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Hyundai Tucson (TL) Diesel 1.7L / 141 hp / 2017 / 2018 : Specs, Safety, and Reliability

The 2017–2018 Hyundai Tucson TL with the U II 1.7 CRDi diesel, 141 hp output, front-wheel drive, and 7-speed dual-clutch transmission sits in a useful middle ground. It is more relaxed and stronger than the lower-output 116 hp 1.7 CRDi manual, but cheaper to buy and run than the 2.0 CRDi AWD versions. For buyers looking at a used compact SUV, the appeal is clear: good cabin space, strong low-speed torque, sensible fuel economy, and a comfortable daily-driving character.

The important point is that this is not a sporty SUV, and it is not ideal for constant short urban trips. Its diesel emissions system and dry-clutch DCT prefer regular longer runs, smooth driving, and proper servicing. Buy a well-maintained example and it can be a practical, efficient family SUV. Buy one with poor service history, DPF warnings, jerky gearbox behavior, or neglected brake and suspension wear, and the running costs can quickly spoil the value.

Final Verdict

The Hyundai Tucson FWD TL 1.7 CRDi 141 hp DCT is a good used choice for drivers who want a roomy, comfortable diesel SUV with strong mid-range torque and better economy than larger 2.0-litre AWD models. It suits commuters, family use, motorway driving, and mixed European-style journeys better than short-hop city work. The main tradeoff is the combination of a diesel DPF/EGR system and a dry-clutch dual-clutch gearbox, both of which dislike neglect and stop-start abuse. A full service history, clean DPF behavior, smooth DCT engagement, and verified recall completion are essential before buying.

ProsCons
Strong 340 Nm torque gives relaxed everyday pulling powerDCT can wear faster in heavy stop-start traffic
Better economy than 2.0 CRDi AWD Tucson modelsDiesel DPF needs regular longer, hotter journeys
Spacious cabin and useful 513-litre bootPerformance is adequate rather than genuinely quick
Higher trims bring AEB, blind-spot monitoring, and better infotainmentSafety kit varies sharply by trim and market
Euro 6 diesel rating helps urban-zone compatibilityEGR, sensors, and emissions faults can become costly
Front-wheel drive keeps weight and servicing simplerNo AWD traction advantage for snow, towing, or rough tracks

Table of Contents

Tucson TL 1.7 CRDi Overview

The 1.7 CRDi 141 hp DCT Tucson is best understood as the efficient automatic diesel version of the third-generation Tucson. It gives the car enough torque for everyday family use without the weight, fuel use, and complexity of the 2.0 CRDi AWD models.

This TL-generation Tucson was sold in Europe and several other markets as a five-door compact SUV. The 141 hp version of the 1.7 CRDi appeared above the 116 hp manual diesel and was paired with Hyundai’s 7-speed dual-clutch transmission. In UK-style trim structures, it was commonly offered as a 2WD Blue Drive ISG model, with Intelligent Stop & Go and Euro 6 emissions compliance.

The engine is Hyundai-Kia’s U II diesel family, known here as the D4FD 1.7 CRDi. It is a 1,685 cc four-cylinder turbo diesel with common-rail injection, an intercooler, four valves per cylinder, and a timing chain. Its main strength is torque: 340 Nm from low revs gives it a useful shove in normal driving, especially compared with the 116 hp version.

As a used SUV, the Tucson’s strongest qualities are practicality and comfort. The driving position is easy, the boot is generous, rear-seat space is family-friendly, and parts support is generally good. The car also feels more substantial than many budget crossovers of the same age.

Its weaker points are more about ownership pattern than design. A diesel Tucson used mainly for short school runs can suffer from DPF loading, EGR soot build-up, and battery strain. A DCT version used like a torque-converter automatic in crawling traffic can develop clutch shudder or hesitant take-off. None of this makes it a bad car, but it does mean the right example matters more than the lowest price.

For most buyers, the sweet spot is a car with documented annual servicing, mostly longer-distance use, no warning lights, smooth gearbox engagement, matching tyres, and evidence that recall or service campaign checks have been done.

