Check Engine Light Diagnosis
Subaru Check Engine Light Diagnosis
If your Subaru model's Check Engine Light Turns on, you should make an appointment at Cityside Subaru.

Check Engine Light Diagnosis at Cityside Subaru, Serving Boston, MA
Your Subaru has a number of lights on the dashboard that tell you when something is not as it should be, and the Check Engine Light can be one of the more enigmatic of these lights -- and one of the more frustrating ones, as well. But the Check Engine Light doesn't have to be stressful when you come to Cityside Subaru for a diagnostic service near Waltham, Massachusetts. We can help you figure out what's wrong and tell you the recommended course of action to fix things.
Schedule Service
Why Is the Check Engine Light On in your Subaru?
There are so many things that can cause the Check Engine Light to turn on, which is why it's always a good idea to have it checked out at an authorized Subaru service center like Cityside Subaru. An illuminated Check Engine Light can point to a number of problems, including issues with the:
- O2 Sensor
- Spark Plugs
- Thermostat
- Mass Airflow Sensor
- EGR Valve
- Fuel Cap
What the Check Engine Light Means Near Arlington, MA
Your Subaru Crosstrek, Subaru Forester, or other Subaru model has a computer called the Engine Control Unit (ECU) that uses sensors to make sure your engine is operating optimally. If a sensor sends back a reading that is not what it should be, the ECU will first try to fix the problem on its own. If this does not work, it will turn on the Check Engine Light and store a code pointing to the problem sensor.
Choose Cityside Subaru for Check Engine Light Diagnostic Service
If your Subaru model's Check Engine Light Turns on, you should make an appointment at Cityside Subaru. Our technicians will connect a code reader to your Subaru and find out where the error came from. They will then inspect the problem component and let you know the best way forward.

Schedule Check Engine Light Service in Belmont, MA at Cityside Subaru
We look forward to helping you diagnose the problem with your Subaru model's Check Engine Light at Cityside Subaru, serving Lexington, Massachusetts. You can set up your appointment online or over the phone; our service center is open six days a week with extended hours for your convenience. We look forward to seeing you soon here at Cityside Subaru!
Complimentary Amenities
Maintain your Subaru to factory standards with certified service and repair at Cityside Subaru. We have a team of experienced technicians standing by, ready to service your Crosstrek, Outback, Forester, or any other Subaru that you own. To schedule service, head over to our online scheduling page at your convenience.
- Complimentary Wi-Fi
- Complimentary Multi-Point Inspection
- Saturday Service Hours
- Complimentary Beverage & Coffee Bar
- Online Service Scheduling
- Vending Machines
- Certified Technicians
- Genuine OEM Parts
- Comfortable Waiting Area
Service Advisor

Service Bay

Waiting Area

Coffee & Beverages

Complimentary Multi-Point Inspection

Subaru Tires

Service Advisor

Service Bay

Waiting Area

Coffee & Beverages

Complimentary Multi-Point Inspection

Subaru Tires

-
Cityside Subaru
790 Pleasant Street
Belmont, MA 02478
- Sales: (888) 830-5076
Get in Touch
- Service: (888) 492-4866
Service Hours
- Monday7:00AM-6:00PM
- Tuesday7:00AM-6:00PM
- Wednesday7:00AM-6:00PM
- Thursday7:00AM-6:00PM
- Friday7:00AM-6:00PM
- Saturday8:00AM-4:00PM
- SundayClosed