Hyundai Tucson
Compact turbodiesel sized for SUVs. Strikes a good balance between power and economy — give the DPF a proper motorway run now and then.
Comfy SUV, family-first
The Tucson TL is a well-kitted family SUV. Dynamics are not the point, but it drives pleasantly enough.
Engine Weaknesses 5
D4FD uses a timing belt drive. Manufacturer recommends replacement every 96,000 km. Earlier preventive replacement is advised, as belt failure causes total engine loss on this interference engine.
Symptoms: No direct symptom before breakage. Knocking and engine stuttering shortly before failure possible.
When DPF regeneration cycles are interrupted, fuel is injected to burn off the soot filter. If regeneration aborts, diesel enters the engine oil — visible as a rising oil level.
Symptoms: Rising oil level (diesel smell in oil), check engine light, blue exhaust cloud, increased consumption.
Early D4FD variants (production 2011–2013) had known engine block cracks leading to coolant loss. Hyundai replaced affected engines under warranty; corrected design after 2013.
Symptoms: Coolant loss without visible external leak, rising coolant temperature, white smoke from exhaust.
All D4FD versions have a DPF that blocks on frequent short trips. Rising oil level from fuel contamination during failed regeneration is a warning sign.
Symptoms: DPF warning light, power loss, engine limp mode, increased fuel consumption and rising oil level.
EGR valve and intake manifold become contaminated with soot in urban use. Engine power and efficiency drop; swirl flaps in the intake manifold can break.
Symptoms: Disturbed idle, engine power loss, fault code P0400–P0409, black exhaust cloud.
Vehicle Weaknesses 10
The Tucson TL DCT shows lack of forward drive despite rising revs, juddering between 40–60 km/h and skipped gears. Hyundai has officially acknowledged gearbox problems.
Tucson TL build years 2017–2020: a short circuit in the ABS module can lead to a vehicle fire. Recall affected 78,542 vehicles — always check before buying.
Vehicles from 2015–2016 were recalled because the bonnet can open while driving — a significant safety risk.
Driveshafts and steering joints are frequently criticised on the Tucson TL according to MOT statistics. The high vehicle weight accelerates wear of suspension components.
Brake discs and pads wear quickly on the heavy Tucson TL. MOT evaluations regularly show brake system complaints; parking brake also affected.
The Tucson TL infotainment system crashes, shows a black screen or USB ports fail permanently. Some owners report full unit replacement after 15,000–22,000 km.
The optional dual-clutch gearbox shows juddering and power interruptions between 40–60 km/h. Vehicles with complete service history are less frequently affected; software updates often only help temporarily.
The Tucson TL start-stop system frequently fails due to a weak starter battery. Short-trip drivers cause premature battery wear, which then affects the entire electrical system.
Rust at weld seams and sheet metal edges on the Tucson TL tailgate and door frames. Some owners report corrosion spots after only a few years, especially on facelift models.
Tucson TL owners report creaking noises from the panoramic roof and interior, especially on uneven roads.