Specifications and Technical Data

This Tucson uses a transverse 1.7-litre diesel engine, front-wheel drive, and a 7-speed DCT automatic gearbox. The specification is focused on torque and economy rather than outright performance, with a practical SUV body and a chassis layout that is conventional but well suited to family use.

ItemHyundai Tucson TL 1.7 CRDi 141 hp DCT FWD
Engine family / codeHyundai U II / D4FD
Fuel typeDiesel
Displacement1,685 cc / 1.7 litres
LayoutInline-four, front transverse
Valvetrain16-valve DOHC
InductionTurbocharged and intercooled
Fuel systemCommon-rail direct injection
Maximum power141 hp / 104 kW at 4,000 rpm
Maximum torque340 Nm / 251 lb-ft at 1,750–2,500 rpm
Timing driveTiming chain
Emissions equipmentDiesel particulate filter, Euro 6 diesel controls
Official combined economy4.9 L/100 km / 48 mpg US / 57.6 mpg UK
CO₂ emissions129 g/km
ItemSpecification
Transmission7-speed dual-clutch automatic
Drive typeFront-wheel drive
Start-stop systemBlue Drive ISG on many European versions
Front suspensionIndependent MacPherson strut
Rear suspensionIndependent multi-link
SteeringElectric power-assisted rack and pinion
Front brakesVentilated discs
Rear brakesSolid discs
Common tyre sizes215/70 R16, 225/60 R17, 245/45 R19
ItemValue
Body styleFive-door SUV, five seats
Length4,475 mm / 176.2 in
Width1,850 mm / 72.8 in
Height1,655 mm / 65.2 in
Wheelbase2,670 mm / 105.1 in
Ground clearance172 mm / 6.8 in
Kerb weightAbout 1,470 kg / 3,241 lb
Gross vehicle weightAbout 2,085 kg / 4,597 lb
Boot capacity513–1,503 litres / 18.1–53.1 cu ft
Fuel tank62 litres / 16.4 US gal / 13.6 UK gal
Turning circle10.6 m / 34.8 ft
ItemValue
0–100 km/h11.5 seconds
Top speed185 km/h / 115 mph
Braked towing limitUp to 1,600 kg / 3,527 lb
Unbraked towing limit750 kg / 1,653 lb
Roof load100 kg / 220 lb
ItemUseful value or note
Engine oil quantityAbout 5.3 litres for a service fill
Engine oil gradeLow-SAPS diesel oil, commonly ACEA C2/C3 in 0W-30 or 5W-30
Coolant quantityAbout 6.8 litres
Timing systemChain driven; inspect for noise, stretch, and correlation faults
Fuel filterImportant on CRDi models; replace on schedule or sooner with fuel-quality symptoms

Trims, Options, Safety and Assistance

Equipment varies heavily by country, but the 141 hp 1.7 CRDi DCT was usually positioned above basic Tucson models. In the UK-style range, it appeared in trims such as SE, SE Nav, Sport Edition, Premium, and Premium SE, with the higher grades adding the most useful safety and convenience kit.

Trim and option highlights

Lower trims are worth considering only if the service history and mechanical condition are excellent. Higher trims are more desirable because they add features that improve the car every day, not just showroom appeal.

Typical equipment differences include:

  • SE and SE Nav: sensible core trim, with SE Nav adding the larger navigation screen, reversing camera, traffic services, and speed-limit information on many cars.
  • Sport Edition: usually adds larger wheels, visual trim upgrades, part-leather-style cabin finish, front and rear parking sensors, and a sportier look.
  • Premium: a strong used-market choice because it commonly adds safety upgrades such as autonomous emergency braking and blind-spot detection.
  • Premium SE: the most luxurious version, often including smart key entry, powered and ventilated front seats, panoramic sunroof, smart tailgate, and smart park assist on compatible automatic/DCT cars.

