2025 Mercedes-Benz GLA250 Service and Repair Manual

This factory service and repair manual for the 2025 Mercedes-Benz GLA250 covers the compact sport utility in Base and 4Matic trims: Base drives the front wheels and 4Matic adds all-wheel drive. Both use a turbocharged 2.0-liter inline-four with double overhead camshafts and 48-volt mild hybrid assistance, so alongside the engine, transmission and chassis procedures the manual gives wiring diagrams and diagnostic steps for the mild hybrid starter-generator and the electrical system around it.

Engines covered

• 2.0L inline-four mild hybrid — DOHC, turbocharged, gasoline

Body styles covered

• 4-door sport utility

Trims covered

• Base
• 4Matic

Known issues on the 2025 GLA250. NHTSA records one recall for the 2025 GLA250: the micro-switch in the driver's door lock can corrode and fail to detect an open door, so the automatic parking brake and Auto-Park may not engage and the vehicle could roll away; dealers replace the driver's door lock (campaign 26V481000). Three owner complaints are recorded, citing the service brakes, the powertrain and the electrical system. Door lock, parking brake and mild hybrid circuits are covered with wiring diagrams.