Audi · Power Calculator

Audi A4 B6 - 2001 - 2004 2.5 TDI 155hp Stage 1 Chip Tuning · ECU Remap

Name: Audi A4 B6 - 2001 - 2004 2.5 TDI 155hp Stage 1 Chip Tuning
Brand: Audi

Catalog reference — not a measured result for this vehicle.

How much bhp does Audi A4 B6 2.5 TDI 155hp chip tuning add?

Catalog reference: power 155 → 190 bhp, difference +35 bhp (23%); torque 310 → 390 Nm. Actual results depend on vehicle condition and measurement.

Power155 → 190 bhp+35 bhp (+23%)

Torque310 → 390 Nm+80 Nm (+26%)

Figures are typical ranges; exact results depend on the vehicle's hardware and dyno measurement.

Stage 1 Remap EGR Delete DPF Delete AdBlue / SCR Delete DTC / Fault Code Removal

Get a Quote

Audi A4 B6 - 2001 - 2004 2.5 TDI 155hp

Book an appointment Find a centre

Reversible: Yes, the original software is kept

Audi A4 B6 - 2001 - 2004 2.5 TDI 155hp — Stage 1 Remap

Stage 1 re-calibrates the ECU software — boost, fuelling and ignition maps — within the factory hardware's safe tolerances. No hardware changes are required.

DPF Delete, EGR Delete, AdBlue / SCR Delete

Audi A4 B6 - 2001 - 2004 2.5 TDI 155hp — Software deactivation of the diesel particulate filter (DPF/FAP) functions and fault codes. Verified software is used for AdBlue / SCR Delete, NOx Sensor Delete and EGR Delete fault solutions.

Solutions for this vehicle

Audi A4 2.5 TDI 155hp EGR fault solution

Audi A4 2.5 TDI Stage 1: all generations →

Stage 1 Remap

Software that optimises the engine's power and torque maps within safe limits.

EGR Delete

Software deactivation of the exhaust gas recirculation (EGR) valve control and fault codes.

DPF Delete

Software deactivation of the diesel particulate filter (DPF/FAP) functions and fault codes.

AdBlue / SCR Delete

Software deactivation of the AdBlue/SCR dosing system and its fault/warning functions.

DTC / Fault Code Removal

Switching off selected diagnostic trouble codes (DTC) in the ECU software.

OUTSIDE TÜRKİYE?

Where can this be done near you?

Prime Chiptuning applies the software at its own centres in Türkiye. Abroad, our partners carry out the work with the same files, and workshops can order the file directly.

ENGINE FAMILY

About the VW 2.5 TDI (Transporter, Crafter, Touareg)

The five-cylinder 2.5 TDI was used in the Transporter T5, Crafter and first-generation Touareg. Designed for work under load, it benefits from a careful calibration both in pulling power and in fuel efficiency.

How a Stage 1 remap works on the Audi A4 B6 2.5 TDI 155hp

Stage 1 re-tunes the torque limiter and boost maps with heavy-load use in mind. Hill climbs and overtaking with a full van improve clearly, and holding the same speed at lower revs can help consumption.

Pre-remap checklist

Camshaft and unit injector wear, the known weak point of this engine.
Turbo and exhaust manifold crack check.
Cooling system and oil pressure.

This section is based on Prime Chiptuning workshop experience; the power and torque figures come from the catalogue measurement above.

ECUs used in Audi vehicles

If you know your ECU family, its page lists exactly which solutions are available for it.

BOSCH EDC17CP14 BOSCH EDC17C64 BOSCH MED17 BOSCH EDC17CP20 BOSCH EDC17C46 BOSCH EDC16 BOSCH EDC17CP44 BOSCH MD1CP004 All ECU families →

Audi A4 — Power Calculator

Engine	Power	Gain
1.6i 102hp	102 → 112 bhp	+10 bhp
1.8T 20v 150hp	150 → 192 bhp	+42 bhp
1.8T 20v 163hp	163 → 200 bhp	+37 bhp
1.8T 20v 190hp	190 → 220 bhp	+30 bhp
1.9 TDI 100hp	100 → 140 bhp	+40 bhp
1.9 TDI 115hp	115 → 145 bhp	+30 bhp
1.9 TDI 130hp	130 → 170 bhp	+40 bhp
2.0 FSI 150hp	150 → 160 bhp	+10 bhp
2.0i 130hp	130 → 140 bhp	+10 bhp
2.5 TDI 163hp	163 → 190 bhp	+27 bhp
2.5 TDI 180hp	180 → 210 bhp	+30 bhp
3.0 V6 220hp	220 → 235 bhp	+15 bhp

Frequently asked questions

How much bhp does Audi A4 B6 2.5 TDI 155hp chip tuning add?

Catalog reference: power 155 → 190 bhp, difference +35 bhp (23%); torque 310 → 390 Nm. Actual results depend on vehicle condition and measurement.

Will chip tuning damage the engine?

No. Values stay inside the safety margin the manufacturer leaves; engine, gearbox and turbo limits are not exceeded. Every file is verified with a road test and data logging. If the car needs maintenance first (worn injectors, blocked filter, weak clutch) we tell you before starting.

Will my fuel consumption go up?

With the same driving style it usually drops, because you hold the same speed at lower revs and less throttle. If you use the extra power, consumption naturally rises. It is down to your right foot.

How long does it take? Do I leave the car?

Most cars take 1–2 hours and you get the car back the same day; no need to leave it. Some models need the ECU removed, which takes longer — we tell you when booking.

Can I go back to stock later?

Yes. The original file is read and archived before any work. We restore the factory software free of charge whenever you ask.

Does it void my warranty?

Changing engine software can affect the manufacturer warranty. If a dealer finds a fault to be software related, they may refuse that claim. We want you to decide knowing this. Your original file stays with us and can be restored before a dealer visit.

Will it pass the roadworthiness test?

Stage 1 power software does not touch emission hardware. Work on emission systems is offered only for uses permitted by law; road use and inspection compliance remain the owner's responsibility.

How much does Audi A4 B6 2.5 TDI 155hp chip tuning cost?

Price depends on the vehicle, the ECU and the solution chosen. Send us your vehicle details on WhatsApp and we will quote straight away. Inspection and measurement are free.

How is the work done?

We scan for faults and read the original software first. The file is adapted to your car's hardware, written, and verified on a road test. The original is archived.

Is DPF Delete possible on the Audi A4 B6 2.5 TDI 155hp?

Yes. Our library contains a verified DPF Delete solution for the Audi A4 B6 2.5 TDI 155hp. Once your original file is read, compatibility is checked and the job is applied.

What is checked on the Audi A4 B6 2.5 TDI 155hp before remapping?

Before working on the VW 2.5 TDI (Transporter, Crafter, Touareg) we check: Camshaft and unit injector wear, the known weak point of this engine. Turbo and exhaust manifold crack check. Cooling system and oil pressure. If something needs attention, maintenance comes first; the remap is applied to a healthy engine.

⚠ Software work on emission systems is offered only for uses permitted by applicable law (motorsport, off-road use, export, fault diagnosis, etc.). Road use and inspection compliance of the vehicle remain the owner's responsibility.