HR12DDT / HR12DDV (Renault H5F 6xx) vs K4M
Side-by-side reliability comparison
Specifications
Character
HR12DDT / HR12DDV (Renault H5F 6xx)
"The new three-cylinder 1.2 turbo petrol of the Renault Austral, Espace, Rafale, Clio VI and Captur and the Dacia Duster III (2022 on): 48V mild hybrid (130 hp), LPG Eco-G, and the E-Tech full hybrid and plug-in hybrid (200-300 hp system power). Not related to the old four-cylinder 1.2 TCe. The full-hybrid Austral and Espace built 2022-2024 have had a string of campaigns: a crankcase breather hose that lets fuel dilute the oil (risk of engine seizure), spark plugs replaced for misfires, and cooling-system parts. Mild-hybrid versions have no known engine faults so far. Check that every Renault campaign has been done."
K4M
"Renault 1.6 16V petrol workhorse (Clio, Megane, Scenic, Laguna, Kangoo, Dacia Logan/Duster/Lodgy). Simple and long-lived if serviced. Known faults are cheap or routine: pencil ignition coils on older cars, the variable-timing (phaser) pulley from 60-120k km, and a timing belt that must be changed on time because a failure bends the valves."