Hyundai D4BB / D4BF / D4BH
inline-4 · turbocharged · diesel · 1993–present
Also known as: d4bb, d4bf, d4bh, d4ba, 2.5 tci hyundai, h100 diesel
Hyundai's older commercial diesels — the 2.5 D4BF/D4BH and 2.6 D4BB — in the H-1, H100, Porter and Galloper.
They are Mitsubishi 4D5 engines built under licence, which is the useful fact: Mitsubishi material and Mitsubishi parts logic apply where Hyundai's are thin, and the family appears in Pajeros and L300s under its own codes.
They are indirect-injection with a mechanical pump — no rail, no filter, nothing to regenerate — so almost every modern diesel complaint is inapplicable and diagnosis is physical.
Glow plugs and their relay are the commonest cold-start fault and are testable in minutes; injection pump timing drifts with the belt and shows as smoke rather than as a running fault.
The D4CB 2.5 common-rail that replaced them has its own page here and shares the vehicles but not the engine — the CRDi badge is the dividing line, and a van of this age may be either.
Cars fitted with this engine
2 generations, across 1 make. From the authored catalogue — an absent car means the catalogue has not reached it, not that the engine was never fitted.
Information, not instruction
CarGeek is a reference, not a service manual. Its pages are written from public sources and from what other people have found, never from a manufacturer's own service information, so they can be wrong or incomplete for your particular vehicle. Some of what they describe carries real risk: high voltage, fuel under pressure, stored energy, hot and moving parts.
Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
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