Thaum kawg ntawm xyoo 2008, Hyundai-Kia tau qhia txog lub cim tshiab ntawm R-series diesel xyaw, uas tau tsim los ntawm Hyundai European kev tshawb fawb thiab kev loj hlob chaw hauv Rüsselheim. Lub cav 2.2-liter muaj lub cam khwb cia hlau thaiv, aluminium 16-valve lub tog raj kheej lub taub hau nrog hydraulic lifters, Bosch CP4 Common Rail roj system nrog 1800 bar piezo injectors, thiab lub sij hawm saw tsav. Supercharging ntawm no tau ua tiav los ntawm kev siv lub geometry turbine sib txawv Garrett GTB1752VLK.
Ntxiv rau qhov kev hloov kho ib txwm muaj nrog lub peev xwm ntawm 190-200 hp, muaj ib qho derated version uas tsim 150 hp / 412 Nm. Lub tshuab hluav taws xob no tau zoo heev ntawm Karnival minivans.
R tsev neeg kuj suav nrog cov diesel: D4HA, D4HC, D4HD, D4HE thiab D4HF.
Lub tshuab hluav taws xob no tau nruab nrog Bosch CP4 Common Rail roj system nrog piezo injectors, uas tsis zam cov roj diesel tsis zoo thiab lub twj tso kua mis txhaj tsis tau sai heev los ntawm nws. Tom qab ntawd lub twj tso kua mis pib tsav cov chips, thiab nws kis tau los ntawm qhov system thiab clogs lub nozzles.
Lub sij hawm saw tsav ntawm no yog qhov txhim khu kev qha thiab khiav ntsiag to mus txog 200 txhiab kilometers, tsuas yog ob peb tus tswv ntawm lub cav ntawm thawj xyoo ntsib hydraulic tensioner wedge. Lub suab nrov ntawm lub sij hawm chains feem ntau txhais tau hais tias lub crankshaft damper pulley yog hnav.
Lawm, muaj tag nrho cov teeb meem ntawm niaj hnub diesel xyaw nrog EGR valve, nws clogs mus txog 100,000 km thiab nrog ib tug particulate lim, nws cov peev txheej yog ntev li ob zaug. Tseem feem ntau cov glow plug relay tsis ua haujlwm lossis lawv cov xov hlau tawg.
Nyob rau hauv cov rooj sab laj tshwj xeeb, lawv feem ntau yws txog cov npoo ntawm lub turbine geometry hloov pas nrig thiab qhov tsis ua haujlwm ntawm lub zog siab sensor, tab sis lub turbocharger nws tus kheej ua haujlwm ntawm no ntev. Tsis tas li ntawd, ntawm cov chav nyob ntawm thawj xyoo ntawm kev tsim khoom, muaj cov xwm txheej ntawm kev tawg ntawm lub tog raj kheej taub hau gasket.
