
A1 Diagnostics provides professional Audi servicing, diagnostics and repairs from our independent garage in Cardiff. From routine oil and filter changes to comprehensive scheduled maintenance, gearbox servicing and electronic fault diagnosis, our technicians can help maintain your Audi’s performance, reliability and safety.
Audi produces a wide range of petrol, diesel, hybrid and electric vehicles. Each model has its own maintenance requirements, fluid specifications and service procedures. Before completing any work, we identify the vehicle using its registration and confirm the maintenance items that are currently due.
Our workshop is located on Sloper Road near Cardiff City Stadium, serving Audi owners from Leckwith, Canton, Grangetown, Riverside, Ely, Fairwater and communities throughout Cardiff and South Wales.
The correct interval depends on the model, engine, servicing schedule, mileage and operating conditions. Audi vehicles may follow fixed or flexible servicing arrangements, so the requirements should be checked for the specific vehicle.
An Audi service may include engine oil and filter replacement, additional filter changes, safety inspections, fluid checks, diagnostic scanning and resetting the service indicator. The precise work depends on what is due.
A suitably equipped independent garage can complete many Audi maintenance and repair procedures. Servicing should follow the applicable schedule and use parts and fluids that meet the required specifications. Check any manufacturer or third-party warranty conditions before booking.
This depends on the vehicle, system compatibility and available access. A1 Diagnostics should confirm this before promising an online service-record update. Suitable documentation of the completed work should also be supplied.
No. The correct oil specification depends on the engine, emissions equipment and servicing schedule. The vehicle must be identified before the appropriate oil is selected.
The requirement depends on the particular S tronic transmission fitted. Different versions use different components, fluids and maintenance schedules, so the gearbox must be accurately identified.
No. Audi uses different four-wheel-drive systems, and not every quattro vehicle has a Haldex-type coupling. Maintenance requirements must be checked against the exact model and drivetrain.
Yes. A1 Diagnostics can investigate many engine, gearbox, ABS, airbag, battery, emissions and driver-assistance warnings. Stored fault codes are used as part of the diagnostic process rather than automatic proof that a part has failed.
A1 Diagnostics can assess servicing requirements for supported Audi hybrid and electric models. High-voltage work requires appropriate equipment, training and safety procedures, so capability should be confirmed when booking.
The price depends on the Audi model, engine and maintenance items due. Provide the vehicle registration, mileage and service information so A1 Diagnostics can prepare an accurate quotation.
The work included in an Audi service depends on the vehicle, its maintenance history and the type of service required. A1 Diagnostics follows the relevant vehicle information rather than applying the same checklist or service interval to every Audi.
Depending on the model and maintenance requirements, an Audi service may include:
1. Engine oil and oil-filter replacement
2. Air-filter inspection or replacement
3. Cabin or pollen-filter replacement
4. Fuel-filter replacement where applicable
5. Spark-plug replacement on applicable petrol engines
6. Brake-fluid replacement
7. Coolant condition and level checks
8. Brake pad and disc inspection
9. Tyre condition and pressure checks
10. Steering and suspension inspection
11. Exterior lighting checks
12. Drive-belt inspection
13. Battery and charging-system checks
14. Diagnostic system scan
15. Inspection for visible fluid leaks
16. Windscreen wiper and washer checks
17. Service-indicator reset
18. Road test where appropriate
Depending on the Audi and how it is used, servicing may follow a fixed or flexible schedule. Fixed servicing can be more suitable for vehicles completing shorter journeys, lower annual mileage or frequent urban driving. Flexible servicing may apply to suitable vehicles used for longer journeys under appropriate operating conditions.



Modern Audi vehicles combine advanced engines, transmissions, electronic control systems and driver-assistance technology. A1 Diagnostics has the workshop facilities to complete routine maintenance while also investigating mechanical, electrical, software and calibration-related faults.
Reasons to choose A1 Diagnostics include:
1. More than 20 years of automotive experience
2. Independent Cardiff garage
3. Bosch Car Service centre
4. Award-winning automotive business
5. Experience servicing and diagnosing Audi vehicles
6. S tronic gearbox servicing and diagnostics
7. Advanced vehicle electrical fault diagnosis
8. ECU and control-module programming
9. Key coding and immobiliser diagnosis
10. Wheel alignment and ADAS calibration
11. Mechanical and electronic repairs in one workshop
12. Eleven vehicle ramps
13. Convenient location near Cardiff City Stadium
14. Clear quotations before additional work begins
15. Support for many petrol, diesel, hybrid and electric Audi models

Audi ranges we service are:
1. Audi A1
2. Audi A3
3. Audi A4
4. Audi A5
5. Audi A6
6. Audi A7
7. Audi A8
8. Audi Q2
9. Audi Q3
10. Audi Q4 e-tron
11. Audi Q5
12. Audi Q7
13. Audi Q8
14. Audi TT
15. Audi e-tron models
16. Audi S and RS models

A1 Diagnostics can upload all service work carried out on your vehicle to the AUDI manufacturers log records meaning all work can be tracked for future reference.

A1-Diagnostics and ECU Repairs
64 Sloper Road
Leckwith,
Cardiff
CF11 8AB
Tel: (029 20) 220380
Fax: (029 20) 223172
Opening Times
Mon – Fri: 8:00am – 6:00pm
