Ter­rain to con­quer for next-gen truck

Mercedes as­sures the fu­ture of its un­stop­pable niche Un­i­mog

The Courier-Mail - Motoring - - WORKING WHEELS - JAMES STAN­FORD

play­ers, the Un­i­mog Euro VI en­gines fea­ture ex­haust gas re­cir­cu­la­tion (EGR) and se­lec­tive cat­alytic re­duc­tion (SCR) so they can hit the Euro VI tar­gets. Aus­tralian heavy ve­hi­cle emis­sion stan­dards are now at the Euro V level, with no time­line set for the in­tro­duc­tion of the Euro VI stan­dard.

Im­por­tantly, the de­vel­op­ment of the Euro VI Uni­mogs shows Mercedes is com­mit­ted to the fu­ture of the niche ter­rain­con­quer­ing truck that is used for ev­ery­thing from snow plough­ing to pulling train wag­ons.

The new Un­i­mog, with a 24-speed gear­box, has en­gines from the new Mercedes truck pow­er­plant range which will run from 5.1-litres to 7.7-litres.

The chas­sis on dis­play was fit­ted with a four-cylin­der OM 934 engine that ac­tu­ally makes more power and torque than a cur­rent six-cylin­der engine. The new power out­put stands at 220kW (299hp) with torque hit­ting the 1200Nm mark.

Six-cylin­der en­gines will also be avail­able in the new Un­i­mog, in­clud­ing a 7.7-litre OM 936, with up to 260kW.

This engine runs a vari­able camshaft phaser for the ex­haust camshaft, which Mercedes says has not been done on any other diesel engine. It says the ex­tra con­trol helps to burn off the ma­te­rial that has been caught in the engine’s par­tic­u­late fil­ter.

Car­ry­ing new tech­nol­ogy such as cat­a­lysts and AdBlue diesel ex­haust treat­ment fluid on-board means the new gen­er­a­tion of Uni­mogs could have ended up weigh­ing more.

But Mercedes en­gi­neers changed sec­tions of the frame to keep the weight in check and in­tro­duced alu­minium wheels that are sig­nif­i­cantly lighter than the reg­u­lar steel rims.

Newspapers in English

Newspapers from Australia

© PressReader. All rights reserved.