Mercedes›A250›2021›Overview/mercedes/a250/2021/base/

2021 Mercedes A250

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2021 A250.

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

The firing order is 1-3-4-2.

Crankshaft Pulley and/or Damper Bolts	Step 1 148.0 ft-lbs, Step 2: 180° ft-lbs
Cylinder Head Instructions	Use new bolts only.
Intake Manifold to Engine Bolts	10.3 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	11.0 ft-lbs

Cylinder Firing Order

1-3-4-2

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

Catalyst system efficiency below threshold — Bank 1

Random / multiple cylinder misfire detected

System too lean — Bank 1

Evaporative emission system leak detected — large leak

Coolant thermostat below regulating temperature

Evaporative emission system leak detected — small leak

Decode factory build data for a specific vehicle by VIN.

VIN

Decode a VIN to confirm the transmission and build data for a specific A250. OEM

Build data

Plant, GVWR class, engine and body data for any 17-character VIN.

Recalls

Check open recall campaigns against a specific vehicle by VIN.

Cross-vehicle references for the kinds of data on this page.