd
Drivetrain
AWD, RWD
Fuel
Gasoline, Plug-In Hybrid
Body style
SUV
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FAQ

Frequently asked questions

What are the common problems with the 2018 Mercedes-Benz GLC-Class?

Owners have filed 99 complaints about the 2018 Mercedes-Benz GLC-Class with NHTSA, most often about the engine. No recall campaigns are on file for this model year. Known problems on its engines include camshaft adjuster magnet oil leak. Squeezed's free research-backed buyer guide cross-references these against documented failure patterns and mileage-stage risks, sorted by severity, in about a minute.

Is the 2018 Mercedes-Benz GLC-Class reliable?

Reliability depends heavily on the specific configuration and how the car was maintained. Generate a Squeezed buyer guide for this exact vehicle to see a reliability snapshot, repair-cost exposure, and the questions to ask the seller before you buy.

Should I still get a pre-purchase inspection on a 2018 Mercedes-Benz GLC-Class?

Always. A Squeezed buyer guide is the triage step before the inspection: it shows you the documented failure patterns and what to check so you can decide which 2018 Mercedes-Benz GLC-Class listings are even worth a mechanic's time, then walk into the PPI knowing exactly what to look for.

Squeezed is a buyer guide based on public data and industry patterns, not a mechanical inspection. Always get a professional pre-purchase inspection before you buy.