For quick identification, look for the rear engine badge, trim badges or dealer paperwork, wheel size, seat trim, navigation screen size, panoramic roof, and whether the car has buttons or menu entries for lane warning, blind-spot monitoring, and parking assist. A VIN-based build sheet is the best way to confirm factory equipment.

Wheel choice matters. The 16- and 17-inch wheels generally ride better and cost less for tyres. The 19-inch wheels sharpen the look but add tyre cost and can make the ride firmer over broken roads.

Safety ratings

The third-generation Tucson earned a five-star Euro NCAP rating under the 2015 test protocol. Scores commonly quoted for the TL-generation test are 86% for adult occupant protection, 85% for child occupant protection, 71% for pedestrian protection, and 71% for safety assist. These results are good for the period, but they should not be compared directly with newer Euro NCAP ratings, because the test procedures have become tougher.

The structure performed well for its time, and the car has the expected core safety equipment: front airbags, front side airbags, curtain airbags, anti-lock brakes, electronic stability control, tyre pressure monitoring, hill-start assist, downhill brake control on many markets, and ISOFIX child-seat mounting points on the outer rear seats.

Driver assistance systems

The big buyer point is that ADAS availability depends on trim. Autonomous emergency braking, blind-spot detection, rear cross-traffic alert, lane departure warning, and smart park assist were not universal across all 2017–2018 cars.

After windscreen replacement, front-end repairs, bumper removal, radar work, or suspension alignment, ADAS sensors may need checking or calibration. On a used car, warning lamps, unavailable driver-assist messages, mismatched bumper repairs, or a non-OE windscreen should prompt a closer inspection.

Reliability, Common Issues and Service Actions

A well-serviced Tucson 1.7 CRDi can be reliable, but most expensive problems come from diesel emissions equipment, DCT wear, neglected fluids, or high-mileage chassis parts. The best examples are cars with regular motorway use, annual servicing, clean diagnostics, and no history of repeated DPF or gearbox complaints.

Issue areaPrevalenceCost riskTypical signs
DPF loadingOccasional to common on short-trip carsMedium to highDPF lamp, frequent regens, rising fuel use
EGR soot build-upOccasionalMediumRough idle, hesitation, smoke, engine light
DCT clutch wear or shudderOccasionalMedium to highJudder, delayed take-off, hot clutch smell
Dual-mass flywheel vibrationOccasional at higher mileageHighRattle, vibration, harsh start/stop events
Suspension bushes and linksCommon wear itemLow to mediumKnocks, wandering, uneven tyre wear
Brake corrosion or bindingCommon on low-use carsLow to mediumPulsation, scraping, hot wheel, poor handbrake

Diesel emissions and intake faults

The DPF works best when exhaust temperature gets high enough for soot burn-off. Short urban trips, long idling, failed thermostats, weak batteries, poor-quality oil, and interrupted regenerations can all create trouble. A healthy car should not constantly show DPF messages or need forced regeneration.

Symptoms usually follow a pattern: warning light or reduced power, then a diagnostic soot-load reading, then either a successful regeneration, cleaning, sensor repair, or DPF replacement if the substrate is damaged. Do not buy a car that has had warning lights cleared without a proper cause being fixed.

EGR faults are also worth checking. Soot contamination can cause rough running, hesitation, limp mode, or fault codes. Cleaning may help in mild cases, but worn valves, failed coolers, or electrical actuator faults usually need replacement.

DCT gearbox behavior

The 7-speed DCT is efficient and pleasant on the move, but it is not the same as a traditional torque-converter automatic. It uses clutches, so creeping uphill, holding the car on the throttle, and repeated stop-start crawling can heat and wear the clutch packs.

During a test drive, check for:

  • Smooth take-off from cold and warm.
  • No heavy judder when reversing uphill.
  • Clean gear changes under light and moderate throttle.
  • No burning smell after parking maneuvers.
  • No gearbox warning messages.
  • No repeated hesitation when joining roundabouts.

Some DCT concerns are improved by software updates or clutch adaptation procedures. Mechanical clutch wear, leaking seals, or flywheel issues are different and can be expensive.

