Credov's researched list of the 3 faults the Nissan Skyline 400R is known for, 3 of them serious or costly. Each one says what to look for when you check the car, so you can spot it before you buy. Not every car has these faults: they are the ones worth checking on this model.
What to look for: At start-up check for a power steering or chassis warning, then confirm the wheel is centred and holds a line.
Why it matters: The first-generation system (2014-2016 builds) is worst; Infiniti revised the control logic from 2016. Repairs range from software and recalibration to steering modules or actuators costing several thousand dollars.
What to look for: Drive through every gear and check it does not get stuck in 3rd or flag a limp-mode warning.
Why it matters: About 20 complaints for 2014 and 45 for 2015 Q50s, typically 90,000-185,000 km, with valve body or gearbox replacement at US$2,500-10,000. The 200GT-t uses a Mercedes gearbox instead.
What to look for: Check for white or blue exhaust smoke on start-up and after idling, and feel for a sudden limp mode.
Why it matters: US complaints for 2017-2019 Q50s and Q60s with this engine are mostly at 70,000-230,000 km, some earlier, and Infiniti extended turbo warranty cover on US cars to 10 years / 120,000 miles. A pair of turbos costs about US$6,000-9,000; oil starvation from a failing turbo can take the engine with it.
Got a question about a Nissan Skyline 400R? Ask Credov: a noise, a warning light, a part or how to fix it.
On top of the faults above, every Credov inspection covers the basics: fuel smell, leaks or filler rust, engine oil leaks, power steering fluid leak, drive belt cracks or squeal, rust underneath: chassis and mounts, engine mounts, engine oil level and colour, coolant level, colour and leaks, head gasket failure signs, cold start: rattle, knock or smoke, rough or hunting idle, engine running hot on gauge, gearbox or diff oil leak, swapped gearbox without lvv and more.
Researched by Credov from manufacturer recalls and service bulletins, owner reports and workshop sources. Repair prices are typical ranges, not quotes. See also fault codes and repair costs.