2021 Audi SQ5 Sportback TDI – V6 3.0 TDI with Twin Dosing Technology

The 3.0 TDI has been made even better in many details. The pistons have been changed from aluminum to forged steel. This new material reduces heat losses and because of its strength does not incur any weight penalty compared with aluminum pistons The solenoid valve injectors are able to inject the fuel with a constantly high level of precision because a new piezoelectric sensor monitors the closing of the needle. It can perform up to eight individual injections per work cycle and also meter minimal fuel quantities with high precision.

As in all TDI engines, Audi employs the twin dosing technology with two SCR catalytic converters in the Audi SQ5 Sportback TDI for the aftertreatment of the exhaust gas.The 3.0 TDI has been made even better in many details. The pistons have been changed from aluminum to forged steel. This new material reduces heat losses and because of its strength does not incur any weight penalty compared with aluminum pistons The solenoid valve injectors are able to inject the fuel with a constantly high level of precision because a new piezoelectric sensor monitors the closing of the needle. It can perform up to eight individual injections per work cycle and also meter minimal fuel quantities with high precision.