Engine, timing chain, turbo, and fuel system

The U II 1.7 CRDi uses a timing chain rather than a routine timing belt. That does not make it maintenance-free forever. Listen for chain rattle at cold start, rough running, cam/crank timing-correlation faults, or metallic noise from the timing end. Chain replacement is not a normal cheap service item, so a noisy engine should not be ignored.

Turbocharger problems are less common than emissions or EGR issues, but check for boost leaks, split hoses, siren-like turbo noise, oil smoke, and poor acceleration. Diesel fuel quality matters as well. A partially blocked fuel filter can cause hard starting, loss of power, surging, or rail-pressure codes.

Recalls, service actions, and software

Recall coverage is VIN-specific. Some markets issued Tucson TL recalls or service campaigns covering items such as ABS module fire risk, heater-related electrical concerns, software updates, and other market-specific fixes. Completion should be verified through Hyundai’s official recall checker, a dealer printout, or a service invoice.

For this engine and gearbox, software updates can matter. Ask whether the ECU and TCU have had any available updates applied, especially if the car has a history of hesitant shifting, warning lights, DPF complaints, or abnormal idle behavior. A proper diagnostic scan before purchase is worth paying for.

Maintenance and Buyer’s Guide

The safest maintenance approach is annual servicing at minimum, with shorter oil intervals for urban use, towing, cold climates, or repeated short journeys. A diesel Tucson may tolerate long official intervals when used properly, but conservative servicing is better for the turbo, chain, DPF, and DCT.

IntervalRecommended work
Every 10,000–15,000 km or 12 monthsEngine oil and filter, tyre rotation, brake inspection, fluid checks, diagnostic scan
Every 15,000–20,000 kmEngine air filter inspection or replacement, cabin filter replacement
Every 30,000 kmFuel filter, brake fluid condition check, suspension and driveshaft inspection
Every 2 yearsBrake fluid replacement, coolant strength check, air-conditioning inspection
Every 60,000 kmDCT fluid/service check by VIN, auxiliary belt inspection, wheel alignment check
Every 100,000 km or 5 yearsCoolant service if due, battery test, full underbody and corrosion inspection
At high mileageTiming-chain noise check, turbo inspection, injector correction check, DPF soot/ash data

Use the correct low-ash diesel oil. The DPF depends on low-SAPS oil, and using the wrong oil can shorten DPF life. Keep the oil level correct, but do not overfill it. On diesels that perform active regeneration, oil dilution from failed or interrupted regens can be a warning sign.

The DCT needs special attention. Even when a schedule says “no service required” under normal use, used-car reality is different. At higher mileage, ask a Hyundai specialist whether the transmission fluid, clutch adaptation, and software status should be checked. Smooth calibration is part of good ownership.

Pre-purchase inspection checklist

A good Tucson 1.7 CRDi DCT should feel clean, smooth, and predictable. Walk away from cars with hidden warning lights, patchy service records, poor tyres, or vague explanations about DPF and gearbox work.

Check these before buying:

  • Full service history with correct oil and filter intervals.
  • Cold start with no chain rattle, smoke cloud, or uneven idle.
  • Clean acceleration without limp mode or boost hesitation.
  • DPF data showing reasonable soot and ash levels.
  • No EGR, glow plug, boost, NOx, or pressure-sensor fault codes.
  • Smooth DCT take-off, reverse, and low-speed maneuvering.
  • No coolant loss, oil leaks, or diesel smell.
  • Even tyre wear and matching tyres across each axle.
  • Suspension free of knocks from links, bushes, and top mounts.
  • Rear brakes and parking brake working cleanly.
  • Recall and campaign status verified by VIN.
  • All ADAS, parking sensors, camera, and infotainment functions working.

The best years to seek are not simply “2017” or “2018”; the best car is the one with the right use pattern. A high-mileage motorway car with dealer history can be a better buy than a low-mileage city car with repeated DPF warnings. Premium and Premium SE trims are attractive, but expensive options such as panoramic roofs, electric seats, and parking systems should all be tested carefully.

