Oil cooler / oil cooling component failures
Often reportedOwners report breakage or leakage of the oil cooler and oil cooling circuit components; this can render the vehicle unusable and cause difficulty in finding spare parts.
Cooling
When buying a used BMW 4 Series 425d 2016 (F32 / F33 / F36 / F82 / F83), the most frequently mentioned issue is: oil cooler / oil cooling component failures. Also, EGR / swirl flap clogging (carbon buildup in intake ports) is commonly reported.
Engine varies by trim; verify the engine code on the listing.
Listed from most frequently reported, each with its source.
Owners report breakage or leakage of the oil cooler and oil cooling circuit components; this can render the vehicle unusable and cause difficulty in finding spare parts.
Cooling
Carbon buildup in EGR valves and swirl flaps is reported on modern N47 diesel engines; this can cause idle fluctuations and performance loss, requiring cleaning or removal.
Engine Bay
On N47 engines (including 2.0 218 HP), the timing chain and guides frequently stretch and wear; this can cause rattling noises from the rear of the engine, electronic warnings, or loss of synchronization. Repair is labor-intensive.
Timing chain
Diesel particulate filter (DPF) and regeneration cycles can cause problems, especially with city or short-distance driving; incomplete regenerations, warning lights, and need for cleaning or replacement may occur.
Exhaust Emissions
User reports and technical reports indicate faults or malfunctions in turbocharger components (wastegate actuator or variable geometry) on BMW 2.0 liter diesel engines.
Turbo
Same trim, different year
We only publish claims we can verify. Cards come from Difetti fault records matched to this vehicle on brand, fuel, engine and generation.