01
TFSI petrol engines
The 1.4, 1.8 and 2.0 TFSI units take a Stage 1 tune well: stronger mid-range torque, crisper throttle response and a more engaging drive in the gears where they are actually used.
S tronic and manual gearboxes are both handled. On S tronic cars, the transmission calibration can be paired with the engine tune — see gearbox tuning — so the whole drivetrain works together rather than the engine outrunning its gearbox map.
02
TDI diesel engines
The 2.0 TDI in its many states of tune is the A4's workhorse, and it responds with strong in-gear pull and a calmer motorway manner. For long-distance drivers, an economy-leaning calibration can deliver around an 8-10% improvement in fuel economy on suitable engines, depending on driving style and route.
Quattro variants gain the same torque benefits with the reassurance of all-wheel drive putting the extra traction down — a particularly satisfying combination on B-road drives.
03
DPF and emissions considerations
A4 TDIs carry a DPF, and the calibration never touches emissions equipment — defeat work on a road vehicle is off the table. Where a DPF blocks repeatedly, we diagnose the cause first and calibrate around a healthy regeneration strategy.
If the filter is worn out, the honest answer is repair. Read the full approach on our DPF solutions page.
04
Health checks and booking
Every A4 appointment opens with dealer-level diagnostics and a health check — the vehicle must be sound before tuning is discussed. See the diagnostics and health check service, or the Audi brand page for the wider range.
Call Paul on 07946 854971 with your registration and engine code for a clear quote. The mobile service comes to you across Medway and Kent — see the areas we cover.
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Audi A4
06
Can you tune an A4 with S tronic?
Yes. The engine tune works within the S tronic limits, and a gearbox calibration can be paired so the whole drivetrain works together.
07
Will an A4 TDI remap improve economy?
On suitable engines, an economy-leaning calibration can deliver around an 8-10% improvement in fuel economy in normal driving, depending on route and driving style.