This listing is almost certainly the X-Trail (often shortened to “X”), and the diesel/manual combination was a common European choice in 2019. The diesels use DPF/EGR hardware, so regular longer runs help keep the DPF healthy; also expect manual-clutch wear on a 7‑year-old car. Some X-Trails were offered with an optional 7-seat layout — those have less boot with the extra seats up and extra moving parts to check.

• DPF/EGR behaviour — look for a persistent DPF warning, recent forced-regeneration entries in the service history, or loss of power/smoking after sustained city driving.
• Clutch condition and bite point — check for slipping under load and a high/soft bite which is common as clutches age on manual diesels.
• Turbo health — watch for blue/black smoke under acceleration and listen for unusual whistle/whine which can indicate worn turbo or oil-feed issues.
• Manual gearbox feel — ensure gears engage cleanly without crunching or notchy selectors and check for any whining from the gearbox.
• If it’s a 7-seat car, check the 2nd/3rd-row folding/sliding mechanisms, seat locks and the boot floor area for damage, water ingress or rust around hinges.