HR12DDT / HR12DDV (Renault H5F 6xx) vs D4F
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."
D4F
"Renault 1.2 petrol for small cars (Twingo, Clio, Kangoo, Modus, Dacia Logan/Sandero): the 8V D7F from 1996, the 16V D4F from 2000. Simple and long-lived. It has a timing belt, not a chain - change it on time because a broken belt bends the valves. Throttle-body fouling causes idle problems; D4F engines built Sep-Nov 2010 had a valve-cotter recall."