Audi A8 - 4.2i 335hp

5 ECUs found for this engine. Select an ECU to view available tuning services and pricing.

Audi A8 4.2i 335hp Engine Specifications

Fuel Type
Petrol
Displacement
4172 cc (4.2L)
Compression Ratio
11.0 : 1
Bore x Stroke
84.5 X 93.0 mm
Engine Code
BFM
Power per Liter
80.3 HP/L

Audi A8 4.2i 335hp Stage 1 Chiptuning Results

VariantOriginal HPTuned HP+HPOriginal NmTuned Nm+Nm
4.2i 335hp335355+20430450+20
55 TFSI (3.0T) 340hp340400+60500600+100
Bosch ME7.1.118 servicesBosch MED1717 servicesBosch MG1CS00216 servicesContinental Simos 16.118 servicesSiemens20 services

Audi A8 4.2i 335hp: Before this file is prepared

For the Audi A8 4.2i 335hp, the uploaded file is the final reference. We check whether it is original or already modified before preparing the order, and we contact you first if the read or selected service does not match the vehicle data.

  • Upload a complete original ECU read from the tool you used, or a TCU read only when the selected service is gearbox tuning.
  • Add the vehicle year, gearbox, read/write tool and any dashboard or diagnostic symptoms.
  • Select only the services that match the actual vehicle hardware and intended legal use.

Other A8 Engines

2.0 TFSI Hybrid 245hp2.5 TDI VP3.0 TDI CR3.0 TFSI 290hp3.0 V63.2 FSI V6

Audi A8 4.2i 335hp Frequently Asked Questions

What tuning services are available for the Audi A8 4.2i 335hp?
WEREMAP offers 89 tuning services across 5 ECU variants for the Audi A8 4.2i 335hp.
How much does ECU tuning cost for a Audi A8?
ECU tuning prices for the Audi A8 4.2i 335hp range from 24 to 600 credits, depending on the ECU variant and tuning service selected.
What ECU does the Audi A8 4.2i 335hp use?
The Audi A8 4.2i 335hp is available with the following ECU variants: Bosch ME7.1.1, Bosch MED17, Bosch MG1CS002, Continental Simos 16.1, Siemens. WEREMAP provides professional tuning files for all of these.

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