VW plans to fix the mess its in with a mesh and soft­ware

The Witness - Wheels - - MOTORING -

VOLK­SWA­GEN Group CEO Matthias Müller had con­firmed in a speech to VW man­agers that the au­tomaker was ready with a fix for most of the four-cylin­der diesel en­gines dis­cov­ered in Septem­ber to have been fit­ted with “de­feat de­vice”.

Volk­swa­gen said in a state­ment the group has pre­sented spe­cific tech­ni­cal mea­sures for the 1,6 and 2,0-litre EA 189 en­gines af­fected to the Fed­eral Mo­tor Trans­port Author­ity.

This means that cor­rec­tion mea­sures have been fixed for the ma­jor­ity of the ve­hi­cles af­fected. In the de­vel­op­ment of the so­lu­tions the fo­cus was on max­i­mum cus­tomer-friend­li­ness.

Af­ter im­ple­men­ta­tion of the tech­ni­cal mea­sures, the ve­hi­cles will com­ply with the ap­pli­ca­ble emis­sions stan­dards.

The fi­nal tech­ni­cal so­lu­tion for the 1,2-litre diesel en­gine will be pre­sented to the Fed­eral Mo­tor Trans­port Author­ity at the end of the month and is ex­pected to com­prise a soft­ware up­date.

The tech­ni­cal mea­sures de­vel­oped for the EA 189 diesel en­gines af­fected have been pre­sented to the Fed­eral Mo­tor Trans­port Author­ity.

Fol­low­ing an in­ten­sive ex­am­i­na­tion, th­ese mea­sures have been rat­i­fied by the Fed­eral Mo­tor Trans­port Author­ity.

A “flow trans­former” will be fit­ted di­rectly in front of the air mass sen­sor on the 1,6-litre EA 189 en­gine.

This is a mesh that calms the swirled air flow in front of the air mass sen­sor and will thus de­ci­sively im­prove the mea­sur­ing ac­cu­racy of the air mass sen­sor.

The air mass sen­sor de­ter­mines the cur­rent air mass through­put, which is a very im­por­tant pa­ram­e­ter for the en­gine man­age­ment for an op­ti­mum com­bus­tion process.

In ad­di­tion, a soft­ware up­date will be per­formed on this en­gine. The time needed for the im­ple­men­ta­tion of the tech­ni­cal mea­sures is ex­pected to be less than one hour.

The 2-litre en­gines will get a soft­ware up­date. The pure labour time for this mea­sure will be around half an hour.

Thanks to ad­vances in en­gine de­vel­op­ment and im­proved sim­u­la­tion of cur­rents in­side com­plex air in­take sys­tems, in com­bi­na­tion with soft­ware op­ti­mi­sa­tion geared to­wards this, it has been pos­si­ble to pro­duce a rel­a­tively sim­ple and cus­tomer­friendly mea­sure.

The ob­jec­tive for the de­vel­op­ment of the tech­ni­cal mea­sures is still to achieve the ap­pli­ca­ble emis­sion tar­gets in each case with­out any ad­verse ef­fects on the en­gine out­put, fuel consumption and per­for­mance. How­ever, as all model vari­ants first have to be mea­sured, the achieve­ment of th­ese tar­gets can­not yet be fi­nally con­firmed.

Based on th­ese tech­ni­cal mea­sures ac­cepted by the Fed­eral Mo­tor Trans­port Author­ity, the nec­es­sary ser­vice con­cepts are cur­rently be­ing de­vel­oped for the EU28 mar­kets con­cerned.

The aim is to im­ple­ment the re­quired tech­ni­cal up­date in the first ve­hi­cles dur­ing a re­call from Jan­uary 2016.

Ac­cord­ing to the cur­rent as­sess­ment, all mea­sures in the course of the re­call for all en­gine vari­ants will ex­tend over the whole cal­en­dar year 2016. Volk­swa­gen will en­sure that the time needed to im­ple­ment the tech­ni­cal mea­sures is as short as pos­si­ble for all cus­tomers.

Based on the ap­proach of the Volk­swa­gen brand, the Group’s other brands — Audi, Seat, Škoda and Volk­swa­gen Com­mer­cial Ve­hi­cles — are also plan­ning cor­re­spond­ing mea­sures for their af­fected ve­hi­cles.

PHOTO: GETTY IM­AGES

Look­ing suit­ably con­trite, Volk­swa­gen Group CEO Matthias Müller ex­plains plans to stop over 11 mil­lion ve­hi­cles with its 1,6 and 2,0 en­gines from cheating when tested for em­mis­sions.

Newspapers in English

Newspapers from South Africa

© PressReader. All rights reserved.