Driving, Performance and Efficiency

The 1.7 CRDi 141 hp DCT Tucson drives like a relaxed family SUV, not a performance model. Its best quality is low-rev torque, which makes it easy to keep up with traffic without working the engine hard.

The 0–100 km/h time of around 11.5 seconds tells the story. It is quick enough for daily use, overtaking with planning, and long-distance cruising, but not lively in the way a petrol turbo rival can feel. The DCT helps by keeping the diesel in its useful torque band, though it can hesitate briefly from a standstill if the driver asks for a sudden launch.

In town, the steering is light, visibility is good, and the car feels easy to place. The ride is generally comfortable on 16- or 17-inch wheels. On 19-inch wheels, road imperfections are more noticeable, especially with worn tyres or tired suspension bushes.

At motorway speed, the Tucson feels stable and mature. Wind and road noise are reasonable for the class, and the diesel settles into an efficient cruise. The engine is more audible when cold, under heavy throttle, or during regeneration, but it is not harsh by diesel SUV standards.

Real-world fuel economy depends strongly on use:

Driving patternExpected economy
Gentle motorway cruising5.2–6.2 L/100 km / 45–54 mpg UK / 38–45 mpg US
Mixed driving5.8–6.8 L/100 km / 42–49 mpg UK / 35–41 mpg US
Urban short trips6.8–8.2 L/100 km / 34–42 mpg UK / 29–35 mpg US
Cold weather and repeated short runsNoticeably worse, with higher DPF risk

For towing, the 1,600 kg braked rating is useful, but this is not the best Tucson for frequent heavy towing. The 2.0 CRDi AWD versions offer more torque, traction, and confidence with heavier loads. The 1.7 FWD is better suited to occasional towing, light trailers, bikes, small caravans within limits, and sensible loading.

How the Tucson 1.7 CRDi Compares to Rivals

The Tucson 1.7 CRDi DCT competes well as a used family SUV because it blends space, comfort, equipment, and economy. Its main rivals may feel sharper, plusher, or more premium, but the Hyundai often wins on value and practicality.

RivalHow it compares
Kia Sportage 1.7 CRDiMechanically close, similar strengths, often sportier styling and comparable issues
Nissan Qashqai 1.5 / 1.6 dCiUsually more economical, but smaller and less substantial inside
Volkswagen Tiguan 2.0 TDIMore premium feel, but often costs more to buy and repair
Ford Kuga 1.5 / 2.0 TDCiBetter steering and handling, but cabin packaging is less generous
Mazda CX-5 dieselMore engaging to drive, but diesel condition and service history are critical
Peugeot 3008 dieselMore modern interior feel, but different ergonomics and sometimes higher electronics risk

Against the Kia Sportage, the Tucson is largely a matter of styling, equipment, price, and local availability. Both share much of the same diesel and platform logic. Choose the cleaner car, not the badge.

Against the Qashqai, the Hyundai feels roomier and more robust, while the Nissan can be lighter and thriftier. The Tucson is the better choice for buyers who want rear-seat space and a more substantial motorway feel.

Against the Tiguan, the Hyundai is usually the value choice. The Volkswagen may feel more refined and premium, but equivalent diesel automatic examples can be more expensive to buy and maintain.

The Tucson 1.7 CRDi DCT makes the most sense for buyers who want a practical automatic diesel SUV and do enough longer driving to keep the emissions system healthy. It is not the best choice for low-mileage city use, and it is not the strongest tow vehicle in the Tucson range. As a balanced used family car, though, a carefully inspected 2017–2018 example remains a sensible option.

References

Disclaimer

This article is for informational purposes only and is not a substitute for professional diagnosis, servicing, or repair. Specifications, torque values, service intervals, fluids, recalls, software updates, and procedures can vary by VIN, market, trim, equipment, and production date. Always verify details against the official owner’s manual, service documentation, Hyundai dealer systems, and a qualified technician before making maintenance or buying decisions.

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