Mercedes Check Engine Light — What It Means & What to Do

A check engine light on your Mercedes can mean many things — from simple to serious. Here are the most common reasons we see:

1. Ignition Coil or Spark Plug Failure

Symptoms:

• Rough running
• Hesitation
• Startup shaking

2. Turbo/Boost Issues

Common in 2.0L and AMG models:

• Charge pipe leaks
• Wastegate issues

3. Sensor Failures

Examples:

• MAF
• O2 sensors
• Cam/Crank sensors

4. EVAP System Leaks

A very common cause.

5. Fuel Trim or Airflow Issues

We check intake leaks and fuel delivery.

6. Multiple Codes From Electrical Problems

Mercedes cars are electronically complex — we specialize in this.

Get Your Mercedes Diagnosed by Specialists

We use:

• Factory-level diagnostics
• Live data analysis
• Testing, not guessing

Call (480) 947-9297 for a proper diagnosis.