We can help diagnose fault U0301, U0302, U0303, U0321, U0326, U0327 on your Mercedes vehicle

A1 Diagnostics have all the latest Mercedes equipment and technology needed to diagnose fault codes. Fault codes such as U0301, U0302, U0303, U0321, U0326, U0327 in Mercedes vehicles and cars can be fully repaired from our garage workshop pictured below.



When you experience a fault like U0301, U0302, U0303, U0321, U0326, U0327 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 U0301, U0302, U0303, U0321, U0326, U0327.



Mercedes Fault Code: U0301, U0302, U0303, U0321, U0326, U0327

The U0301, U0302, U0303, U0321, U0326, U0327 are Mercedes fault codes, a description for each is shown below.

• U0301 Software Incompatibility with ECM/PCM
• U0302 Software Incompatibility with TCM (Transmission Control Module)
• U0303 Software Incompatibility with Transfer Case Control Module
• U0321 Software Incompatibility with Ride Level Control Module
• U0326 Software Incompatibility with Vehicle Immobilizer Control Module
• U0327 Software Incompatibility with Vehicle Security Control Module Mercedes new Bosch drive-by-wire throttle body failing
What are causing these fault codes to be displayed are listed below.
• Engine Control Module (ECM)/Powertrain Control Module (PCM) Programmed With Incorrect Software
• Faulty Engine Control Module (ECM)/Powertrain Control Module (PCM)


Any of the points raised above can be why the U0301, U0302, U0303, U0321, U0326, U0327 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 U0301, U0302, U0303, U0321, U0326, U0327 fault codes

The U0301, U0302, U0303, U0321, U0326, U0327 fault code is a common occurrence. The U0301, U0302, U0303, U0321, U0326, U0327 we can diagnose and fix quickly and reliably. We have mechanics that can fix the U0301, U0302, U0303, U0321, U0326, U0327 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.

A1 DIAGNOSTICS HAVE THE EQUIPMENT TO ENSURE A TOP-LEVEL SERVICE

When you experience a U0301, U0302, U0303, U0321, U0326, U0327 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.

A1-Diagnostics
64 Sloper Road
Leckwith,
Cardiff
CF11 8AB

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

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Email: info@a1-diagnostics.com