We can help diagnose fault U0073 on your Mercedes vehicle

A1 Diagnostics have all the latest Mercedes equipment and technology needed to diagnose fault codes. Fault codes such as U0073 in Mercedes vehicles and cars can be fully repaired from our garage workshop pictured below.

When you experience a fault like U0073 with your Mercedes vehicle you will get a fault code. This fault code will then explain what the symptoms are and what you need to do to service the vehicle. This month we are going to be looking at Mercedes vehicle fault codes and we start off with U0073.

Mercedes Fault Code: U0073

The U0073 is a MERCEDES-BENZ fault code and is related to the Control Module Communications Bus Off. When you get a U0073 Mercedes fault code here are the symptoms and what could be happening.

• Diagnosis of this Diagnostic Trouble Code (DTC) is accomplished via the vehicle symptom(s)
• Check for more codes
• Faulty Control Module
• Control Module harness is open or shorted
• Control Module circuit poor electrical connection

Any of the points raised above can be why the U0073 fault code is being displayed, your Mercedes vehicle will need immediate assistance to avoid any further damage to the car.

We have Mercedes mechanics with over 20 years’ experience servicing U0073 fault codes

The U0073 fault code is a common occurrence. The U0073 we can diagnose and fix quickly and reliably. We have mechanics that can fix the U0073 fault code that have over 20 years’ experience working in our Mercedes garage, so, when you leave your Mercedes vehicle with us it is in safe hands.


When you experience a U0073 fault you will need a garage with all the latest vehicle technology to service and repair the fault. A1 Diagnostics have all the technology needed to ensure your Mercedes vehicle is serviced reliably at the most affordable prices.

If you have any queries or experience a Mercedes fault code get in touch and let us look at your vehicle and we will get you back out on the road quickly and efficiently.

Contact A1 Diagnostics

Get in touch today for expert advice or to book your vehicle in for an appointment we are happy to help you with any queries you have.

64 Sloper Road
CF11 8AB

Tel: (029 20) 220380
Fax: (029 20) 223172

Opening Times

Mon – Fri: 8:00am – 6:00pm

Email: info@a1-diagnostics.com