Welcome to official website of

MJdiagnostics

Car repair specialist

-the professional team who

diagnose your car and save

your time and money

We using dealer level diagnostic tools and genuine testing equpment such as picoscope/ fluke/ Autel /Autodata and another for pricise diagnose your car.

We are mobile and local at Norwich area - so you can get your car diagnosed and repair without recovery it to garage.

You can trust us technician as he is qualified Master technician for Fiat/Alfa-Romeo/Jeep/Suzuki with 20 years experience. He also held IMI level 3 and 4 qualification for servicing , repair and diagnose EV vehicles .

A hand is holding a small black device labeled 'BlueDriver,' with a blurred background that includes a bright yellow sports car.
A hand is holding a small black device labeled 'BlueDriver,' with a blurred background that includes a bright yellow sports car.
A white sports car is positioned on a dynamometer in a dimly lit garage. The car's rear lights are illuminated, and there is a screen displaying data in the background. The room is industrial in design with metal platforms and equipment surrounding the vehicle.
A white sports car is positioned on a dynamometer in a dimly lit garage. The car's rear lights are illuminated, and there is a screen displaying data in the background. The room is industrial in design with metal platforms and equipment surrounding the vehicle.
A car service or repair garage is depicted, with a vehicle hoisted on a lift. A laptop is placed on a nearby workstation with an open drawer filled with tools. The environment features tiled walls and floor, and equipment such as a tire changer and a balancing machine. Fluorescent lighting provides illumination.
A car service or repair garage is depicted, with a vehicle hoisted on a lift. A laptop is placed on a nearby workstation with an open drawer filled with tools. The environment features tiled walls and floor, and equipment such as a tire changer and a balancing machine. Fluorescent lighting provides illumination.

What we offer

a man is working on a car's engine
a man is working on a car's engine

-high level diagnose and repair vehicles

-vehicle electronics and wiring repair

-engine component professional testing such as turbo/injectors/MAP/MAF/DPF/SCR , compressions and timing. etc

- Module/components coding/ configurate and proxy/vin relearn

-Engine ecu diagnose , repair and cloning.

-Body/Chassis modules/electronics diagnose/repair

-Professional Battery testing using Midtronics tester

-Alternator regulator testing (COM ,LIN, BSS)

-Key coding and immobilizer repair

-Chip tuning

-2nd exercise/opinion for repairing proces by another garage

AdBlue diagnose and reset

Expert Vehicle Diagnostics and Repair

With over 20 years of experience, MJ Diagnostics specializes in comprehensive vehicle diagnostics, ECU repair, coding, and more, serving the Norwich area with mobile services for various brands.

A person wearing a black t-shirt is smiling while working on the wiring of a car dashboard. The car's interior appears unfinished, showing exposed wires and missing panels.
A person wearing a black t-shirt is smiling while working on the wiring of a car dashboard. The car's interior appears unfinished, showing exposed wires and missing panels.

300

Trusted by Customers

Comprehensive Vehicle Diagnostics

Expert diagnostics and repair services for Fiat, Jeep, Alfa Romeo, Suzuki, and more.

ECU Repair Services

Specializing in ECU repair, cloning, and advanced vehicle programming for optimal performance.

A car with its hood open is parked under a blue tent labeled 'HELIX AUTOSPORT'. The engine is exposed, with a dirty cloth draped over the front. A person stands nearby, wearing a black shirt. Another car is partially visible in the background, also branded with similar logos.
A car with its hood open is parked under a blue tent labeled 'HELIX AUTOSPORT'. The engine is exposed, with a dirty cloth draped over the front. A person stands nearby, wearing a black shirt. Another car is partially visible in the background, also branded with similar logos.
Mobile Diagnostic Solutions

Convenient mobile services in the Norwich area, bringing expert diagnostics right to your location.

A spacious and well-lit automotive repair shop with several vehicles, including a truck on a lift and another with its hood open. The area is organized with tools and equipment scattered around workstations, with blue car lifts and various service bays visible.
A spacious and well-lit automotive repair shop with several vehicles, including a truck on a lift and another with its hood open. The area is organized with tools and equipment scattered around workstations, with blue car lifts and various service bays visible.

MJdiagnostics provided exceptional expertise for my Fiat. That save me a lot of money and time. Instant replacing whole turbo as dealer recomended he replaced a small actuator which is fraction of the price

Martin Mod

A person wearing a black cap and black shirt is working on the engine of a red car, adjusting parts within the engine compartment. The setting appears to be indoors, possibly a workshop or an event with other vehicles or people in the background.
A person wearing a black cap and black shirt is working on the engine of a red car, adjusting parts within the engine compartment. The setting appears to be indoors, possibly a workshop or an event with other vehicles or people in the background.

★★★★★

A custom racing car under a tent in a parking area, adorned with various sponsor logos including NGK and Liqui Moly. There is a person working inside the car, and nearby, there are other vehicles and tents with equipment. The area appears to be part of a racing event with noticeable branding and other automotive-related activities.
A custom racing car under a tent in a parking area, adorned with various sponsor logos including NGK and Liqui Moly. There is a person working inside the car, and nearby, there are other vehicles and tents with equipment. The area appears to be part of a racing event with noticeable branding and other automotive-related activities.

Gallery

Showcasing our expertise in vehicle diagnostics and repairs.

A person wearing a blue shirt is working on a green vehicle, possibly performing maintenance or repairs. Several tools are laid out on a fabric surface on top of the hood, and the individual is focused intently on his task.
A person wearing a blue shirt is working on a green vehicle, possibly performing maintenance or repairs. Several tools are laid out on a fabric surface on top of the hood, and the individual is focused intently on his task.
A person works intently on a vintage car with its hood open in a dimly lit garage. Tools and various mechanical parts are organized on shelves and walls, casting a warm, focused atmosphere. The vehicle appears to be an older model with a silver body and exposed engine components.
A person works intently on a vintage car with its hood open in a dimly lit garage. Tools and various mechanical parts are organized on shelves and walls, casting a warm, focused atmosphere. The vehicle appears to be an older model with a silver body and exposed engine components.
A person wearing a black hoodie with a 'White Dragon Sports Gear' logo on the back is working on the engine of an orange car with an open hood. The scene is in a dimly lit parking garage.
A person wearing a black hoodie with a 'White Dragon Sports Gear' logo on the back is working on the engine of an orange car with an open hood. The scene is in a dimly lit parking garage.